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                                                                     EXHIBIT 5.5






                                                                                            

                                                               MONTGOMERY & ANDREWS
                                                             PROFESSIONAL ASSOCIATION                      Post Office Box 2307
                   OF COUNSEL                             ATTORNEYS AND COUNSELORS AT LAW         Santa Fe, New Mexico 87504-2307
               William R. Federici

              J.O. Seth (1883-1963)
           A.K. Montgomery (1903-1987)                           December 11, 2003                           www.montand.com
            Frank Andrews (1914-1981)
         Seth D. Montgomery (1937-1998)

Victor R. Ortega           Andrew S. Montgomery
Gary Kilpatric             Jennifer L. Weed                     VIA FEDERAL EXPRESS                        325 Paseo de Peralta
                                                                -------------------
Thomas W. Olson            Paul R. Owen                         AND ELECTRONIC MAIL                     Santa Fe, New Mexico 87501
                                                                -------------------
Walter J. Melendres        Randy S. Bartell
John B. Draper             Carolyn A. Wolf                                                               Telephone (505) 982-3873
Nancy M. King              Jeffery L. Martin                                                                Fax (505) 982-4289
Sarah M. Singleton         Emma Rodriguez
Stephen S. Hamilton        Brittain
Edmund H. Kendrick         Karen L. Brooks
Louis W. Rose              Germaine R. Chappelle
                           Jesse A. Boyd

                   OF COUNSEL
                Earl Potter, P.A.




         Ardent Health Services LLC
         Ardent Health Services, Inc.
         One Burton Hills Boulevard, Suite 250
         Nashville, Tennessee 37215

         Ladies and Gentlemen:

         We refer to the Registration Statement on Form S-1 (File No.
         333-110117) (the "Registration Statement") filed by Ardent Health
         Services LLC, a Delaware limited liability company (the "Parent"),
         Ardent Health Services, Inc., a Delaware corporation (the "Issuer"),
         and the other subsidiaries of the Parent named therein as guarantors
         (collectively, the "Subsidiary Guarantors") with the Securities and
         Exchange Commission under the Securities Act of 1933, as amended (the
         "Securities Act"), relating to the registration of up to $225,000,000
         principal amount of the Issuer's 10% Senior Subordinated Notes due 2013
         (the "Exchange Notes") to be issued in an exchange offer for
         $225,000,000 principal amount of the Issuer's outstanding 10% Senior
         Subordinated Notes due 2013 (the "Original Notes"). The Original Notes
         are, and the Exchange Notes will be, guaranteed by the Parent and the
         Subsidiary Guarantors, including AHS Albuquerque Holdings, LLC, AHS New
         Mexico Holdings, Inc., AHS Research and Review, LLC, AHS S.E.D. Medical
         Laboratories, Inc., Mesilla Valley Mental Health Associates, Inc., and
         Mesilla Valley General Partnership (collectively, the "New Mexico
         Subsidiary Guarantors"). Original Notes that are accepted for exchange
         for Exchange Notes will be cancelled and retired.

         The Original Notes were and the Exchange Notes will be issued pursuant
         to an Indenture dated as of August 19, 2003 (the "Indenture") among the
         Issuer, the Parent, the Subsidiary Guarantors and U.S. Bank Trust
         National Association, N.A., as trustee. The Original Notes were issued
         and sold on August 19, 2003 to Banc of America Securities LLC, UBS
         Securities LLC, Banc One Capital Markets, Inc. and Merrill Lynch,
         Pierce, Fenner & Smith Incorporated, the initial purchasers thereof
         (the "Initial Purchasers"), without registration under the Securities
         Act, and were offered and sold by the Initial Purchasers to qualified
         institutional buyers in reliance on Rule 144A under the Securities Act
         and in transactions outside the United States in reliance on Regulation
         S under the Securities Act.




         Ardent Health Services LLC
         Ardent Health Services, Inc.
         December 12, 2003

         Except as otherwise expressly noted below, the opinions given herein
         are limited to the laws of the United States of America and the
         regulatory, statutory, and common laws of the State of New Mexico, and
         no opinion is expressed herein with respect to the laws of any other
         jurisdiction or state, or with respect to the effect of such laws on
         matters dealt with herein.

         In rendering the opinions expressed below, we have examined and relied
         upon copies of the Registration Statement, the Indenture and the Form
         of Notation of Guarantee (the "Notation of Guarantee") under the
         Indenture. We have also examined originals, or copies of originals
         certified to our satisfaction, of such agreements, documents,
         certificates and other statements of governmental officials and other
         instruments, and have examined such questions of law and have satisfied
         ourselves as to such matters of fact, as we have considered relevant
         and necessary as a basis for this opinion. We have assumed the
         authenticity of all documents submitted to us as originals, the
         genuineness of all signatures, the legal capacity of all natural
         persons and the conformity with the original documents of any copies
         thereof submitted to us for our examination.

         Based on the foregoing and subject to the qualifications and
         limitations set forth below, we are of the opinion that:

                  1.       Each of the New Mexico Guarantors is duly
         incorporated or organized, as applicable, and is validly existing and
         in good standing under the laws of the State of New Mexico.

                  2.       Each of the New Mexico Guarantors has full right,
         power and authority to execute, deliver and perform its obligations
         under the Indenture and the Notation of Guarantee.

                  3.       The Indenture has been duly authorized, executed and
         delivered by each New Mexico Subsidiary Guarantor and the Notation of
         Guarantee has been duly authorized by each of the New Mexico
         Guarantors.

         We are licensed to practice law in the State of New Mexico. The
         opinions expressed herein are specifically limited to the federal laws
         of the United States of America and the laws of the State of New
         Mexico.

         Ropes & Gray LLP may rely upon this opinion as if it were addressed to
         them.

         We hereby consent to the filing of this opinion letter as an Exhibit to
         the Registration Statement and to all references to our firm included
         in or made a part of the Registration Statement. In giving such
         consent, we do not thereby admit that we are within the category of
         persons whose consent is required by Section 7 of the Securities Act or
         the related Rules promulgated by the Securities and Exchange
         Commission.

                                    Very truly yours,




         Ardent Health Services LLC
         Ardent Health Services, Inc.
         December 12, 2003

                                    MONTGOMERY & ANDREWS, P.A.



                                    By: /s/ Paul R. Owen
                                        ----------------------
                                        Paul R. Owen