Andrew A. Brooks Uses in SCHEDULE ACENTERS Clause

SCHEDULE ACENTERS from Purchase Agreement

THIS MANAGEMENT RIGHTS PURCHASE AGREEMENT (Agreement), dated as of July 27, 2005, is by and among Parthenon Management Partners, LLC, a California limited liability company (the Company), Andrew A. Brooks, M.D. and Randhir S. Tuli, both residents of the State of California (each an Owner and, collectively, the Owners) (the Company and the Owners being, collectively, the Sellers) and SymbionARC Management Services, Inc., a Tennessee corporation (Purchaser). The Company, Owners and Purchaser are sometimes referred to herein individually as a Party and collectively as the Parties. Symbion Ambulatory Resource Centres, Inc., a Tennessee corporation (SARC), joins herein solely for the purposes of manifesting its agreement with Article VIII hereof.

SCHEDULE ACENTERS. Beverly: 1. 9575 Brighton Way, Suite 100, Beverly Hills, CA 90210. 2. 8670 Wilshire Boulevard, Suite 300, Beverly Hills, CA 90211.] [Encino: 16501 Ventura Boulevard, Suite 103, Encino, CA 91436] [Irvine: 15825 Laguna Canyon Road, Suite 200, Irvine, CA 92618.] [Arcadia: 51 North Fifth Avenue, Suite 101, Arcadia, CA 91006.] [Thousand Oaks: 696 Hampshire Road, Thousand Oaks, CA 91361.] [Van Nuys: 6815 Noble Avenue, Van Nuys, CA 91405.]