Document:

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                                                                    EXHIBIT 4.1

                             SUPPLEMENTAL INDENTURE

         SUPPLEMENTAL INDENTURE (this "Supplemental Indenture"), effective as of
August 1, 2005, among Cardiovascular Specialty Centers of Utah, LP (the
"Guaranteeing Subsidiary"), a subsidiary of IASIS Healthcare LLC (or its
permitted successor), (the "Company"), the Company, IASIS Capital Corporation
(or its permitted successor), ("IASIS Capital," and together with the Company,
the "Issuers"), the other Guarantors (as defined in the Indenture referred to
herein) and The Bank of New York Trust Company, N.A., as trustee under the
Indenture referred to below (the "Trustee").

                               W I T N E S S E T H

         WHEREAS, the Issuers have heretofore executed and delivered to the
Trustee an indenture (the "Indenture"), dated as of June 22, 2004 providing for
the issuance of 8 3/4% Senior Subordinated Notes due 2014 (the "Notes");

         WHEREAS, the Indenture provides that under certain circumstances the
Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental
indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally
guarantee all of the Company's Obligations under the Notes and the Indenture on
the terms and conditions set forth herein (the "Subsidiary Guarantee"); and

         WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is
authorized to execute and deliver this Supplemental Indenture.

         NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the Parties
mutually covenant and agree for the equal and ratable benefit of the Holders of
the Notes as follows:

         1. CAPITALIZED TERMS. Capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture.

         2. AGREEMENT TO GUARANTEE. The Guaranteeing Subsidiary hereby agrees to
provide an unconditional Guarantee on the terms and subject to the conditions
set forth in the Subsidiary Guarantee and in this Indenture including but not
limited to Article 11 thereof.

         3. NO RECOURSE AGAINST OTHERS. No past, present or future director,
officer, employee, incorporator, stockholder or agent of the Guaranteeing
Subsidiary, as such, shall have any liability for any obligations of the Issuers
or any Guaranteeing Subsidiary under the Notes, any Subsidiary Guarantees, the
Indenture or this Supplemental Indenture or for any claim based on, in respect
of, or by reason of, such obligations or their creation. Each Holder of the
Notes by accepting a Note waives and releases all such liability. The waiver and
release are part of the consideration for issuance of the Notes. Such waiver may
not be effective to waive liabilities under the federal securities laws and it
is the view of the SEC that such a waiver is against public policy.

         4. NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK
SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE BUT WITHOUT
GIVING EFFECT TO APPLICABLE PRINCIPLES OF

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CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER
JURISDICTION WOULD BE REQUIRED THEREBY.

         5. COUNTERPARTS. The parties may sign any number of copies of this
Supplemental Indenture. Each signed copy shall be an original, but all of them
together represent the same agreement.

         6. EFFECT OF HEADINGS. The Section headings herein are for convenience
only and shall not affect the construction hereof.

         7. THE TRUSTEE. The Trustee shall not be responsible in any manner
whatsoever for or in respect of the validity or sufficiency of this Supplemental
Indenture or for or in respect of the recitals contained herein, all of which
recitals are made solely by the Guaranteeing Subsidiary and the Issuers.

                            [Signature Pages Follow]

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

                                         CARDIOVASCULAR SPECIALTY CENTERS OF
                                         UTAH, LP

                                         By: /s/ Frank A. Coyle
                                             ---------------------------------
                                         Name: Frank A. Coyle
                                         Title: Secretary

                                         IASIS HEALTHCARE LLC

                                         By: /s/ W. Carl Whitmer
                                             ---------------------------------
                                         Name: W. Carl Whitmer
                                         Title: Chief Financial Officer

                                         IASIS CAPITAL CORPORATION

                                         By: /s/ W. Carl Whitmer
                                             ---------------------------------
                                         Name: W. Carl Whitmer
                                         Title: Chief Financial Officer

                                         ARIZONA DIAGNOSTIC & SURGICAL
                                           CENTER, INC.
                                         BAPTIST JOINT VENTURE HOLDINGS, INC.
                                         BEAUMONT HOSPITAL HOLDINGS, INC.
                                         BILTMORE SURGERY CENTER, INC.
                                         BILTMORE SURGERY CENTER HOLDINGS, INC.
                                         BROOKWOOD DIAGNOSTIC CENTER OF
                                           TAMPA, INC.
                                         DAVIS HOSPITAL HOLDINGS, INC.
                                         DAVIS SURGICAL CENTER HOLDINGS, INC.
                                         DECISIONPOINT SERVICES, INC.
                                         FIRST CHOICE PHYSICIANS NETWORK
                                           HOLDINGS, INC.
                                         IASIS FINANCE, INC.
                                         IASIS HEALTHCARE HOLDINGS, INC.
                                         IASIS MANAGEMENT COMPANY
                                         IASIS PHYSICIAN SERVICES, INC.
                                         IASIS TRANSCO, INC.
                                         JORDAN VALLEY HOSPITAL HOLDINGS, INC.
                                         MCS/AZ, INC.
                                         METRO AMBULATORY SURGERY CENTER, INC.

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                                        NORTH VISTA HOSPITAL, INC.
                                        PALMS OF PASADENA HOMECARE, INC.
                                        PIONEER VALLEY HEALTH PLAN, INC.
                                        PIONEER VALLEY HOSPITAL, INC.
                                        PIONEER VALLEY HOSPITAL PHYSICIANS, INC.
                                        ROCKY MOUNTAIN MEDICAL CENTER, INC.
                                        SALT LAKE REGIONAL MEDICAL CENTER, INC.
                                        SALT LAKE REGIONAL PHYSICIANS, INC.
                                        IASIS HOSPITAL NURSE STAFFING COMPANY
                                        SOUTHRIDGE PLAZA HOLDINGS, INC.
                                        SSJ ST. PETERSBURG HOLDINGS, INC.
                                        TAMPA BAY STAFFING SOLUTIONS, INC.

                                        By: /s/ Frank A. Coyle
                                           -----------------------------------
                                           Name: Frank A. Coyle
                                           Title: Secretary

                                        SEABOARD DEVELOPMENT LLC

                                        By: /s/ Frank A. Coyle
                                           ------------------------------------
                                           Name: Frank A. Coyle
                                           Title: Secretary

                                        IASIS FINANCE TEXAS HOLDINGS, LLC

                                        By: /s/ Frank A. Coyle
                                           -----------------------------------
                                           Name: Frank A. Coyle
                                           Title: Secretary

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                                        ST. LUKE'S BEHAVIORAL HOSPITAL, LP
                                        MEMORIAL HOSPITAL OF TAMPA, LP
                                        MESA GENERAL HOSPITAL, LP
                                        PALMS OF PASADENA HOSPITAL, LP
                                        SOUTHWEST GENERAL HOSPITAL, LP
                                        ST. LUKE'S MEDICAL CENTER, LP
                                        TEMPE ST. LUKE'S HOSPITAL, LP
                                        TOWN & COUNTRY HOSPITAL, LP
                                        MOUNTAIN VISTA MEDICAL CENTER, LP

                                        By:  IASIS HEALTHCARE HOLDINGS, INC.,
                                             as General Partner

                                        By: /s/ Frank A. Coyle
                                            ----------------------------------
                                            Name: Frank A. Coyle
                                            Title: Secretary

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                                       THE BANK OF NEW YORK TRUST COMPANY, N.A.,
                                       as Trustee

                                       By: /s/ Stefan Victory
                                           ------------------------------------
                                           Authorized Signature

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                                                                    Exhibit 10.1

                                JOINDER AGREEMENT

          THIS JOINDER AGREEMENT (the "Agreement"), effective as of August 1,
2005, is by and between CARDIOVASCULAR SPECIALTY CENTERS OF UTAH, LP, a Delaware
limited partnership (the "Subsidiary"), and BANK OF AMERICA, N.A., in its
capacity as Administrative Agent under that certain Amended and Restated Credit
Agreement (as it may be amended, modified, restated or supplemented from time to
time, the "Credit Agreement"), dated as of June 22, 2004, by and among IASIS
HEALTHCARE LLC, a Delaware limited liability company (the "Borrower"), the
Guarantors, the Lenders and Bank of America, N.A., as Administrative Agent,
Swingline Lender and L/C Issuer. All of the defined terms in the Credit
Agreement are incorporated herein by reference.

          The Loan Parties are required by Section 7.11 of the Credit Agreement
to cause the Subsidiary to become a "Guarantor".

          Accordingly, the Subsidiary hereby agrees as follows with the
Administrative Agent, for the benefit of the Lenders:

          1. The Subsidiary hereby acknowledges, agrees and confirms that, by
its execution of this Agreement, the Subsidiary will be deemed to be a party to
the Credit Agreement and a "Guarantor" for all purposes of the Credit Agreement,
and shall have all of the obligations of a Guarantor thereunder as if it had
executed the Credit Agreement. The Subsidiary hereby ratifies, as of the date
hereof, and agrees to be bound by, all of the terms, provisions and conditions
applicable to the Guarantors contained in the Credit Agreement. Without limiting
the generality of the foregoing terms of this paragraph 1, the Subsidiary hereby
jointly and severally together with the other Guarantors, guarantees to each
Lender and the Administrative Agent, as provided in Article IV of the Credit
Agreement, the prompt payment and performance of the Obligations in full when
due (whether at stated maturity, as a mandatory prepayment, by acceleration or
otherwise) strictly in accordance with the terms thereof.

          2. The Subsidiary hereby acknowledges, agrees and confirms that, by
its execution of this Agreement, the Subsidiary will be deemed to be a party to
the Security Agreement and shall have all the obligations of an "Obligor" (as
such term is defined in the Security Agreement) thereunder as if it had executed
the Security Agreement. The Subsidiary hereby ratifies, as of the date hereof,
and agrees to be bound by, all of the terms, provisions and conditions contained
in the Security Agreement. Without limiting the generality of the foregoing
terms of this paragraph 2, the Subsidiary hereby grants to the Administrative
Agent, for the benefit of the Lenders, a continuing security interest in, and a
right of set off against, any and all right, title and interest of the
Subsidiary in and to the Collateral (as such term is defined in Section 2 of the
Security Agreement) of the Subsidiary. The Subsidiary hereby represents and
warrants to the Agent that:

          (i) The Subsidiary's chief executive office and chief place of
     business are (and for the prior four months have been) located at the
     locations set forth on Schedule 1 attached hereto and the Subsidiary keeps
     its books and records at such locations.

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          (ii) The type of Collateral owned by the Subsidiary and the location
     of all Collateral owned by the Subsidiary is as shown on Schedule 2
     attached hereto.

          (iii) The Subsidiary's legal name is as shown in this Agreement and
     the Subsidiary has not in the past four months changed its name, been party
     to a merger, consolidation or other change in structure or used any
     tradename except as set forth in Schedule 3 attached hereto.

          (iv) The patents and trademarks listed on Schedule 4 attached hereto
     constitute all of the registrations and applications for the patents and
     trademarks owned by the Subsidiary.

          (v) The Subsidiary Equity (as such term is defined in Section 1 of the
     Security Agreement) owned by the Subsidiary is listed on Schedule 5
     attached hereto.

          3. The address of the Subsidiary for purposes of all notices and other
communications is 117 Seaboard Lane, Building E, Franklin, TN 37067, Attention
of President or General Counsel of IASIS Healthcare Corporation (Facsimile No.
615-846-3006).

          4. The Subsidiary hereby waives acceptance by the Administrative Agent
and the Lenders of the guaranty by the Subsidiary under Section 4 of the Credit
Agreement upon the execution of this Agreement by the Subsidiary.

          5. This Agreement may be executed in two or more counterparts, each of
which shall constitute an original but all of which when taken together shall
constitute one contract.

          6. This Agreement shall be governed by and construed and interpreted
in accordance with the laws of the State of New York.

                            [SIGNATURES ON NEXT PAGE]

                                        2

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          IN WITNESS WHEREOF, the Subsidiary has caused this Joinder Agreement
to be duly executed by its authorized officers, and the Administrative Agent,
for the benefit of the Lenders, has caused the same to be accepted by its
authorized officer, as of the day and year first above written.

                                        CARDIOVASCULAR SPECIALTY CENTERS OF
                                        UTAH, LP

                                        By: IASIS Healthcare Holdings, Inc.,
                                            its general partner

                                        By: /s/ Frank A. Coyle
                                            ------------------------------------
                                        Name: Frank A. Coyle
                                        Title: Secretary

                                        Acknowledged and accepted:

                                        BANK OF AMERICA, N.A.,
                                        as Administrative Agent

                                        By:
                                            ------------------------------------
                                        Name:
                                              ----------------------------------
                                        Title:
                                               ---------------------------------

                                        3

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                                   SCHEDULE 1
               CHIEF EXECUTIVE OFFICE AND CHIEF PLACE OF BUSINESS

                          117 Seaboard Lane, Building E
                               Franklin, TN 37067

                                   SCHEDULE 2
                        TYPES AND LOCATIONS OF COLLATERAL

     None of the Collateral of the Subsidiary consists of, or is Proceeds of,
As-Extracted Collateral, Consumer Goods, Farm Products, Manufactured Homes or
Standing Timber. All Collateral of the Subsidiary is or will be located at (1)
the Subsidiary's chief executive office and chief place of business as set forth
on Schedule 1, and/or (2) the campuses of Pioneer Valley Hospital, Salt Lake
Regional Medical Center, Davis Hospital and Medical Center or Jordan Valley
Hospital.

                                   SCHEDULE 3
                                   TRADENAMES

                  Cardiovascular Specialty Centers of Utah, LP

                                   SCHEDULE 4
                             PATENTS AND TRADEMARKS

                                      None.

                                   SCHEDULE 5
                                SUBSIDIARY EQUITY

                                      None.

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