Because we are driven by What If.... At. St. Joseph Hospital of Orange, we are driven by What If? More Orthopedics Videos Tour our orthopedics unit Tour our orthopedics unit Dr. Smith Background for Dr. Smith Osteoarthritis featuring Julio Talesnik, M.D. Surgical Alternatives in Treating Arthritis featuring Ayaz Biviji, M.D. Jack Chen, M.D. on Health Matters Jack Chen, M.D., Orthopedic Surgeon, explores the latest advancements in back surgery.