Exhibit 2.2
                                                                     -----------



                            ASSET PURCHASE AGREEMENT

                                 BY AND BETWEEN

                     CALIFORNIA KIDNEY CENTERS, ORANGE, LLC
                                       and

                   RENAL TREATMENT CENTERS - CALIFORNIA, INC.

                           DATED AS OF OCTOBER 6, 1997

 
                                TABLE OF CONTENTS

                                                                          PAGE

ARTICLE 1.            PURCHASE AND SALE OF ASSETS..........................  1

         Section 1.1  Assets to be Transferred.............................  1
         Section 1.2  Assumed Contracts....................................  2

ARTICLE 2.            ASSUMPTION OF LIABILITIES............................  2

         Section 2.1  Liabilities to be Assumed............................  2
         Section 2.2  Liabilities Not to be Assumed........................  3

ARTICLE 3.            PAYMENT OF PURCHASE PRICE; CLOSING ..................  3

         Section 3.1  Purchase Price.......................................  3
         Section 3.2  Payment of Purchase Price............................  3
         Section 3.3  Closing..............................................  3
         Section 3.4  Items to be Delivered at the Closing by the Company..  3
         Section 3.5  Items to be Delivered at the Closing by the Purchaser. 4
         Section 3.6  Prorations...........................................  4

ARTICLE 4.            REPRESENTATIONS AND WARRANTIES OF THE COMPANY........  4

         Section 4.1  Formation and Existence..............................  4
         Section 4.2  Power and Authority..................................  5
         Section 4.3  Conflicts............................................  5
         Section 4.4  Financial Statements.................................  5
         Section 4.5  Title to and Condition of Assets.....................  5
         Section 4.6  Subsidiaries and Partnerships........................  6
         Section 4.7  Contracts............................................  6
         Section 4.8  Proprietary Rights...................................  6
         Section 4.9  Sufficiency of Purchased Assets......................  6
         Section 4.10  Compliance With Laws................................  6
         Section 4.11  Litigation..........................................  7
         Section 4.12  Labor Matters.......................................  7
         Section 4.13  Liabilities.........................................  7
         Section 4.14  Environmental.......................................  8
         Section 4.15  Brokers' Fees.......................................  8
         Section 4.16  Required Filings and Consents.......................  8
         Section 4.17  Patients............................................  8
         Section 4.18  Physicians..........................................  8
         Section 4.19  Medicare Certification; State Licensure.............  8
         Section 4.20  Ownership...........................................  9
         Section 4.21  Insurance...........................................  9

ARTICLE 5.            REPRESENTATIONS AND WARRANTIES OF THE PURCHASER......  9

         Section 5.1  Corporate Existence..................................  9
         Section 5.2  Corporate Power and Authority........................  9
         Section 5.3  Conflicts............................................  9
         Section 5.4  Litigation........................................... 10
         Section 5.5  Brokers' Fees........................................ 10

                                       i

 
                                TABLE OF CONTENTS

                                                                          PAGE

         Section 5.6  Financing............................................ 10
         Section 5.7  Compliance With Laws................................. 10

ARTICLE 6.            COVENANTS OF THE COMPANY AND THE PURCHASER........... 10

         Section 6.1  Company Covenants.................................... 10
         Section 6.2  Purchaser Covenants.................................. 12

ARTICLE 7.            CONDITIONS TO OBLIGATION OF PURCHASER TO CLOSE....... 13

         Section 7.1  Accuracy of Representations and Warranties........... 13
         Section 7.2  Performance.......................................... 13
         Section 7.3  Governmental Consents................................ 13
         Section 7.4  Third Party Consents................................. 13
         Section 7.5  Additional Documents................................. 14
         Section 7.6  No Injunction........................................ 14

ARTICLE 8.            CONDITIONS TO OBLIGATION OF THE COMPANY TO CLOSE..... 14

         Section 8.1  Accuracy of Representations and Warranties........... 14
         Section 8.2  Performance.......................................... 14
         Section 8.3  No Injunction........................................ 14
         Section 8.4  Equityholder Approval; Attorney General Consent...... 14
         Section 8.5  Governmental Consents................................ 15
         Section 8.6  Third Party Consents................................. 15
         Section 8.7  Additional Documents................................. 15

ARTICLE 9.            TERMINATION OF AGREEMENT............................. 15

         Section 9.1  Right to Terminate Agreement......................... 15
         Section 9.2  Effect of Termination................................ 15

ARTICLE 10.           INDEMNIFICATION AND RELATED MATTERS.................. 16

         Section 10.1  Indemnification by the Company...................... 16
         Section 10.2  Indemnification by the Purchaser.................... 16
         Section 10.3  Expiration of Representations, 
                        Warranties and Covenants........................... 16
         Section 10.4  Deductible Amount................................... 16
         Section 10.5  Maximum Liability................................... 17
         Section 10.6  Knowledge of Breach................................. 17
         Section 10.7  No Implied Representations.......................... 17
         Section 10.8  Indemnification Claims.............................. 17
         Section 10.9  Defense of Third Party Actions...................... 18
         Section 10.10  Subrogation........................................ 18
         Section 10.11  Exclusivity........................................ 19
         Section 10.12  Accounts Receivable................................ 19
         Section 10.13  Tax Matters........................................ 19
         Section 10.14  Tail Insurance..................................... 19

ARTICLE 11.           MISCELLANEOUS PROVISIONS............................. 19

                                      ii

 
                                TABLE OF CONTENTS

                                                                          PAGE

         Section 11.1  Time of Essence..................................... 19
         Section 11.2  Compliance with Laws................................ 19
         Section 11.3  Publicity........................................... 19
         Section 11.4  Access of the Company to Books and Records.......... 20
         Section 11.5  Governing Law....................................... 20
         Section 11.6  Venue and Jurisdiction.............................. 20
         Section 11.7  Notices............................................. 20
         Section 11.8  Table of Contents and Headings...................... 21
         Section 11.9  Assignment.......................................... 21
         Section 11.10  Parties in Interest................................ 21
         Section 11.11  Severability....................................... 21
         Section 11.12  Entire Agreement................................... 21
         Section 11.13  Expenses........................................... 21
         Section 11.14  Waiver............................................. 22
         Section 11.15  Amendments......................................... 22
         Section 11.16  Counterparts....................................... 22
         Section 11.17  Waiver of Bulk Transfer Laws....................... 22
         Section 11.18  Post-Signing Procedure............................. 22
         Section 11.19  Interpretation of Agreement........................ 22
         Section 11.20  Commercially Reasonable Efforts.................... 23


                                      iii

 
EXHIBITS:

Exhibit A         Defined Terms
Exhibit B         Bill of Sale and Assignment
Exhibit C         Noncompetition Agreement
Exhibit D         Assumption Agreement
Exhibit E         Allocation of Purchase Price
Exhibit F         Statement of Adjustments

SCHEDULES:

Disclosure Schedule
Schedule 6.2(e)   Assumed Employees

                                      iv.

 
                            ASSET PURCHASE AGREEMENT


         THIS ASSET PURCHASE AGREEMENT (this "Agreement") is entered into as of
October 6, 1997, by and between CALIFORNIA KIDNEY CENTERS, ORANGE, LLC, a
California limited liability company (the "Company") and RENAL TREATMENT CENTERS
- - CALIFORNIA, INC., a Delaware corporation (the "Purchaser"). Certain
capitalized terms used in this Agreement are defined in Exhibit A.

                                    RECITALS

         A. The Company provides (i) outpatient dialysis services to end stage
renal disease patients ("ESRD Patients") at Medicare certified outpatient
hemodialysis facilities owned by the Company, (ii) home dialysis supplies and
support services and (iii) acute inpatient dialysis services at local hospitals
in Irvine, California under contract (collectively, the "Business").

         B. The Purchaser and its Affiliates are experienced in the ownership,
management and operations of hemodialysis facilities and inpatient dialysis
services.

         C. The Purchaser desires to purchase from the Company, and the Company
desires to sell to the Purchaser, substantially all of the assets of the Company
relating to the Business.

                                    AGREEMENT

         NOW THEREFORE, in consideration of the foregoing and the mutual
representations, warranties, covenants and agreements set forth herein, the
parties, intending to be legally bound, agree as follows:

                                    ARTICLE 1
                          PURCHASE AND SALE OF ASSETS.

         Section 1.1 Assets to be Transferred. Subject to the terms and
conditions of this Agreement, on the Closing Date the Company shall sell,
transfer, convey, assign, and deliver to the Purchaser, and the Purchaser shall
purchase and accept from the Company, all of the assets, rights, claims and
contracts (of every kind and nature, character and description, whether real,
personal or mixed, whether tangible or intangible, whether accrued, contingent
or otherwise, wherever situated) owned by the Company and used in the conduct of
the Business, except the Excluded Assets, (the "Purchased Assets"). The
Purchased Assets shall include, without limitation, the following other than
Excluded Assets:

         (a) Fixtures. All fixtures and improvements to any real property in
which the Company has a leasehold interest used in the conduct of the Business.

         (b) Personal Assets. All tangible personal property, including without
limitation, all equipment, materials, dialysis machines, dialysis chairs, home
dialysis equipment, computers and related hardware, telecopy and photocopy
machines and telecommunications equipment used in the conduct of the Business as
more particularly described in Part 4.5(a) of the Disclosure Schedule.

         (c) Inventory. All inventory of usable goods, including all medical
supplies and other current assets used in the conduct of the Business, together
with any additions thereto 

                                      1.

 
and subject to any reductions therefrom received, ordered or in transit by the
Company operating the Business in the ordinary course after the date hereof
through the Closing Date.

         (d) Proprietary Rights. All Proprietary Rights used in the conduct of
the Business.

         (e) Goodwill. All of the goodwill of the Business.

         (f) Contracts. All contracts, contractual rights, and other written
agreements of the Company, including, without limitation, all payor agreements,
supply agreements, medical director agreements, license agreements, consulting
agreements, real estate leases and acute dialysis service agreements used in the
conduct of the Business (the "Assumed Contracts").

         (g) Licenses; Permits. To the extent permitted by Law, all licenses,
permits, certificates and approvals of the Company used in the conduct of the
Business. The Company agrees to use commercially reasonable efforts to cause any
license, permits, certificates or approvals assignable with the consent of a
Governmental Entity to be assigned to the Purchaser before the Closing Date,
and, if not assigned or transferred by the Closing Date, to be assigned or
transferred thereafter.

         Section 1.2 Assumed Contracts. To the extent that any Assumed Contract
for which assignment is provided herein is not assignable without the consent of
another party, this Agreement shall not constitute an assignment or an attempted
assignment thereof if such assignment or attempted assignment would constitute a
breach thereof. The Company and the Purchaser agree to use commercially
reasonable efforts (without any requirement on the part of the Purchaser or the
Company to pay any money or agree to any change in the terms of any such Assumed
Contract) to obtain the consent of such other party to the assignment of any
such Assumed Contract to the Purchaser in all cases in which such consent is or
may be required for such assignment. If any such consent shall not be obtained,
the Company agrees to cooperate with the Purchaser in any reasonable arrangement
designed to provide for the Purchaser the benefits intended to be assigned to
the Purchaser under the relevant Assumed Contract, including enforcement at the
cost and for the account of the Purchaser of any and all rights of the Company
against the other party thereto arising out of the breach or cancellation
thereof by such other party or otherwise. If and to the extent that such
arrangement cannot be made, the Purchaser, upon notice to the Company, shall
have no obligation pursuant to Section 2.1 or otherwise with respect to any such
Assumed Contract and any such Assumed Contract shall not be deemed to be a
Purchased Asset hereunder.

                                    ARTICLE 2
                           ASSUMPTION OF LIABILITIES.

         Section 2.1 Liabilities to be Assumed Subject to the terms and
conditions of this Agreement, on the Closing Date, the Purchaser shall assume
and agree to perform and discharge to the extent indicated below the following,
and only the following, specific liabilities and obligations of the Company
(collectively the "Assumed Liabilities"):

         (a) Contractual Liabilities. The Company's liabilities and obligations
arising from and after the Closing Date under and pursuant to the Assumed
Contracts.

                                      2.

 
         (b) Liabilities Under Permits and Licenses. The Company's obligations
arising from and after the Closing Date under any permits or licenses listed in
Part 4.10(b) of the Disclosure Schedule and assigned to the Purchaser at or
after the Closing.

         (c) H-S-R Filing. All fees incurred by the parties in connection with
the filing under the HSR Act.

         Section 2.2 Liabilities Not to be Assumed. Except as and to the extent
specifically set forth in Section 2.1, the Purchaser is not assuming any debts,
liabilities, obligations or contracts of the Company and all such debts,
liabilities, obligations and contracts shall be and remain the responsibility of
the Company.

                                    ARTICLE 3
                      PAYMENT OF PURCHASE PRICE; CLOSING.

         Section 3.1 Purchase Price. The purchase price (the "Purchase Price")
for the Purchased Assets shall be:

         (a) the assumption of the Assumed Liabilities;
plus
         (b) the sum of Six Million Seventy-Six Thousand Dollars
($6,076,000) in cash.

         Section 3.2 Payment of Purchase Price. The Purchase Price shall be paid
by the Purchaser as follows:

         (a) At the Closing, the Purchaser shall deliver to the Company such
documents and instruments as are reasonably required to evidence the assumption
of the Assumed Liabilities.

         (b) At the Closing, the Purchaser shall deliver to the Company in cash
the sum of the amount required to be paid in Section 3.1.(b).

         Section 3.3 Closing. The closing of the Acquisition (the "Closing") is
contemplated to take place on or before the Scheduled Closing Time, and shall
take place at the offices of Cooley Godward LLP, and shall occur within five (5)
days after the last to occur of, (a) approval of the Acquisition and the
transactions contemplated by the Agreement by the Office of the California
Attorney General, (b) the termination of the applicable waiting period under the
HSR Act, and (c) upon satisfaction of the conditions set forth herein, or at
such other place, time and/or date as may be jointly designated by the Company
and the Purchaser.

         Section 3.4 Items to be Delivered at the Closing by the Company. At the
Closing, the Company shall deliver or cause to be delivered to the
Purchaser:

         (a) Bill of Sale and Assignment, in substantially the form of Exhibit
B.

         (b) Instruments of transfer in the form customarily used in commercial
transactions in the area in which the personal property is located sufficient to
transfer each personal 

                                      3.

 
property interest owned by the Company not otherwise transferred by the Bill of
Sale referred to in Section 3.4(a).

         (c) Such other instruments of transfer necessary or
appropriate to transfer to and vest in the Purchaser all of the Company
right, title and interest in and to the Purchased Assets, including all
necessary consents of third parties.

         (d) The opinions, certificates, consents and other documents referred
to herein as then deliverable by the Company.

         (e) Noncompetition Agreement or Agreements,
substantially in the form of Exhibit C (the "Noncompetition Agreement").

         (f) The Company and the Purchaser shall complete and deliver a
statement of the allocation of purchase price in substantially the form of
Exhibit E.

         Section 3.5 Items to be Delivered at the Closing by the Purchaser. At
the Closing, the Purchaser shall deliver to the Company:

         (a) The cash portion of the Purchase Price.

         (b) An Assumption Agreement, in substantially the
form of Exhibit D.

         (c) The opinions, certificates, consents and other
documents referred to herein as then deliverable by the Purchaser.

         Section 3.6 Prorations. Except as otherwise set forth herein, at and as
of the Closing Date, the Purchaser and the Company shall proportionately
allocate (i) real property taxes and assessments for each of the Company's
dialysis facilities, (ii) rents and other payments, including, without
limitation, CAM charges, under the real property leases of the Company paid in
advance of the Closing Date, (iii) utility and sewer charges paid in advance of
the Closing Date, (iv) payments under the Assumed Contracts paid in advance of
the Closing Date and (v) fees for transferable licenses and permits. All
deposits under the Company's real property leases and all utilities and other
deposits shall be remitted to the Company, or in lieu of such remittance, the
amount of such deposits shall be added to the Purchase Price and paid over to
the Company by the Purchaser. In the event the parties are unable to
proportionately allocate such amounts and other operating expenses under this
Section 3.6, whether paid in advance or payable subsequent to the Closing, the
parties agree to pro rate such amounts as of the Closing Date. On the Closing
Date, or as soon as practicable thereafter, the Company and Purchaser shall
complete and deliver a statement of adjustments in substantially the form of
Exhibit F setting forth the various allocations described in this Section 3.6.
Any party owing funds to the other party shall remit such amounts as soon as
practicable, but in any event within 30 days after demand therefor.

                                    ARTICLE 4
                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY.

         Subject to the limitations set forth in Article 10 and elsewhere in
this Agreement, to the best of its Knowledge, the Company hereby represents and
warrants to the Purchaser that, except as set forth on the Disclosure Schedule,
the following are accurate in all material respects:

                                      4.

 
         Section 4.1 Formation and Existence. The Company is a limited liability
company duly formed, validly existing and in good standing under the laws of the
State of California. The Company has full power to carry on its business as now
being conducted and to own and operate the property and assets now owned and
operated by it, and is duly qualified to transact business and is in good
standing in each jurisdiction where the ownership of its properties or the
conduct of its business requires such qualification and the failure to be so
qualified will have a Material Adverse Effect.

         Section 4.2 Power and Authority. The Company has all requisite power
and authority to execute and deliver this Agreement and each other agreement,
document, or instrument or certificate contemplated by this Agreement to be
executed by the Company in connection with the consummation of the transactions
contemplated hereby (together with this Agreement, the "Acquisition Documents"),
and to consummate the transactions contemplated hereby and thereby. This
Agreement and each of the other Acquisition Documents will be at or prior to the
Closing, duly and validly authorized, executed and delivered by the Company and
(assuming the due authorization, execution and delivery by the other parties
hereto and thereto) this Agreement constitutes, and each of the other
Acquisition Documents when so executed and delivered will constitute, legal,
valid and binding obligations of the Company, enforceable against the Company in
accordance with their respective terms, subject to applicable bankruptcy,
insolvency, reorganization, moratorium and similar laws affecting creditors'
rights and remedies generally, and subject, as to enforceability, to general
principles of equity, including principles of commercial reasonableness, good
faith and fair dealing (regardless of whether enforcement is sought in a
proceeding at law or in equity).

         Section 4.3 Conflicts. The execution and delivery by the Company of
this Agreement and the other Acquisition Documents, the consummation of the
transactions contemplated hereby or thereby or compliance by the Company with
any of the provisions hereof or thereof (i) will not violate any provision of
the partnership agreement/operating agreement of the Company; (ii) subject to
obtaining the consents referred to in Part 4.3 of the Disclosure Schedule, will
not conflict with, violate, result in the breach or termination of, or
constitute a default under any note, bond, mortgage, indenture, license,
agreement or other instrument or obligation to which the Company is a party or
by which its properties or assets are bound; (iii) will not violate any statute,
rule, regulation, order or decree of any Governmental Entity by which the
Company is bound; or (iv) will not result in the creation of any encumbrance
upon the Purchased Assets except, in case of clauses (ii) and (iii), for such
conflicts, violations, breaches or defaults as will not have a Material Adverse
Effect.

         Section 4.4 Financial Statements. The Company has furnished the
Purchaser with the Financial Statements. Except as set forth therein, the
Financial Statements fairly present, in all material respects, the financial
condition and results of operations, as applicable, of the Company as of the
dates and for the periods indicated thereon prepared in accordance with GAAP;
provided, that the Unaudited Financial Statements are subject to normal
recurring year-end adjustments, none of which are reasonably expected to have a
Material Adverse Effect, and do not contain all footnotes required under GAAP.

         Section 4.5 Title to and Condition of Assets.

         (a) Marketable Title. The Company has good and merchantable title to
all of its tangible assets used in the operations of the Business ("Physical
Assets") or has valid leasehold interests in all leased real property and
Physical Assets listed thereon as leased by the Company, except such as shall
have been disposed of as obsolete or in the ordinary course of business since
the date of Part 4.5(a) of the Disclosure Schedule. At Closing, the Purchaser
shall receive good and merchantable title to the Purchased Assets free of any
Encumbrances except for Permitted Encumbrances.

                                      5.

 
         (b) Condition. All of the Physical Assets are in good operating
condition and repair, have been maintained consistent with the standards
generally followed in the industry and applicable legal standards.

         Section 4.6 Subsidiaries and Partnerships. Except as set forth on
Part 4.6 of the Disclosure Schedule, the Company has no subsidiaries or
investments in other corporations, partnerships or joint ventures.

         Section 4.7 Contracts. Part 4.7(a) of the Disclosure Schedule lists all
written agreements to which the Company is a party or to which the Company, or
any of its properties is subject or by which any thereof is bound that is deemed
a Material Contract under this Agreement. As used in this Agreement, the term
"Material Contract" shall mean each written agreement that (a) after December
31, 1996 obligates the Company to pay an amount of $50,000 or more, (b) has an
unexpired term as of the date hereof in excess of one year, (c) contains a
covenant not to compete or otherwise significantly restricts the Business of the
Company, (d) provides for the extension of credit, (e) limits the ability of the
Company to conduct its Business, including as to manner or place, (f)
constitutes a collective bargaining agreement or provides for severance benefits
to any officer, director or employee, (g) represents a written agreement with a
third party payor, including but not limited to a provider agreement under a
Medical Reimbursement Program, (h) represents a written agreement with a
physician who provides service to the Company, (i) involves the providing of
acute dialysis services, (j) provides for a leasehold in real property used in
the operations of the Business, or (k) was not made in the ordinary course of
business consistent with past practice. Part 4.7(a) of the Disclosure Schedule
also identifies each written agreement of the Company in which its officers or
directors (or any person, firm or corporation affiliated with such persons) have
a material interest. Except as set forth on Part 4.7(a) of the Disclosure
Schedule, each Material Contract is a legal, valid and binding agreement, and
none of the Material Contracts is in default by its terms or has been canceled
by the other party, and the Company has not received any claim of default under
any such Material Contract, except where such failure, default or claim of
default would not have a Material Adverse Effect. Part 4.7(b) of the Disclosure
Schedule lists as of the date hereof all of the agreements and contracts of the
Company used in the operation of the Business.

         Section 4.8 Proprietary Rights. Part 4.8 of the Disclosure Schedule
sets forth all patents, trademarks, trade names, service marks, copyrights, and
pending applications therefor, software (other than third-party "off-the-shelf"
software), and intellectual property and other proprietary rights, the loss of
which would reasonably be likely to have a Material Adverse Effect (the
"Proprietary Rights"). Except as disclosed on Part 4.8 of the Disclosure
Schedule, the Company is not bound by or a party to any options, licenses or
agreements of any kind with respect to the Proprietary Rights except those that
will not have a Material Adverse Effect. Except as disclosed on Part 4.8 of the
Disclosure Schedule, the Company has not been informed of any claims or suits
pending or threatened against the Company claiming an infringement by the
Company of any patents, copyrights, licenses, trademarks, service marks or trade
names of others.

         Section 4.9 Sufficiency of Purchased Assets. Except as set forth on
Part 4.9 of Disclosure Schedule, the Purchased Assets, both tangible and
intangible, are (and as of the Closing will be) sufficient for the operation of
the Business of the Company as currently conducted.

         Section 4.10 Compliance With Laws.

         (a) Compliance. The Company is in compliance with all laws, rules,
regulations, orders, judgments, ordinances or decrees of any Governmental Entity
applicable to the 

                                      6.

 
Business (collectively, "Laws") (including, without limitation, Laws in respect
of overpayments, refunds, discounts or adjustments in connection with Medical
Reimbursement Programs ("Overpayments")), the non-compliance with which would
have a Material Adverse Effect. Except as set forth in Part 4.10 of the
Disclosure Schedule the Company has not received notice of any violation or
alleged violation of, nor is the Company subject to any liability (whether
accrued, absolute, contingent, direct or indirect) for past or continuing
violation of, any Laws in connection with the Company's use of the Purchased
Assets which would have a Material Adverse Effect.

         (b) Licenses and Permits.

         (i) The Company has all licenses, permits, approvals, authorizations
and consents of all governmental and regulatory authorities and all
certification organizations required for the operation of the Business of the
Company as currently conducted. All such licenses, permits, approvals,
authorizations and consents are described in Part 4.10 of the Disclosure
Schedule, are in full force and effect and except as specifically indicated in
Part 4.10 of the Disclosure Schedule are assignable to the Purchaser in
accordance with the terms hereof.

         (ii) Except as set forth in Part 4.10 of the Disclosure Schedule, the
Company has been in compliance with all such permits and licenses, approvals,
authorizations and consents. The Company is not the subject of any actual or
threatened investigation of disciplinary action by the California Board of
Health, the Health Care Financing Administration ("HCFA"), California Department
of Health Services or the Office of Inspector General of the United States
Department of Health and Human Services.

         Section 4.11 Litigation. Except as set forth in Part 4.11 of the
Disclosure Schedule, there is no litigation, proceeding or investigation pending
or threatened, by or against the Company before any Governmental Entity that
would (i) prohibit or restrain the ability of the Company to enter into this
Agreement or to consummate the transactions contemplated hereby or (ii) have a
Material Adverse Effect.

         Section 4.12 Labor Matters. Part 4.12 of the Disclosure Schedule lists
the collective bargaining agreements or other labor union contracts and employee
benefit plans applicable to employees which are employed by the Company, and the
Company is as of the date of this Agreement in full compliance with the terms
and conditions of such agreements and contracts, except where the failure to be
in compliance would not have a Material Adverse Effect. Except as set forth on
Part 4.12 of the Disclosure Schedule (i) there are no charges or allegations of
unfair labor practices pending or threatened under Federal or state labor laws;
(ii) there are no pending arbitration matters or grievance procedures under any
of the agreements listed in Part 4.12 of the Disclosure Schedule; (iii) there
are no facts or conditions existing which upon the giving of notice, or lapse of
time, will result in a breach under any collective bargaining agreement or under
any of the other foregoing agreements, which will have a Material Adverse
Effect; and (iv) there is no pending or threatened labor dispute, strike or work
stoppage which will have a Material Adverse Effect.

         Section 4.13 Liabilities. Other than as set forth in Part 4.13 of the
Disclosure Schedule or as reflected in the Financial Statements, there are no
liabilities or contingent liabilities of a nature required to be reflected in
the Financial Statements or the notes thereto affecting any of the Purchased
Assets, except current liabilities incurred in the ordinary course of business
subsequent to the Statement Date which will not have a Material Adverse Effect.


                                      7.

 
         Section 4.14 Environmental. All applicable federal, state and local
laws relating to pollution, storage, releases or threatened releases of
pollutants, contaminants, chemicals or industrial, toxic, hazardous or
petroleum-based substances or wastes ("Waste") into the environment (including,
without limitation, ambient air, surface water, ground water, land surface or
subsurface strata) or otherwise relating to the manufacture, processing,
distribution, use, treatment, storage, disposal, transport or handling of Waste
including, without limitation, the Clean Water Act, the Clean Air Act, the
Resource Conservation and Recovery Act, the Toxic Substances Control Act and the
Comprehensive Environmental Response Compensation Liability Act ("CERCLA"), as
amended, and their state and local counterparts, are herein collectively
referred to as the "Environmental Laws." Except as set forth in Part 4.14 of the
Disclosure Schedule, the Company is in compliance in all material respects with
all limitations, restrictions, conditions, standards, prohibitions,
requirements, obligations, schedules and timetables contained in the
Environmental Laws. There is no civil, criminal or administrative action, suit,
demand, claim, hearing, notice of violation, official proceeding, notice or
demand letter pending or threatened against the Company relating in any way to
the Environmental Laws.

         Section 4.15 Brokers' Fees. Except for the consideration payable to
Hambrecht & Quist, which shall be the sole responsibility and obligation of the
Company, neither the Company nor any of the Subsidiaries has incurred any
liability for brokerage fees, finders' fees, agents' commissions or other
similar forms of compensation in connection with this Agreement and the
transactions contemplated hereby.

         Section 4.16 Required Filings and Consents. Except as set forth on Part
4.16 of the Disclosure Schedule, the execution and delivery of this Agreement by
the Company does not, and the performance of this Agreement by the Company will
not, require any consent, approval, authorization or permit of, or filing with
or notification to, any governmental or regulatory authority, domestic or
foreign, except where the failure to obtain such consents, approvals,
authorizations or permits, or to make such filings or notifications, will not
prevent the Company from performing its obligations under this Agreement, and
will not have a Material Adverse Effect.

         Section 4.17 Patients. Part 4.17 of the Disclosure Schedule lists, as
of the last treatment date prior to the date hereof, all Registered Patients (by
patient code) for which the Company provides either in-center treatment or home
dialysis support services. The Company makes no representation or warranty as to
which, if any, of the Registered Patients listed on Part 4.17 of the Disclosure
Schedule will continue to receive services from the Business subsequent to such
last treatment date.

         Section 4.18 Physicians. Part 4.18 of the Disclosure Schedule lists all
physicians or groups of physicians admitting patients to the Company's dialysis
facilities indicating the number of Registered Patients admitted by each such
physician or group of physicians. The Company makes no representation or
warranty as to which, if any, physicians listed on Part 4.18 of the Disclosure
Schedule will continue to admit or keep patients at the Company's dialysis
facilities subsequent to the date hereof.

         Section 4.19 Medicare Certification; State Licensure. Each of the
Company's dialysis facilities are certified under the conditions of coverage and
participation in the federal Medicare program as an end stage renal disease
facility providing the end stage renal disease services indicated on Part 4.19
of the Disclosure Schedule. The operating certificate issued by California
Department of Health Services and the Medicare certificates of the Company's
dialysis facilities are in full force and effect and no violation of the
conditions and standards of coverage, participation or certification exists.

                                      8.

 
         Section 4.20 Ownership. Part 4.20 of the Disclosure Schedule is a
complete and accurate list of all beneficial owners of an equity interest in the
Company, and, in the case of any beneficial owner who is not a natural person,
all beneficial owners of an equity interest therein.

         Section 4.21 Insurance. Except as set forth in Part 4.21 of the
Disclosure Schedule, for the five (5) year period prior to the date of this
Agreement, the Company has maintained adequate insurance for the Business and
the Purchased Assets with respect to risks normally insured against by similar
businesses.

                                    ARTICLE 5
                REPRESENTATIONS AND WARRANTIES OF THE PURCHASER.

         Subject to the limitations set forth in Article 10 and elsewhere in
this Agreement, to the best of its Knowledge, the Purchaser hereby represents
and warrants to the Company that the following are accurate in all material
respects:

         Section 5.1 Corporate Existence. The Purchaser is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation, with full corporate power to carry on its
business as now being conducted and to own and operate the property and assets
now owned and operated by it, and is duly qualified to transact business and is
in good standing in each jurisdiction where the ownership of its properties or
the conduct of its business requires such qualification and the failure to be so
qualified would have a material adverse effect on the business, operations or
financial condition of the Purchaser (a "Purchaser Material Adverse Effect").

         Section 5.2 Corporate Power and Authority. The Purchaser has all
requisite corporate power and authority to execute and deliver this Agreement
and the other Acquisition Documents and to consummate the transactions
contemplated hereby and thereby. All corporate action necessary to authorize the
execution, delivery and performance of this Agreement and each of the other
Acquisition Documents has been duly taken by the Purchaser. This Agreement has
been, and each of the Acquisition Documents will be at or prior to the Closing,
duly and validly executed and delivered by the Purchaser and (assuming the due
authorization, execution and delivery by the other parties hereto and thereto)
this Agreement constitutes, and each of the Acquisition Documents when so
executed and delivered will constitute, legal, valid and binding obligations of
the Purchaser, enforceable against the Purchaser in accordance with their
respective terms, subject to applicable bankruptcy, insolvency, reorganization,
moratorium and similar laws affecting creditors' rights and remedies generally,
and subject, as to enforceability, to general principles of equity, including
principles of commercial reasonableness, good faith and fair dealing (regardless
of whether enforcement is sought in a proceeding at law or in equity).

         Section 5.3 Conflicts. Neither the execution and delivery by the
Purchaser of this Agreement and the other Acquisition Documents, the
consummation of the transactions contemplated hereby or thereby, or compliance
by the Purchaser with any of the provisions hereof or thereof will (i) violate
any provision of the certificate of incorporation or bylaws of the Purchaser;
(ii) conflict with, violate, result in the breach or termination of, or
constitute a default under any note, bond, mortgage, indenture, license,
agreement or other instrument or obligation to which the Purchaser is a party or
by which its respective properties or assets are bound; or (iii) violate any
statute, rule, regulation, order or decree of any Governmental Entity by which
the Purchaser is bound except, in case of clauses (ii) and (iii), for such
conflicts, violations, breaches or defaults as will not have a Purchaser
Material Adverse Effect.

                                      9.

 
         Section 5.4 Litigation. There is no litigation, proceeding or
investigation pending or, to the Purchaser's knowledge, threatened, by or
against the Purchaser before any Governmental Entity that would prohibit or
restrain the ability of the Purchaser to enter into this Agreement or to
consummate the transactions contemplated hereby.

         Section 5.5 Brokers' Fees. The Purchaser has not incurred any liability
for brokerage fees, finders' fees, agents' commissions or other similar forms of
compensation in connection with this Agreement and the transactions
contemplated.

         Section 5.6 Financing. The Purchaser has available all of the funds
necessary to perform its obligations hereunder and under the other Acquisition
Documents.

         Section 5.7 Compliance With Laws. The Purchaser is in compliance with
all laws, regulations, orders, judgments, ordinances or decrees of any
Governmental Entity applicable to the business of the Purchaser, the
non-compliance with which would have a Purchaser Material Adverse Effect. The
Purchaser has not received notice of any violation or alleged violation of, nor
are any of them subject to any liability (whether accrued, absolute, contingent,
direct or indirect) for past or continuing violation of, any laws, regulations,
orders, judgments, ordinances or decrees of any Governmental Entity applicable
to the business of the Purchaser.

                                    ARTICLE 6
                   COVENANTS OF THE COMPANY AND THE PURCHASER.

         Section 6.1 Company Covenants. The Company covenants that from the date
of this Agreement until the Closing (the "Pre-Closing Period"):

         (a) Conduct of Business in Ordinary Course. Except as disclosed on Part
6.1(a) of the Disclosure Schedule or as contemplated
by this Agreement or any other Acquisition Document or as may be necessary to
carry out the transactions contemplated by this Agreement or any other
Acquisition Document, the Company will carry on its business in the ordinary
course, and it shall not make or institute any unusual or novel methods of
purchase, sale, lease, management, accounting or operation that will vary
materially from those methods used by it prior to the date of this Agreement.
The Company will not sell, lease or dispose of, or agree to sell, lease or
dispose of, any of the assets or properties of the Company other than in the
ordinary course of business, or pursuant to any existing plan, agreement or
practice. The Company will carry on its business diligently and in the same
manner as heretofore and will continue to see patients and will not make or
institute any adverse changes in its method of purchase, medical treatment,
management, accounting or operation.

         (b) Preservation of Business and Relationships. The Company will use
commercially reasonable efforts to preserve its business intact and to maintain
its present material relationships with patients, creditors, suppliers, lessors,
licensors, employees and others having business relationships with it or them.

         (c) The Purchaser's Access to Premises and Information. The Purchaser
and its Associates shall have reasonable access during normal business hours to
all properties, books, accounts, records, contracts and documents of or relating
to the Company.

         (d) Governmental Approvals. The Company shall cooperate with the
Purchaser (i) in promptly determining whether any governmental approvals,
authorizations, licenses, 


                                      10.

 
permits, consents, or other filings are required to be or should obtained under
any federal, state or local law and (ii) in promptly applying for or submitting
any such governmental approvals, authorizations, licenses, permits, consents, or
other filings, furnishing information required in connection therewith and
seeking timely to obtain such. The Company will make any and all filings
required to be made on its part under the HSR Act.

         (e) Employees; Employee Benefits Matters. The Company shall fully
compensate its employees for any accrued vacation pay through the effectiveness
of the Closing. The Company shall cause interests of Assumed Employees of the
Company in its 401(k) plan to become distributable pursuant to Internal Revenue
Code Section 401(k)(10)(A) and any amounts distributed to such employees may be
rolled over pursuant to Internal Revenue Code Section 402 to a comparable plan
maintained by the Purchaser.

         (f) No Negotiation. The Company shall ensure that, during the
Pre-Closing Period, neither the Company, the Owners nor any of the Company's
Representatives directly or indirectly:

              (i) solicits or encourages the initiation of any inquiry,
proposal or offer from any Person (other than the Purchaser) relating to any
Acquisition Transaction; or

              (ii) subject to Section 11.3, participates in any discussions or
negotiations with, or provides any non-public information to, any Person (other
than the Purchaser) relating to any Acquisition Transaction.

         (g) Medical Director Agreements. The Company will use commercially
reasonable efforts to (i) extend existing medical director agreements of the
Company for a period of seven (7) years from the date hereof; (ii) assign to
Purchaser all existing medical director agreements of the Company; and (iii)
eliminate those provisions of each such agreement as they relate to the
transfers of patients.

         (h) Consents; Real Property Leases. The Company will use commercially
reasonable efforts to obtain all consents required to be obtained (from
creditors, licensors, lessors and other Persons) in connection with the
transactions contemplated hereby, including, without limitation, consents to the
assignment of the Company's acute dialysis services agreements and the Company's
real property leases. In each instance in which (i) the term of any of the
Company's real property leases does not extend for, or (ii) extension options
under such leases do not provide for, a remaining term of at least seven (7)
years from the date hereof, the Company will use commercially reasonable efforts
to extend the remaining terms of such leases for a minimum of seven (7) years
from the date hereof.

         (i) Cooperation. The Company shall cooperate fully with the Purchaser,
and shall provide the Purchaser with such assistance as the Purchaser may
reasonably request, for the purpose of facilitating the performance by the
Purchaser of its obligations under this Agreement and the Acquisition Documents.

         (j) Conditions. The Company shall use commercially
reasonable efforts to ensure that the conditions required to be satisfied
on the part of the Company are satisfied on a timely basis.

                                      11.

 
         (k) Confidentiality. The Company shall continue to be bound by its
obligations under the Nondisclosure Agreement.

         Section 6.2 Purchaser Covenants. The Purchaser covenants during the
Pre-Closing Period:

         (a) Certain Filings. The Purchaser will make any and all filings
required to be made on its part under the HSR Act. The
Company and the Purchaser shall furnish each other such necessary information
and reasonable assistance as the other may request in connection with its
preparation of necessary filings or submissions under the provisions of such
laws.

         (b) Sales Taxes. The Purchaser shall pay all real and personal property
transfer taxes and fees, if any, sales taxes, if any, and all use, gross receipt
or documentary taxes and other similar taxes, if any, imposed on or in
connection with the purchase, sale or transfer of the Purchased Assets to, and
the assumption of the Assumed Liabilities by, the Purchaser pursuant to this
Agreement. The Purchaser shall promptly reimburse the Company for any such taxes
and fees which, under applicable law, are imposed upon the Company.

         (c) Cooperation. The Purchaser shall cooperate fully with the Company,
and shall provide the Company with such assistance as the Company may reasonably
request, for the purpose of facilitating the performance by the Company of its
obligations under this Agreement and the Acquisition Documents.

         (d) Governmental Approvals. The Purchaser shall cooperate with the
Company (i) in promptly determining whether any governmental approvals,
authorizations, licenses, permits, consents, or other filings are required to be
or should obtained under any federal, state or local law and (ii) in promptly
applying for or submitting any such governmental approvals, authorizations,
licenses, permits, consents, or other filings, furnishing information required
in connection therewith and seeking timely to obtain such.

         (e) Employees. The Purchaser will offer employment to those current
employees of the Company (as of the Closing Date) working in the Business whose
names and positions are set forth on Schedule 6.2(e) (the "Assumed Employees").
The Purchaser will pay the Assumed Employees at wage rates competitive in the
dialysis industry within the region in which the Company operates and will
provide benefits under standard Purchaser benefit plans which shall be
comparable to those provided to the other Purchaser employees (including
healthcare benefits which do not contain any exclusions or waiting periods for
pre-existing conditions with respect to Assumed Employees' initial enrollment).
This Section 6.2(e) in no way constitutes an employment agreement between
Purchaser and the Assumed Employees as such Assumed Employees shall be employed
by the Purchaser on an "at will" basis. The Purchaser disclaims any commitment
to employ such Assumed Employees for any specific period.

         (f) Investigation. In conducting its investigation of the business,
operations and legal affairs of the Company, the Purchaser shall use its best
efforts not to interfere in any manner with the business or operations of the
Company or with the performance of any of the Company's employees.

         (g) Conditions. The Purchaser shall use commercially
reasonable efforts to ensure that the conditions required to be
satisfied on the part of the Purchaser are satisfied on a timely basis.

                                      12.

 
         (h) Confidentiality. The Purchaser shall continue to be bound by its
obligations under the Nondisclosure Agreement.

                                    ARTICLE 7
                 CONDITIONS TO OBLIGATION OF PURCHASER TO CLOSE.

         The obligation of the Purchaser to purchase the Purchased Assets and
otherwise consummate the transactions that are to be consummated at the Closing
is subject to the satisfaction, as of the Scheduled Closing Time and as of the
Closing Date, of the following conditions (any of which may be waived by the
Purchaser in whole or in part):

         Section 7.1 Accuracy of Representations and Warranties. The
representations and warranties of the Company set forth in Article 4 shall be
accurate in all material respects as of the Scheduled Closing Time and as of the
Closing Date, except to the extent that (a) any of such representations and
warranties refers specifically to a date other than the Scheduled Closing Time
or the Closing Date in which event such representation and warranty shall be
accurate as of such date, (b) the accuracy of any of such representations and
warranties is affected by any of the transactions contemplated by this Agreement
or the Acquisition Documents, and (c) any such representation and warranty is
modified in a Disclosure Schedule revised as of the Closing Date (which
Disclosure Schedule shall be accurate as of the Closing Date) delivered to the
Purchaser at least five calendar days prior to the Scheduled Closing Time, to
which modifications the Purchaser shall have been deemed to have consented;
provided the facts or circumstances described or referred to in such
modifications have not had nor would reasonably be expected to have a Material
Adverse Effect.

         Section 7.2 Performance. The Company shall have performed, in all
material respects, all obligations required under this Agreement and the
Acquisition Documents to be performed by the Company on or before the Closing
Date.

         Section 7.3 Governmental Consents. The Company shall have received all
other consents, approvals, authorizations and waivers required to be obtained by
the Company from all Governmental Entities with jurisdiction over the Company in
connection with the transactions contemplated by this Agreement and the
Acquisition Documents and the operation of the Purchased Assets, except where
failure to obtain such consents, approvals, authorizations or waivers will not
have a Material Adverse Effect.

         Section 7.4 Third Party Consents. To the extent permitted by Law, the
Purchaser shall have received all other consents, approvals, authorizations and
waivers from Persons necessary to the assignment and transfer of the Purchased
Assets set forth in Schedule 7.4, except where failure to obtain such consents,
approval, authorizations or waivers will not have a Material Adverse Effect.
Notwithstanding the foregoing, (i) the Company shall have obtained the consent
to the assignment of the Company's real property leases to the Purchaser from
each of the lessors under such leases, and (ii) the Company shall have obtained
the consents necessary to (a) the assignment of all of the Company's medical
director agreements to Purchaser, (b) the extension for a period of seven (7)
years from the date hereof of the terms of the Company's medical director
agreements in a manner mutually acceptable to the Company and the Purchaser with
the following Person: Michael E. Arquilla, M.D., and (c) the elimination of
those provisions from such medical director agreements as they relate to the
transfer of patients.

                                      13.

 
         Section 7.5 Additional Documents. The Purchaser shall have received the
following documents:

         (a) an opinion letter from Bruce Voss, Esq., dated the Closing Date, in
a form reasonably acceptable to the Purchaser;

         (b) each of the Acquisition Documents shall have been executed and
delivered by the parties thereto; and

         (c) such other documents as the Purchaser may reasonably request in
good faith for the purpose of (i) evidencing the accuracy of any representation
or warranty made by the Company, (ii) evidencing the compliance by the Company
with, or the performance by the Company of, any covenant or obligation set forth
in this Agreement or any of the Acquisition Documents, (iii) evidencing the
satisfaction of any condition set forth in this Section 7, or (iv) otherwise
facilitating the consummation or performance of any of the transactions
contemplated by this Agreement or any of the Acquisition Documents.

         Section 7.6 No Injunction. There shall not be in effect, at the
Closing, any injunction or other binding order of any Governmental Entity having
jurisdiction over the Purchaser that prohibits the consummation of the
transactions contemplated by this Agreement and the Acquisition Documents.

                                    ARTICLE 8
                CONDITIONS TO OBLIGATION OF THE COMPANY TO CLOSE.

         The obligation of the Company to sell the Purchased Assets to the
Purchaser and otherwise consummate the transactions that are to be consummated
at the Closing is subject to the satisfaction, as of the Scheduled Closing Time
and as of the Closing Date, of the following conditions (any of which may be
waived by the Company in whole or in part):

         Section 8.1 Accuracy of Representations and Warranties. The
representations and warranties of the Purchaser set forth in Section 5 shall be
accurate in all material respects as of the Scheduled Closing Time and as of the
Closing Date.

         Section 8.2 Performance. The Purchaser shall have performed, in all
material respects, all obligations required by this Agreement and the
Acquisition Documents to be performed by the Purchaser on or before the Closing
Date.

         Section 8.3 No Injunction. There shall not be in effect, at the
Closing, any injunction or other binding order of any Governmental Entity having
jurisdiction over the Company that prohibits the consummation of the
transactions contemplated by this Agreement and the Acquisition Documents.

         Section 8.4 Equityholder Approval; Attorney General Consent. The
Company shall have received the consent and approval of the Owners to the
transactions contemplated by this Agreement and the Acquisition Documents, and
Satellite Dialysis Centers, Inc. shall have received written notification from
the Office of the California Attorney General that it does not oppose or object
to the participation by Satellite Dialysis Centers, Inc. in the Acquisition and
the transactions contemplated by the Agreement. In the case of Satellite
Dialysis Centers, Inc. (in its capacity as an Owner and not as Agent), it is
expressly understood and agreed that its consent and approval is subject to the
fiduciary obligations of its board of trustees consistent with its charitable
purpose. The parties agree that such consent and approval by the 

                                      14.

 
board of trustees and receipt of approval from the Office of the California
Attorney General may only be waived by Satellite Dialysis Centers, Inc. in its
sole and absolute discretion.

         Section 8.5 Governmental Consents. To the extent permitted by Law, the
Company shall have received all other consents, approvals, authorizations and
waivers required to be obtained from all federal, state, municipal and other
governmental authorities with jurisdiction over the Company in connection with,
and as a condition to, the transactions contemplated by this Agreement and the
Acquisition Documents and the operation of the Purchased Assets, except where
failure to obtain such consents, approvals, authorizations or waivers will not
have a Material Adverse Effect.

         Section 8.6 Third Party Consents. The Company shall have received all
other consents, approvals, authorizations and waivers from Persons necessary to
the assignment and transfer of the Purchased Assets, except where failure to
obtain such consents, approvals, authorizations or waivers will not have a
Material Adverse Effect.

         Section 8.7 Additional Documents. The Company shall have received the
following documents:

         (a) an opinion letter from Duane, Morris & Heckscher, dated the Closing
Date, in a form reasonably acceptable to the Company;

         (b) each of the Acquisition Documents shall have been executed and
delivered by the parties thereto; and

         (c) such other documents as the Company may reasonably request in good
faith for the purpose of (i) evidencing the accuracy of any representation or
warranty made by the Purchaser, (ii) evidencing the compliance by the Purchaser
with, or the performance by the Purchaser of, any covenant or obligation set
forth in this Agreement or any of the Acquisition Documents, (iii) evidencing
the satisfaction of any condition set forth in this Section 8, or (iv) otherwise
facilitating the consummation or performance of any of the transactions
contemplated by this Agreement or any of the Acquisition Documents.

                                    ARTICLE 9
                            TERMINATION OF AGREEMENT.

         Section 9.1 Right to Terminate Agreement. This Agreement may be
terminated prior to the Closing:

         (a) by the mutual agreement of the Company and the Purchaser;

         (b) by the Purchaser at any time after the Termination Date, if any
condition set forth in Section 7 shall not have been satisfied or waived; or

         (c) by the Company at any time after the Termination Date, if any
condition set forth in Section 8 shall not have been
satisfied or waived.

         Section 9.2 Effect of Termination. Upon the termination of this
Agreement pursuant to Section 9.1:

                                      15.

 
         (a) The Purchaser shall promptly cause to be returned to the Company
all documents and information obtained in connection with this Agreement and the
transactions contemplated by this Agreement and all documents and information
obtained in connection with the Purchaser's investigation of the Company's
business, operations and legal affairs, including any copies made by the
Purchaser or any of the Purchaser's Associates of any such documents or
information; and

         (b) neither party hereto shall have any obligation or liability to the
other party hereto, except that (i) the Purchaser and the Company shall have the
obligations set forth in the Memorandum, and (ii) the Purchaser and the Company
shall remain bound by the provisions of the Nondisclosure Agreement, this
Section 9.2 and Article 11.

                                   ARTICLE 10
                      INDEMNIFICATION AND RELATED MATTERS.

         Section 10.1 Indemnification by the Company. Subject to the limitations
set forth in this Article 10 and elsewhere in this Agreement, the Company shall
indemnify the Purchaser against any Damages that the Purchaser actually incurs
during the one-year period commencing on the Closing Date which arise from,
occur as a result of or in connection with (a) any breach by the Company of any
representation, warranty or covenant of the Company set forth in this Agreement
or any of the Acquisition Documents or (b) any liability that arises from or
relates to (i) the Excluded Assets or (ii) the Excluded Liabilities.

         Section 10.2 Indemnification by the Purchaser. Subject to the
limitations set forth in this Article 10 and elsewhere in this Agreement, the
Purchaser shall indemnify the Company and the Owners against any Damages that
the Company actually incurs during the one-year period commencing on the Closing
Date which arise from, occur as a result of or in connection with (a) any breach
by the Purchaser of any representation, warranty or covenant of the Purchaser
set forth in this Agreement or any of the Acquisition Documents, or (b) any
liability that arises from or relates to (i) the operation of the Purchased
Assets after the Closing, and (ii) the Assumed Liabilities.

         Section 10.3 Expiration of Representations, Warranties and Covenants.
Except for the covenants set forth in Section 6.2(b) (sales taxes), the
covenants set forth in Article 6 shall terminate and expire, and shall cease to
be of any force or effect, on the Closing Date, and all liability of the parties
hereto with respect to such covenants shall thereupon be extinguished. Except as
set forth in the immediately preceding sentence, all of the representations,
warranties, covenants and obligations of the Company and the Purchaser set forth
in this Agreement and any of the Acquisition Documents shall terminate and
expire, and shall cease to be of any force or effect, at 2:00 p.m. (California
time) on the first anniversary of the Closing Date, and all liability of the
Company or the Purchaser with respect thereto (including their respective
obligations under Section 10.1 or Section 10.2, as the case may be) shall
thereupon be extinguished; provided, that if, prior to such first anniversary,
either party shall have duly delivered a Claim Notice in conformity with all of
the applicable procedures set forth in Section 10.8, then the specific
indemnification claim set forth in such Claim Notice shall survive such first
anniversary (and shall not be extinguished thereby).

         Section 10.4 Deductible Amount. Without limiting the effect of any of
the other limitations set forth herein, neither the Purchaser nor the Company
shall be required to make any indemnification payment hereunder with respect to
any breach of any of their respective representations, warranties, covenants and
obligations, except to the extent that the cumulative amount of the Damages
actually incurred by the party to be indemnified as a result of all such
breaches of such representations, warranties, covenants and 

                                      16.

 
obligations actually exceeds the Deductible Amount; and each party hereto shall
only be required to pay, and shall only be liable for, the amount by which the
cumulative amount of the Damages actually incurred by the party to be
indemnified as a result of all such breaches of such representations,
warranties, covenants and obligations actually exceeds the Deductible Amount.
The "Deductible Amount" shall be an amount equal to one-half percent (0.5%) of
the Purchase Price. Notwithstanding the foregoing, claims for indemnification
relating to (i) the Excluded Liabilities (including, without limitation, taxes
of the Company described in such definition and Overpayments) and (ii) (a) the
Assumed Liabilities and (b) the operation of the Purchased Assets after the
Closing, shall not be subject to the Deductible Amount.

         Section 10.5 Maximum Liability. The total amount of the payments that
either the Company or the Purchaser, as the case may be, shall be required to
make under or in connection with this Agreement or any of the Acquisition
Documents pursuant to such party's indemnification obligations shall be limited
in the aggregate to a maximum of ten percent (10%) of the Purchase Price, and
neither party's respective cumulative liability shall exceed such amount.

         Section 10.6 Knowledge of Breach. For purposes of this Article 10, 
neither party hereto shall be deemed to have breached any representation or 
warranty if the other party had, on or prior to the Closing Date, Knowledge of 
the breach of, or of any facts or circumstances constituting or resulting in a 
breach of, such representation or warranty.

         Section 10.7 No Implied Representations. The Purchaser and the Company
acknowledge that, except as expressly provided in Articles 4 and 5, neither
party hereto, and none of the Associates of either party hereto, has made or is
making any representations or warranties whatsoever, implied or otherwise.

         Section 10.8 Indemnification Claims. If either party hereto (the
"Claimant") wishes to assert an indemnification claim against the other party
hereto, the Claimant shall deliver to the other party a written notice (a "Claim
Notice") setting forth:

         (a) the specific representation, warranty or covenant alleged to have
been breached by such other party, or the specific liability to have been
incurred;

         (b) a detailed description of the facts and circumstances giving rise
to the alleged breach of such representation, warranty or covenant, or
incurrence of such liability; and

         (c) a detailed description of, and a reasonable estimate of the total
amount of, the Damages actually incurred or expected to be incurred by the
Claimant as a direct result of such alleged breach.

Notwithstanding anything to the contrary contained in this Agreement, Claimant
shall not be permitted to deliver any Claim Notice to the other party (and shall
not be entitled to assert any indemnification claim set forth in any Claim
Notice) unless:

              (i) the indemnification claim set forth in such Claim Notice 
shall have arisen from a bona fide lawsuit or other bona fide legal proceeding
that was instituted by a third party against Claimant or the Company prior to
the delivery of such Claim Notice to the other party; or

              (ii) Claimant shall have provided evidence in reasonable detail
demonstrating to the other party, before the delivery of such Claim Notice, that
Claimant has therefore actually incurred, or is reasonably likely to incur,
Damages as a result of the alleged breach described in such Claim Notice.


                                      17.

 
Any Claim Notice that is delivered to the Purchaser or the Company in
contravention of the prohibition set forth in the preceding sentence shall be
deemed not to have been "duly delivered" for purposes of Section 10.3 and shall
be of no force or effect.

         Section 10.9 Defense of Third Party Actions. If either party hereto
(the "Indemnitee") receives notice or otherwise obtains knowledge of any Matter
or any threatened Matter that may give rise to an indemnification claim against
the other party hereto (the "Indemnifying Party"), then the Indemnitee shall
promptly deliver to the Indemnifying Party a written notice describing such
Matter in reasonable detail; provided, that for the sole purpose of determining
whether a Matter or threatened Matter may give rise to an indemnification claim
against the Indemnifying Party within the meaning of this sentence, the
limitation set forth in Section 10.4 shall not be taken into account. The timely
delivery of such written notice by the Indemnitee to the Indemnifying Party
shall be a condition precedent to any liability on the part of the Indemnifying
Party under this Section 10 with respect to such Matter. The Indemnifying Party
shall have the right, at its option, to assume the defense of any such Matter
with its own counsel reasonably satisfactory to the Indemnitee. If the
Indemnifying Party elects to assume the defense of any such Matter, then:

         (a) notwithstanding anything to the contrary contained in this
Agreement, the Indemnifying Party shall not be required to pay
or otherwise indemnify the Indemnitee against any attorneys' fees or other
expenses incurred on behalf of the Indemnitee in connection with such Matter
following the Indemnifying Party's election to assume the defense of such
Matter;

         (b) the Indemnitee shall make available to the Indemnifying Party all
books, records and other documents and materials that are under the direct or
indirect control of the Indemnitee and that the Indemnifying Party considers
necessary or desirable for the defense of such Matter;

         (c) the Indemnitee shall fully cooperate as reasonably requested by the
Indemnifying Party in the defense of such Matter and execute such documents and
take such other actions as the Indemnifying Party may reasonably request for the
purpose of facilitating the defense of, or any settlement, compromise or
adjustment relating to, such Matter;

         (d) the Indemnitee shall not admit any liability with respect to such
Matter; and

         (e) the Indemnifying Party shall not settle, adjust or compromise such
Matter without the prior written consent or approval of the Indemnitee.

If the Indemnifying Party elects not to assume the defense of such Matter, then
the Indemnitee shall proceed diligently to defend such Matter with the
assistance of counsel satisfactory to the Indemnifying Party; provided, that the
Indemnitee shall not settle, adjust or compromise such Matter, or admit any
liability with respect to such Matter, without the prior written consent of the
Indemnifying Party.

         Section 10.10 Subrogation. To the extent that either party hereto (the
"Indemnitor") makes or is required to make any indemnification payment to the
other party hereto (the "Indemnified Party"), the Indemnitor shall be entitled
to exercise, and shall be subrogated to, any rights and remedies (including
rights of indemnity, rights of contribution and other rights of recovery) that
the Indemnified Party or any of the Indemnified Party's Associates may have
against any other Person with respect to any Damages, circumstances or Matter to
which such indemnification payment is directly or indirectly related. The
Indemnified Party shall permit the Indemnitor to use the name of the Indemnified
Party and the names of 

                                      18.

 
the Indemnified Party's Associates in any transaction or in any proceeding or
other Matter involving any of such rights or remedies; and the Indemnified Party
shall take such actions as the Indemnitor may reasonably request for the purpose
of enabling the Indemnitor to perfect or exercise the Indemnitor's right of
subrogation hereunder.

         Section 10.11 Exclusivity. The right of each party hereto to assert
indemnification claims and receive indemnification payments pursuant to this
Article 10 shall be the sole and exclusive right and remedy exercisable by such
party with respect to any breach by the other party hereto of any
representation, warranty, covenant or obligation. Without limiting the
generality of the foregoing, no Indemnitee shall have the right to withhold and
deduct any sum that may be owed to such Indemnitee from any amount otherwise
payable by such Indemnitee to the Indemnifying Party.

         Section 10.12 Accounts Receivable. In the event the Company receives
any payment that relates to accounts receivable generated from services rendered
by the Business after the Closing Date, the Company shall promptly transmit
these funds to the Purchaser. In the event the Purchaser receives any payment
that related to accounts receivable generated from services rendered by the
Business on or before the Closing Date, the Purchaser shall promptly transmit
these funds to the Company.

         Section 10.13 Tax Matters. Each party will provide the other such
assistance as may reasonably be requested in connection with the preparation of
any reimbursement-related audit, any tax return, any audit or other examination
by any taxing authority, or any judicial or administrative proceedings relating
to liability for taxes, and each will retain and provide the other with any
records or information which may be relevant to such return, audit or
examination, proceedings or determination. The party requesting assistance
hereunder shall reimburse the other party for reasonable expenses incurred in
providing such assistance. Any information obtained pursuant to this Section or
pursuant to any other Section hereof providing for the sharing of information or
the review of any tax return or other schedule relating to taxes shall be kept
confidential by the Parties and not disclosed to any Person.

         Section 10.14 Tail Insurance. The Company shall use commercially
reasonable efforts to maintain in force and effect for five years from the
Closing Date the Tail Insurance Coverage relating back five years from the
Closing Date. The "Tail Insurance Coverage" shall be health care services
professional liability coverage with The Doctors Company or such other
financially sound and reputable insurance company or association selected by the
Company with limits of liability of $1,000,000 per loss.

                                   ARTICLE 11
                            MISCELLANEOUS PROVISIONS.

         Section 11.1 Time of Essence. Time is of the essence with respect to
this Agreement.

         Section 11.2 Compliance with Laws. Each party shall execute such
agreements and other documents, and shall take such other actions, as the other
may reasonably request (prior to, at or after the Closing) for the purpose of
ensuring that the transactions contemplated by this Agreement are carried out in
full compliance with the provisions of all applicable laws and regulations.

         Section 11.3 Publicity. No press release, notice to any third party or
other publicity concerning the transactions contemplated by this Agreement or
any of the Acquisition Documents shall be issued, given or otherwise
disseminated without the prior written consent of the Agent and the Purchaser,
which will not be unreasonably withheld or delayed; provided, that (a) without
the approval of the Purchaser, the Agent 

                                      19.

 
shall be entitled to make disclosures regarding the transactions contemplated
hereby (i) to the Office of the California Attorney General and (ii) as may be
necessary to effect the transactions contemplated hereby, and (b) either party
may make such disclosures as may be contemplated herein or as may be and to the
extent required by applicable law.

         Section 11.4 Access of the Company to Books and Records. At all times
after the Closing Date, the Purchaser shall give the Company and the Company's
Associates reasonable access to the books and records of the Company to inspect
and copy such books and records.

         Section 11.5 Governing Law. This Agreement shall be construed in
accordance with, and governed in all respects by, the laws of the State of
California (without giving effect to principles of conflicts of law).

         Section 11.6 Venue and Jurisdiction. If any legal proceeding or other
legal action relating to this Agreement is brought or otherwise initiated, the
venue therefor shall be in San Francisco, California, which shall be deemed to
be a convenient forum. The Purchaser and the Company hereby expressly and
irrevocably consent and submit to the jurisdiction of the courts in San
Francisco, California.

         Section 11.7 Notices. All notices, consents and other communications
under this Agreement shall be in writing and shall be deemed to have been duly
given and duly delivered when (i) delivered by hand or (ii) when received by the
addressee, if sent by certified mail, return receipt requested, by Express Mail,
Federal Express or other express delivery service (receipt requested), in each
case, at the appropriate addresses as set forth below (or to such other address
as a party may designate as to itself by notice to the other parties):

         if to the Purchaser:

                     Renal Treatment Centers - California, Inc.
                     1180 W. Swedesford Road, Bldg. 2, Ste. 300
                     Berwyn, PA 19312
                     Attention:   Thomas J. Karl
                                  Vice President, Secretary and General Counsel

         with a copy (not constituting notice) to:

                     Duane, Morris & Heckscher
                     4200 One Liberty Place
                     Philadelphia, PA 19103
                     Attention:   Jeffrey S. Henderson, Esq.

         if to the Company:

                     California Kidney Centers, Orange, LLC
                     1310 W. Steward Drive, Suite 206
                     Orange, CA  92868
                     Attention:  Michael Arquilla, M.D.

                                      20.

 
         with a copy (not constituting notice) to:

                     Micro Optics
                     23 Mauchly, Suite 100
                     Irvine, CA 92618 
                     Bruce Voss, Esq.

                     Satellite Dialysis Centers, Inc.
                     345 Convention Way, Suite B
                     Redwood City, CA 94063-1402
                     Attention:   Marc Branson
                                  Chief Financial Officer
                     and

                     Cooley Godward LLP
                     Five Palo Alto Square
                     3000 El Camino Real
                     Palo Alto, CA  94306-2155
                     Attention:   Brian C. Cunningham

         Section 11.8 Table of Contents and Headings. The table of contents of
this Agreement and the underlined headings contained in this Agreement are for
convenience of reference only, shall not be deemed to be a part of this
Agreement and shall not be referred to in connection with the construction or
interpretation of this Agreement.

         Section 11.9 Assignment. Neither party hereto may assign any of its
rights or delegate any of its obligations under this Agreement to any other
Person without the prior written consent of the other party hereto; provided,
that the Company may, prior to or after the Closing, assign to any Person its
right to receive all or any portion of the amount payable to the Company under
Section 3.1.

         Section 11.10 Parties in Interest. Nothing in this Agreement is
intended to provide any rights or remedies to any Person (including any employee
or creditor of the Company) other than the parties hereto.

         Section 11.11 Severability. In the event that any provision of this
Agreement, or the application of such provision to any Person or set of
circumstances, shall be determined to be invalid, unlawful, void or
unenforceable to any extent, the remainder of this Agreement, and the
application of such provision to Persons or circumstances other than those as to
which it is determined to be invalid, unlawful, void or unenforceable, shall not
be affected and shall continue to be valid and enforceable to the fullest extent
permitted by law.

         Section 11.12 Entire Agreement. This Agreement, the Memorandum, the
other Acquisition Documents and the Nondisclosure Agreement set forth the entire
understanding of the Purchaser and the Company and supersede all other
agreements and understandings between the Purchaser and the Company relating to
the subject matter hereof and thereof.

         Section 11.13 Expenses. Each of the parties shall be responsible for
and pay all costs and expenses that it incurs with respect to the negotiation,
execution, delivery and performance of this Agreement.

                                      21.

 
         Section 11.14 Waiver. No failure on the part of either party hereto to
exercise any power, right, privilege or remedy under this Agreement, and no
delay on the part of either party hereto in exercising any power, right,
privilege or remedy under this Agreement, shall operate as a waiver thereof; and
no single or partial exercise of any such power, right, privilege or remedy
shall preclude any other or further exercise thereof or of any other power,
right, privilege or remedy.

         Section 11.15 Amendments. This Agreement may not be amended, modified,
altered or supplemented except by means of a written instrument executed on
behalf of both the Purchaser and the Company.

         Section 11.16 Counterparts. This Agreement may be executed in one or
more counterparts, each of which will be deemed to be as original and all of
which, when taken together, will be deemed to constitute one and the same.

         Section 11.17 Waiver of Bulk Transfer Laws. To the extent applicable,
the Purchaser and the Company waive compliance with the provisions of Division 6
of the Uniform Commercial Code of the State of California and the provisions of
any other applicable laws relating to bulk transfers of assets.

         Section 11.18 Post-Signing Procedure. The parties are executing this
agreement in advance of finalizing the terms of one or more Exhibits, prior to
the delivery of certain parts of the Disclosure Schedule that may qualify the
representations and warranties herein set forth, and prior to the Purchaser's
completion and analysis of its due diligence investigation.

         (a) The Company shall be responsible for preparing all Parts of the
Disclosure Schedule other than as specifically agreed. The Company shall deliver
a proposed Disclosure Schedule for review by the Purchaser within seven (7) days
of the date of this Agreement. The Disclosure Schedule shall be deemed accepted
by the Purchaser within five (5) business days after delivery thereof unless the
Purchaser notifies the Company of any objections. If the Purchaser determines in
good faith that the Disclosure Schedule reveals information that had not been
previously known by or disclosed to the Purchaser, and would have in the
Purchaser's reasonable judgment a Material Adverse Effect, then the Purchaser
will immediately notify the Company of such information (but within such
five-day period), and the parties shall in good faith use commercially
reasonable efforts to eliminate, waive or resolve any problem. If,
notwithstanding such efforts, such problem cannot be eliminated, waived or
resolved, either the Company or the Purchaser may elect to terminate this
Agreement pursuant to the terms of Section 9.1(b) or 9.1(c), as the case may be.

         (b) The Purchaser shall promptly complete its final due diligence
investigation of the Company by October 5, 1997.

         Section 11.19 Interpretation of Agreement.

         (a) Each party hereto acknowledges that it has participated in the
drafting of this Agreement, and any applicable rule of construction to the
effect that ambiguities are to be resolved against the drafting party shall not
be applied in connection with the construction or interpretation of this
Agreement.

         (b) Whenever required by the context hereof, the
singular number shall include the plural, and vice versa; the masculine
gender shall include the feminine and neuter genders; and the neuter gender
shall include the masculine and feminine genders.

                                      22.

 
         (c) As used in this Agreement, the words "include" and "including," and
variations thereof, shall not be deemed to be terms of limitation, and shall be
deemed to be followed by the words "without limitation."

         (d) References herein to "Articles," "Sections" and "Exhibits" are
intended to refer to Sections of and Exhibits to this Agreement.

         Section 11.20 Commercially Reasonable Efforts. Throughout this
Agreement and the other Acquisition Documents, subject to Section 1.2,
"commercially reasonable efforts" of a Person shall mean the efforts that a
prudent Person using ordinary business practice and judgment consistent with
industry practice and desiring to achieve a particular result would use in order
to obtain such result, which efforts may include, among other things, the
expenditure of funds; provided, that such efforts shall not require a Person to
(i) expend funds other than for the payment of reasonable and customary costs
and expenses of employees, legal counsel, consultants, representatives or agents
of such Person or (ii) institute litigation or arbitration proceedings as a part
of its efforts.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

                                      23.

 
         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the date first above written.

                                 CALIFORNIA KIDNEY CENTERS, ORANGE, LLC

                                 By:      California Kidney Centers

                                          By:    Kidney Healthcare Centers, Inc.

                                          By:      /s/ Mark Burke
                                                  -------------------------
                                                   Name:    Mark Burke
                                                   Title:   President

                                 RENAL TREATMENT CENTERS-CALIFORNIA, INC.

                                 By:      /s/ Robert L. Mayer, Jr.
                                          -----------------------------------  
                                          Name:    Robert L. Mayer, Jr.
                                          Title:   Chairman, President and Chief
                                                    Executive Officer



                           ASSET PURCHASE AGREEMENT

 
                                                                       EXHIBIT A

                                 DEFINED TERMS


         For purposes of this Agreement (including the Disclosure Schedule):

         "Agreement" shall mean the Asset Purchase Agreement to which this
Exhibit A is attached.

         "Acquisition" means the acquisition by the Purchaser of the Purchased
Assets.

         "Acquisition Documents" shall have meaning specified in Section 4.2.

         "Acquisition Transaction" shall mean any transaction involving:

         (a) the sale or other disposition of all or any portion of the
Company's business or assets (other than in the ordinary course of business);

         (b) the issuance, sale or other disposition of any Equity Securities of
the Company; or

         (c) any merger, consolidation, business combination, share exchange,
reorganization or similar transaction involving the Company.

         "Affiliate" means a Person that directly or indirectly, through one or
more intermediaries, controls, or is controlled by, or is under common control
with, specified Person.

         "Agent" shall have the meaning specified in the Memorandum.

         "Associates" of a Person shall include:

         (a) such Person's affiliates, stockholders, directors, officers,
employees, agents, attorneys, accountants and representatives; and

         (b) all stockholders, directors, officers, employees, agents,
attorneys, accountants and representatives of each of such Person's affiliates.

         "Assumed Contracts" shall have the meaning specified in Section 1.1(f).

         "Assumed Liabilities" shall have the meaning specified in Section 2.1.

         "Audited Financial Statements" shall mean the audited balance sheet of
the Company as of December 31, 1996, and such related audited statement of
operations of the Company for the period then ended, including the notes
thereto, accompanied by the report of Frank Rimmerman & Co. thereon.

         "Business" shall have the meaning specified in the Recitals.

         "Claim Notice" shall have the meaning specified in Section 10.8.

         "Claimant" shall have the meaning specified in Section 10.8.

                                      1.

 
         "Closing" shall have the meaning specified in Section 3.3.

         "Closing Date" shall mean the time and date as of which the Closing
actually takes place.

         "Company" shall mean California Kidney Centers, Orange, LLC, a
California limited liability company.

         "Damages" shall mean out-of-pocket losses and damages; provided, that
for purposes of computing the amount of Damages incurred by any Person, there
shall be deducted an amount equal to the amount of any insurance proceeds,
indemnification payments, contribution payments or reimbursements directly or
indirectly received by such Person or any of such Person's affiliates in
connection with such Damages or the circumstances giving rise thereto.

         "Deductible Amount" shall have the meaning specified in Section 10.4.

         "Disclosure Schedule" shall mean that certain Disclosure Schedule
delivered together with the Agreement, which shall be arranged in parts to
correspond with the sections and subsections of the Agreement and each
disclosure set forth therein shall be deemed to modify each and every
representation, warranty and covenant of the Company set forth in the Agreement
as it pertains to such representation, warranty or covenant. The contents of
each of the contracts and other documents referred to in the Disclosure Schedule
shall be deemed to be incorporated and referred to in the Disclosure Schedule as
though set forth in full therein.

         "Encumbrance" shall mean any encumbrance, lien, mortgage, pledge, lease
or noncontingent charge.

         "Equity Securities" means any capital stock or other equity interest,
or securities convertible into or exchangeable for capital stock or other equity
interest, or any other rights, warrants or options to acquire any of the
foregoing securities.

         "ESRD Patients" has the meaning specified in the Recitals.

         "Excluded Assets" shall mean (i) all of the Company's cash balances,
cash equivalents and accounts receivable, (ii) the Company's corporate franchise
and related indicia, (iii) the consideration delivered to the Company pursuant
to and all rights arising under this Agreement or any of the Acquisition
Documents, (iv) the Company's tax returns, refunds and tax records, (v) all
insurance policies and surety bonds of the Company, (vi) all items of prepaid
expenses, deposits and other similar sums to which the Company may become
entitled to a refund, (vii) all payroll processing agreements, (viii) all
vending service agreements, including, without limitation, the Cold Drink
Equipment Agreement entered into by Dialysis Systems, LLC, and (ix) any and all
administrative service agreements between the Company and Satellite Dialysis
Centers, Inc.

         "Excluded Liabilities" shall mean (i) any and all of the Company's
Closing transaction fees and expenses, including, without limitation, the
Company's financial advisory, accounting and legal fees and expenses, (ii)
subject to Sections 6.1(e) and 6.2(e), obligations relating to the Company's
employees, including, without limitation, accrued salaries and wages,
obligations under the Company's employee benefit plans, and retention bonuses
and severance obligations payable to employees of the Company, through the
Closing Date as a result of the transactions contemplated by this Agreement and
the other Acquisition Documents, (iii) any and all federal and state income
taxes payable by the Company as a result of the transactions contemplated by
this Agreement and the Acquisition Documents, (iv) the 

                                      2.

 
Company's federal, state and local taxes for any period prior to the Closing
accrued through the Closing Date, (v) any liability arising out of or relating
to overpayments, malpractice, fraud and violations of applicable federal and
state fraud and abuse, anti-kickback and Stark laws occurring prior to Closing
Date, or (vi) any liability or obligation of the Company that is not expressly
assumed by the Purchaser herein.

         "Financial Statements" shall mean the Audited Financial Statements and
the Unaudited Financial Statements.

         "GAAP" shall mean generally accepted accounting principles, applied on
a basis consistent with the basis on which the applicable financial statements
were prepared.

         "Governmental Entity" means any government or any agency, bureau,
board, commission, court, department, official, political subdivision, tribunal
or other instrumentality of any government or any quasi-governmental authority
or self-regulatory organization (such as the New York Stock Exchange, Inc.),
whether federal, state or local.

         "HCFA" shall have the meaning specified in Section 4.10(b).

         "HSR Act" shall mean the Hart-Scott-Rodino Antitrust Improvements Act
of 1976 and the rules promulgated thereunder.

         "Indemnified Party" shall have the meaning specified in Section 10.10.

         "Indemnifying Party" shall have the meaning specified in Section 10.9.

         "Indemnitee" shall have the meaning specified in Section 10.9.

         "Indemnitor" shall have the meaning specified in Section 10.10.

         "Knowledge," to the best knowledge of, to which a Person is aware,
known to a Person, or any variation thereof shall mean the actual knowledge of
such Person without having made independent investigation in connection with
this Agreement. For the Company, Knowledge shall be the actual knowledge of Mark
Burke, Marc Branson and Michael E. Arquilla, M.D..

         "Laws" shall have the meaning specified in Section 4.10(a).

         "Material Adverse Effect" shall mean any occurrence, event or
condition, either individually or in the aggregate, having a material adverse
effect on the business operations or financial condition of the Company, or the
Purchased Assets, taken together as a whole.

         "Material Contract" shall have the meaning specified in Section 4.7.

         "Matter" shall mean any claim, demand, dispute, action, suit,
examination, audit, proceeding, investigation, inquiry or other similar matter.

         "Medicaid" means that means-tested entitlement program under Title XIX
of the Social Security Act that provides federal grants to states for medical
insurance based on specific eligibility criteria, as interpreted by the
appropriate Governmental Entities prior to the date hereof.

                                      3.

 
         "Medical Reimbursement Programs" means the Medicare, Medicaid programs
and any other health care program operated by or serviced in whole or in part by
any federal, state or local government, each as interpreted by the appropriate
Governmental Entities prior to date hereof.

         "Medicare" means that government-sponsored entitlement program under
Title XVIII of the Social Security Act that provides for a health insurance
program for eligible elderly and disabled individuals, as interpreted by the
appropriate Governmental Entities prior to the date hereof.

         "Memorandum" means that certain Memorandum of Understanding of even
date herewith by and among the Purchaser, California Kidney Centers, California
Kidney Centers, Inpatient Services, LLC, California Kidney Centers, Orange, LLC,
Dialysis Systems, Inpatient Services, LLC, Dialysis Systems, LLC and Satellite
Dialysis Centers, Inc., solely as agent for the selling parties thereto.

         "Noncompetition Agreement" shall have the meaning specified in 
Section 3.4(e).

         "Nondisclosure Agreement" shall mean that certain Nondisclosure
Agreement, dated May 27, 1997, between the Purchaser and Satellite Dialysis
Centers, Inc., on behalf of itself and as agent for the Company and the Owners.

         "Overpayments" shall have the meaning specified in Section 4.10(a).

         "Owner" shall mean each holder of Equity Securities of the Company.

         "Permitted Encumbrances" shall mean (i) those encumbrances resulting
from taxes that have not yet become due and delinquent, (ii) minor encumbrances
that do not materially detract from the value of the real property interests
subject thereto or materially impair their operations, (iii) zoning laws and
other use restrictions of public record, (iv) encumbrances that arise or have
otherwise arisen in the ordinary course of business, (v) restrictions arising
under all Laws, and (vi) those encumbrances described in Part 4.5 of the
Disclosure Schedule.

         "Person" shall mean any individual, corporation, association, general
partnership, limited partnership, venture, trust, association, firm,
organization, company, business, entity, union, society, government (or
political subdivision thereof) or governmental agency, authority or
instrumentality.

         "Physical Assets" shall have the meaning specified in Section 4.5.

         "Purchase Price" shall have the meaning specified in Section 3.1.

         "Purchased Assets" shall have the meaning specified in the Section 1.1.

         "Purchaser" shall mean Renal Treatment Centers - West, Inc., a Delaware
corporation/Renal Treatment Centers - California, Inc., a Delaware corporation.

         "Purchaser Material Adverse Effect" shall have the meaning specified in
Section 5.1.

         "Proprietary Rights" shall have the meaning specified in Section 4.8.

         "Registered Patients" shall mean patients who have completed and mailed
Health Care Financing Administration Form 2728 indicating that they are
registered patients of one of the Sellers' facilities.

                                      4.

 
         "Scheduled Closing Time" shall mean 2:00 p.m. (California time) on
October 31, 1997 or such time and date as may be postponed by the mutual
agreement of the parties hereto.

         "Statement Date" December 31, 1996.

         "Termination Date" shall mean the later of (i) December 31, 1997 and
(ii) seven (7) days after receipt of all consents, approvals, authorizations and
waivers of all Governmental Entities required to be obtained under this
Agreement.

         "Unaudited Financial Statements" shall mean the unaudited balance sheet
of the Company as of June 30, 1997, and such related statement of operations of
the Company for the period then ended prepared by the Company.

                                      5.