NOTICE OF GUARANTEED DELIVERY FOR
                          TENET HEALTHCARE CORPORATION
 
    This form or one substantially equivalent hereto must be used to accept the
Exchange Offer of Tenet Healthcare Corporation (the "Company") made pursuant to
the prospectus, dated September   , 1998 (the "Prospectus"), if certificates for
the outstanding 7 5/8% Senior Notes due 2008 and 8 1/8% Senior Subordinated
Notes due 2008 of the Company (the "Old Notes") are not immediately available or
if the procedure for book-entry transfer cannot be completed on a timely basis
or time will not permit all required documents to reach The Bank of New York, as
exchange agent (the "Exchange Agent") prior to 5:00 p.m., New York City time, on
the Expiration Date of the Exchange Offer. Such form may be delivered or
transmitted by facsimile transmission, mail or hand delivery to the Exchange
Agent as set forth below. In addition, in order to utilize the guaranteed
delivery procedure to tender Old Notes pursuant to the Exchange Offer, a
completed, signed and dated Letter of Transmittal (or facsimile thereof) must be
received by the Exchange Agent prior to 5:00 p.m., New York City time, on the
Expiration Date. Capitalized terms not defined herein shall have the respective
meanings ascribed to them in the Prospectus.
 
               DELIVERY TO: The Bank of New York, EXCHANGE AGENT
 
                  BY MAIL, OVERNIGHT COURIER OR HAND DELIVERY:
 
                          Attention: Millicent Burnett
                              The Bank of New York
                           101 Barclay Street 21 West
                            New York, New York 10286
 
                           BY FACSIMILE TRANSMISSION:
                        (FOR ELIGIBLE INSTITUTIONS ONLY)
                                 (212) 815-6339
                          Attention: Millicent Burnett
 
                             CONFIRM BY TELEPHONE:
 
                                 (212) 815-3502
 
    DELIVERY OF THIS INSTRUMENT TO AN ADDRESS OTHER THAN AS SET FORTH ABOVE, OR
TRANSMISSION OF THIS INSTRUMENT VIA FACSIMILE OTHER THAN AS SET FORTH ABOVE,
WILL NOT CONSTITUTE A VALID DELIVERY.
 
Ladies and Gentlemen:
 
    Upon the terms and conditions set forth in the Prospectus, the undersigned
hereby tenders to the Company the principal amount of Old Notes set forth below
pursuant to the guaranteed delivery procedure described in "The Exchange
Offer--Guaranteed Delivery Procedures" section of the Prospectus.
 

                                            
Principal Amount of Old Notes Tendered:*
$
Certificate Nos. (if available):
 
                                               If Old Notes will be delivered by book-entry
                                               transfer to The Depository Trust Company,
                                               provide account number.
Total Principal Amount Represented by
Old Notes Certificate(s):
$                                              Account Number

 
*Must be in denominations of principal amount of $1,000 and any integral
 multiple thereof.

    ALL AUTHORITY HEREIN CONFERRED OR AGREED TO BE CONFERRED SHALL SURVIVE THE
DEATH OR INCAPACITY OF THE UNDERSIGNED AND EVERY OBLIGATION OF THE UNDERSIGNED
HEREUNDER SHALL BE BINDING UPON THE HEIRS, PERSONAL REPRESENTATIVES, SUCCESSORS
AND ASSIGNS OF THE UNDERSIGNED.
 
- --------------------------------------------------------------------------------
 
                                PLEASE SIGN HERE
 

                                                         
X
X
           Signature(s) of Owner(s)                   Date
           or Authorized Signatory
           Area Code and Telephone Number:

 
    Must be signed by the holder(s) of Old Notes as such holder(s) name(s)
appear(s) on certificates for Old Notes or on a security position listing, or by
person(s) authorized to become registered holder(s) by endorsement and documents
transmitted with this Notice of Guaranteed Delivery. If signature is by a
trustee, executor, administrator, guardian, attorney-in-fact, officer or other
person acting in a fiduciary or representative capacity, such person must set
forth his or her full title below.
 
                      PLEASE PRINT NAME(S) AND ADDRESS(ES)
 

          
Name(s):
Capacity:
Address(es):

 
                                   GUARANTEE
 
                    (Not to be used for signature guarantee)
 
    The undersigned, a financial institution that is a participant in the
Securities Transfer Agents Medallion Program, the New York Stock Exchange
Medallion Signature Program or the Stock Exchanges Medallion Program, hereby
guarantees that the certificates representing the principal amount of Old Notes
tendered hereby in proper form for transfer, or timely confirmation of the
book-entry transfer of such Old Notes into the Exchange Agent's account at The
Depository Trust Company pursuant to the procedures set forth in "The Exchange
Offer--Guaranteed Delivery Procedures" section of the Prospectus, together with
one or more properly completed and duly executed Letters of Transmittal (or
facsimile thereof or Agent's Message in lieu thereof) and any required signature
guarantee and any other documents required by the Letter of Transmittal, will be
received by the Exchange Agent at the address set forth above, no later than
three New York Stock Exchange trading days after the date of execution of the
Notice of Guaranteed Delivery.
 

                                            
                Name of Firm                               Authorized Signature
                   Address                                         Title
                                                                   Name:
                                    Zip Code              (Please Type or Print)
           Area Code and Tel. No.                                 Dated:

 
NOTE: DO NOT SEND CERTIFICATES FOR OLD NOTES WITH THIS FORM. CERTIFICATES FOR
      OLD NOTES SHOULD BE SENT ONLY WITH A COPY OF YOUR PREVIOUSLY EXECUTED
      LETTER OF TRANSMITTAL.