Program Information Orthopaedic Surgery Specialists (OSS) is a busy medical group that provides comprehensive musculoskeletal care to the greater Los Angeles area. The practice prides itself on tradition, respect, and state-of-the-art patient care. OSS is a BUSY practice and employs clinicians committed to teamwork, excellence, and personalized patient care. OSS Physical & Hand Therapy, established in September 2016, is an outpatient orthopaedic rehabilitative center comprised of a Physical Therapy Department and a Hand Therapy Department. The center offers patients and the community excellent rehabilitative care in coordination with OSS surgeons and providers.