<PAGE>   1
                                                                     EXHIBIT 4.9



                                                               CUSIP __________

                 13% SERIES B SENIOR SUBORDINATED NOTES DUE 2009

No. __


                          IASIS HEALTHCARE CORPORATION

promises to pay to Cede & Co., or registered assigns, the principal sum of
_______________________ (_________________) Dollars on October 15, 2009.

Interest Payment Dates: April 15 and October 15

Record Dates: April 1 and October 1

                                          Dated:  _____________, 2000



                                          IASIS HEALTHCARE CORPORATION


                                          By:____________________________
                                             Name:
                                             Title:


This is one of the
Global Notes referred to in the
within-mentioned Indenture:


THE BANK OF NEW YORK,
as Trustee


By:________________________________
   Name:
   Title:
<PAGE>   2
                                 (Back of Note)


                 13% Series B Senior Subordinated Notes due 2009

THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE
GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL
OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES
EXCEPT THAT (I) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED
PURSUANT TO SECTION 2.07 OF THE INDENTURE, (II) THIS GLOBAL NOTE MAY BE
EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE,
(III) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT
TO SECTION 2.11 OF THE INDENTURE AND (IV) THIS GLOBAL NOTE MAY BE TRANSFERRED TO
A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY.

            Capitalized terms used herein shall have the meanings assigned to
them in the Indenture referred to below unless otherwise indicated.

            1. INTEREST. IASIS Healthcare Corporation, a Delaware corporation
(the "Company"), promises to pay interest on the principal amount of this Note
at 13% per annum from October 15, 1999 until maturity and shall pay the
Liquidated Damages payable pursuant to Section 5 of the Registration Rights
Agreement referred to below. The Company shall pay interest and Liquidated
Damages semi-annually on April 15 and October 15 of each year, or if any such
day is not a Business Day, on the next succeeding Business Day (each an
"Interest Payment Date"). Interest on the Notes shall accrue from the most
recent date to which interest has been paid or, if no interest has been paid,
from the date of issuance; provided that if there is no existing Default in the
payment of interest, and if this Note is authenticated between a record date
referred to on the face hereof and the next succeeding Interest Payment Date,
interest shall accrue from such next succeeding Interest Payment Date; provided,
further, that the first Interest Payment Date shall be April 15, 2000. The
Company shall pay interest (including post-petition interest in any proceeding
under any Bankruptcy Law) on overdue principal and premium, if any, from time to
time on demand at a rate that is 1.0% per annum in excess of the rate then in
effect; it shall pay interest (including post-petition interest in any
proceeding under any Bankruptcy Law) on overdue installments of interest and
Liquidated Damages (without regard to any applicable grace periods) from time to
time on demand at the same rate to the extent lawful. Interest shall be computed
on the basis of a 360-day year of twelve 30-day months.

            2. METHOD OF PAYMENT. The Company shall pay interest on the Notes
(except defaulted interest) and Liquidated Damages to the Persons who are
registered Holders of Notes at the close of business on the April 1 or October 1
next preceding the Interest Payment Date, even if such Notes are canceled after
such record date and on or before such Interest Payment Date, except as provided
in Section 2.12 of the Indenture with respect to defaulted interest. The Notes
shall be payable as to principal, premium and Liquidated Damages, if any, and
interest at the office or agency of the Company maintained for such purpose
within or without the City and State of New York, or, at the option of the
Company, payment of interest and Liquidated Damages may be made by check mailed
to the Holders at their addresses set forth
<PAGE>   3
in the register of Holders; provided, that payment by wire transfer of
immediately available funds shall be required with respect to principal of and
interest, premium and Liquidated Damages on, all Global Notes and all other
Notes the Holders of which own at least $1 million in aggregate principal amount
of Notes and shall have provided wire transfer instructions prior to the record
date to the Company or the Paying Agent. Such payment shall be in such coin or
currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts.

            3. PAYING AGENT AND REGISTRAR. Initially, The Bank of New York, the
Trustee under the Indenture, shall act as Paying Agent and Registrar. The
Company may change any Paying Agent or Registrar without notice to any Holder.
The Company or any of its Subsidiaries may act in any such capacity.

            4. INDENTURE. The Company issued the Notes under an Indenture dated
as of October 15, 1999 ("Indenture") among the Company, the Guarantors and the
Trustee. The terms of the Notes include those stated in the Indenture and those
made part of the Indenture by reference to the Trust Indenture Act of 1939, as
amended (15 U.S. Code Sections 77aaa-77bbbb) (the "TIA"). The Notes are
subject to all such terms, and Holders are referred to the Indenture and the TIA
for a statement of such terms. To the extent any provision of this Note
conflicts with the express provisions of the Indenture, the provisions of the
Indenture shall govern and be controlling. The Notes are obligations of the
Company limited to $230.0 million in aggregate principal amount plus amounts, if
any, issued to pay Liquidated Damages on outstanding Notes as set forth in
Paragraph 2 hereof.

            5. OPTIONAL REDEMPTION.

            (a) Except as provided below, the Notes will not be redeemable at
the Company's option prior to October 15, 2004. Thereafter, the Company may
redeem all or a part of the Notes upon not less than 30 nor more than 60 days'
notice, at the redemption prices (expressed as percentages of principal amount)
set forth below plus accrued and unpaid interest and Liquidated Damages, if any,
thereon to the applicable redemption date, if redeemed during the twelve-month
period beginning on October 15 of the years indicated below:

<TABLE>
<CAPTION>
Year                                                                 Percentage
----                                                                 ----------
<S>                                                                  <C>
2004.............................................................     106.500%
2005.............................................................     104.875%
2006.............................................................     103.250%
2007.............................................................     101.625%
2008 and thereafter..............................................     100.000%
</TABLE>
<PAGE>   4
            (b) Notwithstanding the foregoing, at any time prior to October 15,
2002, the Company may on any one or more occasions redeem up to 35% of the
aggregate principal amount of Notes issued under the Indenture at a redemption
price of 113.000% of the principal amount thereof, plus accrued and unpaid
interest and Liquidated Damages thereon, if any, to the redemption date, with
the net cash proceeds of one or more Equity Offerings; provided that: (a) at
least 65% of the aggregate principal amount of Notes issued under the Indenture
remains outstanding immediately after the occurrence of such redemption
(excluding Notes held by the Company and its Subsidiaries); and (b) the
redemption must occur within 90 days of the date of the closing of such Equity
Offering.

            Any redemption pursuant to this provision shall be made pursuant to
the provisions of Section 3.01 through 3.06 of the Indenture.

            6. MANDATORY REDEMPTION.

            The Company shall not be required to make mandatory redemption or
sinking fund payments with respect to the Notes.

            7. REPURCHASE AT OPTION OF HOLDER.

            (a) If there is a Change of Control, the Company shall be required
to make an offer (a "Change of Control Offer") to repurchase all or any part
(equal to $1,000 or an integral multiple thereof) of each Holder's Notes at a
purchase price equal to 101% of the aggregate principal amount thereof plus
accrued and unpaid interest and Liquidated Damages thereon, if any, to the date
of purchase (the "Change of Control Payment"). Within 30 days following any
Change of Control, the Company shall mail a notice to each Holder setting forth
the procedures governing the Change of Control Offer as required by the
Indenture.

            (b) If the Company or a Subsidiary consummates any Asset Sales, when
the aggregate amount of Excess Proceeds exceeds $10 million, the Company shall
commence an offer to all Holders of Notes (as "Asset Sale Offer") pursuant to
Section 3.09 of the Indenture to purchase the maximum principal amount of Notes
that may be purchased out of the Excess Proceeds at an offer price in cash in an
amount equal to 100% of the principal amount thereof plus accrued and unpaid
interest and Liquidated Damages thereon, if any, to the date fixed for the
closing of such offer, in accordance with the procedures set forth in the
Indenture. To the extent that the aggregate amount of Notes tendered pursuant to
an Asset Sale Offer is less than the Excess Proceeds, the Company (or such
Subsidiary) may use such deficiency for general corporate purposes. If the
aggregate principal amount of Notes surrendered by Holders thereof exceeds the
amount of Excess Proceeds, the Trustee shall select the Notes to be purchased on
a pro rata basis. Holders of Notes that are the subject of an offer to purchase
will receive an Asset Sale Offer from the Company prior to any related purchase
date and may elect to have such Notes purchased by completing the form entitled
"Option of Holder to Elect Purchase" on the reverse of the Notes.

            8. NOTICE OF REDEMPTION. Notice of redemption will be mailed at
least 30 days but not more than 60 days before the redemption date to each
Holder whose Notes are to be redeemed at its registered address. Notes in
denominations larger than $1,000 may be redeemed
<PAGE>   5
in part but only in whole multiples of $1,000, unless all of the Notes held by a
Holder are to be redeemed. On and after the redemption date interest ceases to
accrue on Notes or portions thereof called for redemption.

            9. DENOMINATIONS, TRANSFER, EXCHANGE. The Notes are in registered
form without coupons in denominations of $1,000 and integral multiples of
$1,000. The transfer of Notes may be registered and Notes may be exchanged as
provided in the Indenture. The Registrar and the Trustee may require a Holder,
among other things, to furnish appropriate endorsements and transfer documents
and the Company may require a Holder to pay any taxes and fees required by law
or permitted by the Indenture. The Company need not exchange or register the
transfer of any Note or portion of a Note selected for redemption, except for
the unredeemed portion of any Note being redeemed in part. Also, the Company
need not exchange or register the transfer of any Notes for a period of 15 days
before the mailing of a notice of redemption a selection of Notes to be redeemed
or during the period between a record date and the corresponding Interest
Payment Date.

            10. PERSONS DEEMED OWNERS. The registered Holder of a Note may be
treated as its owner for all purposes under the Indenture.

            11. AMENDMENT, SUPPLEMENT AND WAIVER. Subject to certain exceptions,
the Indenture, the Subsidiary Guarantees or the Notes may be amended or
supplemented with the consent of the Holders of at least a majority in principal
amount of the then outstanding Notes and Additional Notes, if any, voting as a
single class, and any existing default or compliance with any provision of the
Indenture, the Subsidiary Guarantees or the Notes may be waived with the consent
of the Holders of a majority in principal amount of the then outstanding Notes
and Additional Notes, if any, voting as a single class. Without the consent of
any Holder of a Note, the Indenture, the Subsidiary Guarantees or the Notes may
be amended or supplemented to cure any ambiguity, defect or inconsistency, to
provide for uncertificated Notes in addition to or in place of certificated
Notes, to provide for the assumption of the Company's or Subsidiary Guarantor's
obligations to Holders of the Notes in case of a merger or consolidation, to
make any change that would provide any additional rights or benefits to the
Holders of the Notes or that does not adversely affect the legal rights under
the Indenture of any such Holder, to comply with the requirements of the SEC in
order to effect or maintain the qualification of the Indenture under the Trust
Indenture Act, to provide for the Issuance of Additional Notes in accordance
with the limitations set forth in the Indenture, or to allow any Guarantor to
execute a supplemental indenture to the Indenture and/or a Note Guarantee with
respect to the Notes.

            12. DEFAULTS AND REMEDIES.

            (a) Events of Default under the Indenture include: (i) default for
30 days in the payment when due of interest on, or Liquidated Damages with
respect to, the Notes (whether or not prohibited by the subordination provisions
of the Indenture); (ii) default in payment when due of the principal of or
premium, if any, on the Notes (whether or not prohibited by the subordination
provisions of the Indenture); (iii) failure by the Company or any of its
Subsidiaries to comply with the provisions of Sections 4.10 and 5.01 of the
Indenture; (iv) failure by the Company or any of its Subsidiaries for 30 days
after notice by the Trustee or by the Holders of at least 25% in principal
amount of Notes to comply with any of its other agreements in the
<PAGE>   6
Indenture; (v) default under any mortgage, indenture or instrument under which
there is issued and outstanding any Indebtedness for money borrowed by the
Company or any of its Restricted Subsidiaries (or the payment of which is
guaranteed by the Company or any of its Restricted Subsidiaries) whether such
Indebtedness or guarantee now exists, or is created after the date of the
Indenture, if that default (a) is caused by a failure to pay principal at the
final stated maturity of such Indebtedness (a "Payment Default") or (b) results
in the acceleration of such Indebtedness prior to its express maturity and, in
each case, the principal amount of any such Indebtedness, together with the
principal amount of any other such Indebtedness under which there has been a
Payment Default or the maturity of which has been so accelerated, aggregates
$25.0 million or more; (vi) failure by the Company or any of its Restricted
Subsidiaries to pay final judgments aggregating in excess of $25.0 million,
which judgments are not paid, discharged or stayed for a period of 90 days;
(vii) except as permitted by the Indenture, any Subsidiary Guarantee by a
Guarantor that is a Significant Subsidiary shall be held in any judicial
proceeding to be unenforceable or invalid or shall cease for any reason to be in
full force and effect or any Guarantor that is a Significant Subsidiary, or any
Person acting on behalf of any Guarantor that is a Significant Subsidiary, shall
deny or disaffirm its obligations under its Subsidiary Guarantee; and (viii)
certain events of bankruptcy or insolvency with respect to the Company or any of
its Significant Subsidiaries.

            (b) If any Event of Default occurs and is continuing, the Trustee,
upon request of the Holders of at least 25% in principal amount of the Notes
then outstanding, or the Holders of at least 25% in principal amount of the
Notes then outstanding may declare all the Notes to be due and payable by notice
in writing to the Company and the Trustee specifying the respective Event of
Default and that such notice is an Acceleration Notice, and the same (i) shall
become immediately due and payable or (ii) if there are any accounts outstanding
under the Credit Agreement, shall become immediately due and payable upon the
first to occur of (x) an acceleration under the Credit Agreement or (y) five
Business Days after receipt by the Company and the Representative under the
Credit Agreement of such Acceleration Notice but only if such Event of Default
is then continuing. Notwithstanding the foregoing, in the case of an Event of
Default arising from certain events of bankruptcy or insolvency with respect to
the Company, all outstanding Notes shall become due and payable without further
action or notice. Holders may not enforce the Indenture or the Notes except as
provided in the Indenture. Subject to certain limitations, Holders of a majority
in principal amount of the then outstanding Notes may direct the Trustee in its
exercise of any trust or power. The Trustee may withhold from Holders of the
Notes notice of any continuing Default or Event of Default (except a Default or
Event of Default relating to the payment of principal or interest) if it
determines that withholding notice is in their interest. The Holders of a
majority in aggregate principal amount of the then outstanding Notes by notice
to the Trustee may on behalf of the Holders of all of the Notes waive any
existing Default or Event of Default and its consequences under the Indenture,
except a continuing Default or Event of Default in the payment of interest on,
or principal of, the Notes. The Company shall deliver to the Trustee annually a
statement regarding compliance with the Indenture, and the Company, upon
becoming aware of any Default or Event of Default, deliver to the Trustee a
statement specifying such Default or Event of Default.

            13. SUBORDINATION. Each Holder by accepting a Note agrees that the
Indebtedness evidenced by the Note is subordinated in right of payment, to the
extent and in the manner provided in Article 10 of the Indenture, prior to the
payment in full in cash or Cash
<PAGE>   7
Equivalents (other than Cash Equivalents of the type referred to in clauses
(iii) and (iv) of the definition thereof) of all Senior Debt (whether
outstanding on the date of the Indenture or thereafter created, incurred,
assumed or guaranteed), and that the subordination is for the benefit of the
holders of Senior Debt.

            14. SUBSIDIARY GUARANTEES. The payment of principal of, premium, and
interest and Liquidated Damages, if any, on the Notes are unconditionally
guaranteed, jointly and severally, on a senior subordinated basis by the
Guarantors.

            15. TRUSTEE DEALINGS WITH COMPANY. The Trustee, in its individual or
any other capacity, may make loans to, accept deposits from, and perform
services for the Company or its Affiliates, and may otherwise deal with the
Company or its Affiliates, as if it were not the Trustee.

            16. NO RECOURSE AGAINST OTHERS. A director, officer, employee,
incorporator or shareholder, of the Company or any Guarantor, as such, shall not
have any liability for any obligations of the Company or any Guarantor under the
Notes, any Subsidiary Guarantee or the Indenture or for any claim based on, in
respect of, or by reason of, such obligations or their creation. Each Holder by
accepting a Note waives and releases all such liability. The waiver and release
are part of the consideration for the issuance of the Notes.

            17. AUTHENTICATION. This Note shall not be valid until authenticated
by the manual signature of the Trustee or an authenticating agent.

            18. ABBREVIATIONS. Customary abbreviations may be used in the name
of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (=
tenants by the entirety), JT TEN (= joint tenants with right of survivorship and
not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to
Minors Act).

            19. ADDITIONAL RIGHTS OF HOLDERS OF RESTRICTED GLOBAL NOTES AND
RESTRICTED DEFINITIVE NOTES. In addition to the rights provided to Holders of
Notes under the Indenture, Holders of Initial Notes shall have all the rights
set forth in the Registration Rights Agreement or, in the case of Additional
Notes, Holders of Restricted Global Notes and Restricted Definitive Notes shall
have the rights set forth in one or more registration rights agreements, if any,
between the Company and the other parties thereto, relating to rights given by
the Company to the purchasers of any Additional Notes.

            20. CUSIP NUMBERS. Pursuant to a recommendation promulgated by the
Committee on Uniform Security Identification Procedures, the Company has caused
CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP numbers
in notices of redemption as a convenience to Holders. No representation is made
as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of redemption and reliance may be placed only on the
other identification numbers placed thereon.

            The Company shall furnish to any Holder upon written request and
without charge a copy of the Indenture and/or the Registration Rights Agreement.
Requests may be made to:
<PAGE>   8
            IASIS Heathcare Corporation
            113 Seaboard Lane
            Suite A-200
            Franklin, Tennessee  37067
            Telecopier No.: (615) 846-3006
            Attention:  General Counsel

            21. GOVERNING LAW. This Indenture, the Notes and the Subsidiary
Guarantees shall be governed by, and construed in accordance with, the law of
the state of New York, without regard to conflicts of law principals thereof.
<PAGE>   9
                           ASSIGNMENT FORM

To assign this Note, fill in the form below: (I) or (we) assign and transfer
this Note to


_______________________________________________________________________________
            (Insert assignee's soc. sec. or tax I.D. no.)


_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________
(Print or type assignee's name, address and zip code)

and irrevocably appoint _______________________________________________________
to transfer this Note on the books of the Company. The agent may substitute
another to act for him.


_______________________________________________________________________________

Date: ______________
                                    Your Signature: ___________________________
                                    (Sign exactly as your name appears on the
                                    face of this Note)

                                    Tax Identification No: ____________________


                                    SIGNATURE GUARANTEE:


                                    ________________________________

                                    Signatures must be guaranteed by an
                                    "eligible guarantor institution" meeting the
                                    requirements of the Registrar, which
                                    requirements include membership or
                                    participation in the Security Transfer Agent
                                    Medallion Program ("STAMP") or such other
                                    "signature guarantee program" as may be
                                    determined by the Registrar in addition to,
                                    or in substitution for, STAMP, all in
                                    accordance with the Securities Exchange Act
                                    of 1934, as amended.
<PAGE>   10
                       OPTION OF HOLDER TO ELECT PURCHASE

            If you want to elect to have this Note purchased by the Company
pursuant to Section 4.10 or 4.15 of the Indenture, check the box below:

            [ ] Section 4.10                  [ ] Section 4.15

            If you want to elect to have only part of the Note purchased by the
Company pursuant to Section 4.10 or Section 4.15 of the Indenture, state the
amount you elect to have purchased:
$__________

Date: ___________
                                    Your Signature:____________________________
                                    (Sign exactly as your name appears on the
                                    face of this Note)

                                    Tax Identification No:_____________________


                                    SIGNATURE GUARANTEE:


                                    _____________________________________

                                    Signatures must be guaranteed by an
                                    "eligible guarantor institution" meeting the
                                    requirements of the Registrar, which
                                    requirements include membership or
                                    participation in the Security Transfer Agent
                                    Medallion Program ("STAMP") or such other
                                    "signature guarantee program" as may be
                                    determined by the Registrar in addition to,
                                    or in substitution for, STAMP, all in
                                    accordance with the Securities Exchange Act
                                    of 1934, as amended.
<PAGE>   11
              SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL NOTE

            The following exchanges of a part of this Global Note for an
interest in another Global Note or for a Definitive Note, or exchanges of a part
of another Global Note or Definitive Note for an interest in this Global Note,
have been made:

<TABLE>
<CAPTION>
                                                                      Principal Amount
                      Amount of decrease      Amount of increase     of this Global Note        Signature of
                         in Principal            in Principal         following such        authorized signatory
                        Amount of this          Amount of this           decrease              of Trustee or
Date of Exchange         Global Note             Global Note          (or increase)           Note Custodian
----------------         -----------             -----------          --------------           --------------
<S>                   <C>                     <C>                    <C>                    <C>


</TABLE>