COA Member Directory Keywords: Advanced Search Directory View All Listings Sort By:Default Last Name ↓ Medical Group ↑ Medical Group City Neil Tayyab, M.D. Name Neil Tayyab, M.D. Status Active Medical Group Girard Ortho Surgeons Medical Group City San Diego Phone 858-455-6460 Subspecialty General, Spine, WC Treatment Elly Susannah La Roque, M.D. Name Elly Susannah La Roque, M.D. Status Active Medical Group Golden Gate Orthopaedic Surgery/UCSF City San Francisco Phone 415-409-1367 Subspecialty Knee, Shoulder/Elbow, Sports Medicine, WC Medical-Legal, WC Treatment Nicholas Colyvas, M.D. Name Nicholas Colyvas, M.D. Status Active Medical Group Golden Gate Sports Medicine City San Francisco Phone 415-409-1367 Subspecialty Sports Medicine Ronald B. Perelman, M.D. Name Ronald B. Perelman, M.D. Status Active Medical Group Golden State Sports Injury City Northridge Phone 818-998-8400 Subspecialty Foot/Ankle, Hand/Wrist, Knee, Shoulder/Elbow, Spine, WC Medical-Legal, WC Treatment Ben DuBois, M.D. Name Ben DuBois, M.D. Status Active Medical Group Grossmont Orthopaedic Medical Group City La Mesa Phone 619-462-3131 Subspecialty Shoulder/Elbow, Total Joint, WC Treatment Peter B. Hanson, M.D. Name Peter B. Hanson, M.D. Status Active Medical Group Grossmont Orthopaedic Medical Group City La Mesa Phone 619-462-3131 Subspecialty Hip, Knee, Total Joint, WC Treatment Scott A. Hacker, M.D. Name Scott A. Hacker, M.D. Status Active Medical Group Grossmont Orthopedic Medical Group City La Mesa Phone 619-462-3131 Subspecialty Knee, Shoulder/Elbow, Sports Medicine, WC Medical-Legal, WC Treatment Vincent L. Gumbs, M.D. Name Vincent L. Gumbs, M.D. Status Active Medical Group Gumbs Orthopedic Medical Group City Encino Phone 818-701-9211 Subspecialty General, Sports Medicine, WC Medical-Legal, WC Treatment Stepan O. Kasimian, M.D. Name Stepan O. Kasimian, M.D. Status Active Medical Group HAAS Spine & Orthopaedics City Glendale Phone 818-500-9286 Subspecialty Spine, WC Medical-Legal, WC Treatment Dennis E. Cramer, D.O. Name Dennis E. Cramer, D.O. Status Active Medical Group Haider Spine Center City Riverside Phone 951-413-0200 Subspecialty Spine ← Previous Next →