Dr. Guier is in-network with all insurances except for Medi-Cal, Brown & Toland, and Sutter Health. Christian A. Guier is a vibrant and detail-oriented Board Certified orthopedic surgeon working in San Francisco. Dr. Guier's ongoing training and experience provides him with the ability to treat a wide range and variety of problems involving all parts of the musculoskeletal system (neck, shoulders, elbows, wrists, hands, back, hips, knees, ankles and feet). He specializes in sports trauma.