<PAGE>

                                 EXHIBIT 10.10

                             EMPLOYMENT AGREEMENT

This Agreement, dated as of ____________, 199_ between National Surgery Centers,
Inc., a Delaware corporation (hereafter referred to as the "Company"), and Bryan
S. Fisher (hereinafter referred to as the "Employee").

                                   Recitals

The Employee has been employed by the Company, for a substantial period of time
and currently serves as the Chief Financial Officer, Vice President, Secretary,
and Treasurer of the Company. Because of the Employee's extensive experience
with the Company, the Company wishes to have the Employee available to perform
duties for the Company substantially similar to those currently being performed
by him for the Company, and to contribute to the Company's growth and success as
he has for the Company in the past.  The Employee is willing to commit to
perform his services for the Company upon the terms and conditions set forth
herein.

                                   Covenants

NOW, THEREFORE, in consideration of the mutual promises herein contained and
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto agree as follows:

1.   Employment.  The Company hereby agrees to employ Employee as Chief
     Financial Officer, Vice President, Secretary, and Treasurer of the Company
     to perform the duties described herein, and Employee hereby accepts such
     employment on the terms and conditions stated herein.

2.   Term of Employment.  Subject to provisions for termination set forth
     herein, the term of Employee's employment hereunder shall commence on the
     date hereof and shall expire on the first anniversary of such date (the
     "Employment Term"); provided, however, that commencing on the date one year
     after the date hereof, and on each annual anniversary of such date (the
     date one year after the date hereof and each annual anniversary of such
     date, is hereinafter referred to as a "Renewal Date"), the Employment Term
     shall be automatically extended, unless at least 60 days prior to the
     Renewal Date the Company shall give notice that the Employment Term shall
     not be so extended.

3.   Duties of Employee.  Employee shall be Chief Financial Officer, Vice
     President, Secretary, and Treasurer of the Company and shall perform such
     duties and responsibilities for the Company as may be assigned to him by
     the board of directors of the Company and which are not unreasonably
     inconsistent with the duties of Chief Financial Officer, Vice President,
     Secretary, and Treasurer, including such duties as are currently being
     performed by the Employee for the Company.  During the term of his
     employment, Employee shall devote substantially all of his business time,
     attention and energy, and his reasonable best efforts, to the interests and
     business of the Company and to the performance of his duties and
     responsibilities on behalf of the Company.
<PAGE>

4.   Compensation.  Throughout the term of Employee's employment hereunder, the
     Company shall pay Employee, for services to be rendered by him hereunder, a
     guaranteed minimum salary at an annual rate equal to that being paid by the
     Company on the date the term of employment hereunder commences, which
     salary shall not be less than $______________, less all applicable federal
     and state income tax withholding, FICA taxes and other payroll taxes. The
     guaranteed minimum salary shall be reviewed by the Company on a yearly
     basis to ascertain if any upward adjustment in the annual rate is in order,
     and if any increase is made, the new annual rate shall become the
     guaranteed minimum salary under this Section 4.

     Employee also shall be entitled to receive, during such employment
     hereunder, compensation in addition to such annual salary in the form of an
     annual bonus, grants of stock options under the Company's Amended and
     Restated 1992 Stock Option Plan ("Plan"), each such form of additional
     compensation to be paid or awarded consistent with the performance by
     Employee of his duties prescribed hereunder and to be determined by the
     board of directors of the Company. Any stock options granted under the Plan
     to Employee prior to or during the term of this Agreement pursuant to this
     Section 4 shall become immediately exercisable in the event of termination
     of Employee's employment hereunder by the Company for any reason other than
     cause as outlined in Section 8(c) hereof.

5.   Working Facilities and Fringe Benefits.  The Employee shall be furnished
     with office space, secretarial assistance and such other facilities and
     services as are appropriate to his position and adequate for the
     performance of his duties.  The Company also shall provide to Employee
     during the term of employment fringe benefits and perquisites at least
     equal to those provided to Employee immediately prior to the date hereof,
     and the Company shall not discriminate against Employee with respect to any
     vacation or holiday plan, medical, hospital, life and disability insurance
     programs, retirement and 401(k) programs and other similar welfare benefit
     and remuneration programs from time to time made available to the officers
     and key employees of the Company.

6.   Expenses.  The Company shall pay or reimburse Employee for all reasonable
     expenses actually incurred or paid by him in the performance of services
     rendered by him pursuant to this Agreement.  Such expenses shall be
     supported by the documentary evidence required to substantiate them as
     income tax deductions.

7.   Nondisclosure of Confidential Information.  Employee acknowledges that in
     his employment, he is or will be making use of, acquiring or adding to,
     confidential information of the Company, and is or will be familiar with
     the Company's business, activities, employees, customers and suppliers.
     Therefore, in order to protect such confidential information and to protect
     other employees who depend upon the Company for regular employment,
     Employee agrees that, except in connection with his employment by the
     Company, he will not during or after the term of his employment hereunder
     in any way utilize any of said confidential information and he will not
     copy, reproduce, or take with him the original or any copies of said
     confidential information and will not disclose any of said confidential
     information to anyone.

     In the event of a breach of the covenants contained in this Section 7, the
     Company shall be entitled to an injunction restraining such breach in
     addition to any other remedies provided by law.

                                       2
<PAGE>

     If any provision of this Section 7 is adjudged by a court to be invalid or
     unenforceable, the same will in no way affect any other provision of this
     Section 7 or any other part of this Agreement, the application of such
     provision in any other circumstances or the validity or enforceability of
     this Agreement. If any such provision, or any part thereof, is held to be
     unenforceable because of the duration of such provision or the area covered
     thereby, the parties agree that the court making such determination will
     have the power to reduce the duration and/or area of such provision, and/or
     to delete specific words or phrases, and in its reduced form such provision
     will then be enforceable and will be enforced.

8.   Termination by Company

     (a)  Disability.  The Company may terminate the active employment of
          the Employee if, in the reasonable judgment of the board of directors
          of the Company, he becomes unable to satisfactorily perform his duties
          and responsibilities hereunder during the term of his employment
          because of mental or physical disability. Upon such termination, the
          Employee shall be relieved of all further obligations hereunder except
          obligations pursuant to Section 7. In the event of such termination,
          the Company shall continue to pay to the Employee, until the end of
          the term of his employment hereunder, a salary at a rate equal to the
          annual rate in effect on the date of such termination (as set forth in
          Section 4). Notwithstanding the foregoing, the amounts so payable
          shall be reduced by any amounts payable to the Employee during the
          term of his employment hereunder pursuant to any disability benefit or
          wage continuation plan of the Company in effect.

     (b)  Death.  In the event of the death of the Employee during the term,
          the Company shall make, until the end of the term of employment
          hereunder, payments at a rate equal to the annual rate in effect on
          the date of death. The payments to be made under this Section 8(b)
          shall not be reduced by reason of any insurance proceeds payable
          directly to the Employee's beneficiaries or estate pursuant to
          insurance carried or provided by the Company, and shall be made to
          such beneficiary as the Employee may designate for that purpose in
          written notice given to the Secretary of the Company prior to his
          death, or if the Employee has not so designated, then to the personal
          representative of the Estate.

     (c)  Termination for Cause.  The Company may terminate the Employee's
          employment for "Cause". "Cause" shall mean (1) any act or acts of
          dishonesty by the Employee constituting a felony and resulting or
          intended to result, directly or indirectly, in an improper gain to or
          personal enrichment of the Employee at the Company's expense, or (2)
          the willful and continued failure by the Employee to substantially
          perform his duties hereunder (other than any such failure resulting
          from the Employee's disability), after written demand for substantial
          performance is delivered by the Company to the Employee specifically
          identifying the manner in which the Company believes the Employee to
          be not substantially performing his duties. For purposes of this
          paragraph, no act, or failure to act, on the Employee's part, shall be
          considered "willful" unless done, or not done, as the case may be, by
          him in bad faith and without reasonable belief that his action or
          omission was in the best interest of the Company. In the event the
          Company terminates this Agreement for cause upon giving written notice
          to the Employee and thereafter, neither the Employee, his surviving
          spouse or his estate shall be entitled to any further salary or
          compensation from the Company pursuant to this Agreement, but the
          Employee's obligations under

                                       3
<PAGE>

          Section 7 shall remain in effect. The parties agree that the
          provisions of this Section 8(c) shall not be utilized in any manner by
          the Company to avoid, negate or frustrate application of the
          provisions of Section 9 of this Agreement.

     (d)  Termination Without Cause.  In the event the Company terminates
          employment of the Employee other than by reason of termination under
          Section 8(c) hereof, the Employee shall, in consideration of the lump
          sum payment described in Section 9(d) hereof, agree that the Employee
          shall neither directly nor indirectly, for a period of one year
          following such termination engage anywhere in a fifteen mile radius of
          any ambulatory surgery center operated, managed, or being developed by
          the Company on such termination date, in the development, management,
          or direct or indirect ownership of other ambulatory surgery centers or
          in any other business which would be competitive with the business
          being conducted by the Company on such termination date, or acquire or
          retain any direct or indirect financial interest in any business which
          is so engaged, provided, however, that nothing contained in the
          foregoing shall prohibit the Employee from acquiring or retaining
          ownership of up to 1% of the outstanding shares of a publicly-held
          corporation.

9.   Termination by Employee.

     (a)  If Location of Office Changes.  In the event that, at any time during
          the term of employment, the Company, without Employee's consent,
          changes the location of the offices at which Employee works at the
          time of such change to a city more than 50 miles from its location in
          Chicago, Illinois, the Employee may terminate his employment hereunder
          by giving to the Secretary of the Company notice in writing within
          three months after this right to termination arises.

     (b)  If Responsibilities Change.  It is the intention of the parties that
          the Employee will be the Chief Financial Officer, Vice President,
          Secretary, and Treasurer of the Company during the entire term of
          employment hereunder. In the event that, at any time during the term
          hereunder, Employee, without his consent, does not have the duties and
          responsibilities similar to those at the date of commencement hereof
          (except by reason of termination under Section 8), Employee may
          terminate his employment hereunder by giving to the Secretary of the
          Company written notice of such termination within three months after
          this right to terminate arises.

     (c)  Following Change in Control.  Employee may terminate his employment
          under this Agreement in the event of a Change in Control of the
          Company, as defined herein, by giving written notice of such
          termination to the Secretary of the Company not less than six months
          nor more than twelve months following such Change in Control. For
          purposes of this Section 9(c), a "Change in Control" shall mean a
          change in control of a nature that would be required to be reported in
          response to Item 6(e) of Schedule 14A of Regulation 14A promulgated
          under the Securities Exchange Act of 1934; provided that, without
          limitation, such a Change in Control shall be deemed to have occurred
          if during any period of two consecutive years subsequent to
          ______________, 199_, individuals who at the beginning of such period
          constitute members of the board of directors cease for any reason to
          constitute at least a majority thereof, unless the nomination or
          election of each director who was not a director at the beginning of
          the period was approved by a vote of a majority

                                       4
<PAGE>

          of the directors still in office at the time of such nomination or
          election who were directors at the beginning of the period.

     (d)  Lump Sum Payment.  In the event of termination pursuant to subsections
          (a), (b) or (c) of this Section 9, or in the event the Company
          terminates employment of the Employee other than by reason of
          termination under Section 8(c) hereof, the Company shall pay to the
          Employee, in a lump sum and within 30 days of such termination, an
          amount equal to the sum of (i) the Employee's annual base salary and
          (ii) the annual bonus paid for the last full fiscal year during the
          Employment Term, or the initial annual bonus which would have been
          payable for the fiscal year in which the Employment Term commenced, as
          the case may be, by the Company.

     (e)  Reimbursement.  If a tax is imposed pursuant to Section 4999 of the
          Internal Revenue Code, or successor provision of like import, upon
          payments due under this Agreement or upon other payments to the
          Employee by the Company, the Employee shall be paid an additional
          amount calculated so as to provide the Employee, after he has paid the
          tax imposed by Section 4999 of the Code, with the same compensation he
          would have received had no tax been imposed by Section 4999. For
          purposes of this subsection (e), the term "Company" shall include any
          subsidiary, affiliate, assignee, or successor in interest of the
          Company or of such assignee or successor in interest.

10.  Assignment.  This Agreement is binding upon and shall be for the benefit of
     the successors and assigns of the Company, including any corporation or any
     other form of business organization with which the Company may merge or
     consolidate, or to which it may transfer substantially all of its assets.
     Employee shall not assign his interest in this Agreement or any part
     thereof.

11.  Consent of the Company.  Any act, request, approval, consent or opinion of
     the Company under this Agreement must be in writing and may be authorized,
     given or expressed only by resolution of the board of directors of the
     Company, or by such other person as the board of directors of the Company
     may designate.

12.  Notices.  Any notice required hereunder to be given shall be in writing and
     if:

     (a)  by the Company to Employee shall be directed to him at his address set
          forth below, or to such other address as he shall have furnished in
          writing to the Company; or

     (b)  by Employee to the Company shall be directed to National Surgery
          Centers, Inc., 30 South Wacker Drive, Suite 2302, Chicago, IL 60606,
          Attn: Secretary, or to such designee or other address as the board of
          directors shall name and have furnished in writing to Employee.

13.  Governing Law.  This Agreement shall be governed by and construed in
     accordance with the laws of the State of Illinois applicable to contracts
     made and to be performed therein.

14.  Enforcement Expenses and Arbitration.  The Company agrees to reimburse the
     Employee for all costs and expenses incurred by him (including the
     reasonable fees of his counsel) in successfully enforcing any of his rights
     under this Agreement or any claim arising out of the

                                       5
<PAGE>

          breach thereof. In addition, the parties acknowledge the relative
          economic power of the Company versus the Employee, and the ability of
          the Company to resist the conclusion of litigation should the Employee
          institute legal proceedings to enforce this Agreement or to recover
          damages for the breach thereof. In recognition of this, any
          controversy or claim arising out of or relating to this Agreement,
          including any dispute over or interpretation of the occurrence of a
          "Change in Control", as previously defined, shall be settled by
          arbitration in accordance with the Commercial Arbitration Rules of the
          American Arbitration Association, at the sole election of the
          Employee; provided, however, that an action by the Company to enforce
          its rights under Section 7 hereof shall be excluded from the
          arbitration provisions of this Section 14. Any such election by
          Employee shall be made in written notice given to the Company any time
          after such controversy or claim arises, and in the event Employee is
          served with process relating to any court proceeding concerning any
          such claim or controversy commenced by the Company, such election, to
          be effective, shall be made in written notice within 15 days of the
          time Employee is served with such process. Commencement of court
          proceedings by Employee shall be deemed an election not to arbitrate.
          In the event the Company commences court proceedings (other than an
          action by the Company solely to enforce its rights under Section 7
          hereof) and is given notice of the election to arbitrate by the
          Employee within the time period set forth above, the Company agrees to
          promptly dismiss such court proceedings and submit to arbitration. In
          the event of such arbitration, judgment upon the award rendered by the
          arbitrators may be entered in any court having jurisdiction thereof.

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


                                          NATIONAL SURGERY CENTERS, INC.
                                         By:
                                      Title:
                                    Address:

                                       6