Symbion, Inc. Nonqualified Stock Option Agreement under Stock Incentive Plan

This agreement is between Symbion, Inc. and an employee (the Participant), granting the Participant a nonqualified stock option to purchase company shares at a set price under the Symbion Stock Incentive Plan. The agreement outlines how and when the option can be exercised, transfer restrictions, and what happens if the Participant leaves the company, becomes disabled, or dies. It also addresses changes in company control and the authority of the plan committee. The option typically expires seven years from the grant date, with earlier expiration in certain circumstances.