COA Member Directory Keywords: Advanced Search Directory View All Listings Sort By:Default Last Name Medical Group City Gregory Horner, M.D. Name Gregory Horner, M.D. Status Active Medical Group Tri-Valley Orthopedic Specialists City Pleasanton Phone 925-463-0470 Subspecialty General, Hand/Wrist Gregory J. Adamson, M.D. Name Gregory J. Adamson, M.D. Status Active Medical Group Congress Medical Associates City Pasadena Phone 626-795-8051 Subspecialty Shoulder/Elbow, Sports Medicine Gregory J. Hanker, M.D. Name Gregory J. Hanker, M.D. Status Active Medical Group SCOI City Van Nuys Phone 818-901-6600 Subspecialty Hand/Wrist, Sports Medicine, WC Treatment Gregory James Loren, M.D. Name Gregory James Loren, M.D. Status Active Medical Group CORE Orthopaedic Medical Center City Encinitas Phone 760-943-6700 Subspecialty Sports Medicine Gregory M. Yoshida, M.D. Name Gregory M. Yoshida, M.D. Status Active Medical Group Orthopaedic Institute Medical Group City Torrance Phone 310-542-3472 Subspecialty Spine Gregory Northrop, M.D. Name Gregory Northrop, M.D. Status Active Medical Group Risser Orthopaedic Group City Pasadena Phone 626-797-2002 Subspecialty Knee, Shoulder/Elbow, Sports Medicine, Total Joint Gregory R. Mack, M.D. Name Gregory R. Mack, M.D. Status Semi-Retired Medical Group San Diego Hand Specialists City San Diego Phone 858-715-9200 Subspecialty Hand/Wrist, WC Medical-Legal Gregory V. Gomez, M.D. Name Gregory V. Gomez, M.D. Status Young Orthopedist Medical Group Emanate Health Medical Group City Covina Phone 909-225-9040 Subspecialty WC Treatment Grietje Van Dyk, M.D. Name Grietje Van Dyk, M.D. Status Semi-Retired Medical Group Los Alamitos Orthopaedics City Los Alamitos Phone 562-314-1400 Subspecialty Arthritis, Foot/Ankle, General, Hand/Wrist, Knee, Shoulder/Elbow, Sports Medicine, Total Joint, Trauma Gus G. Gialamas, M.D. Name Gus G. Gialamas, M.D. Status Active Medical Group Sea View Orthopedic Medical Group City San Clemente Phone 949-661-2423 Subspecialty General, Hip, Knee, Pediatrics, Shoulder/Elbow, Sports Medicine, Total Joint, Trauma ← Previous Next →