HAAS Spine & Orthopaedics is a multispecialty practice whose physicians have extensive expertise in diagnosing and treating spinal disorders. The practice has convenient offices in Glendale, Santa Ana, and Upland, California, where patients benefit from the highest quality orthopedic care. The primary interests of leading HAAS Spine & Orthopaedics surgeon Stepan Kasimian, MD, include degenerative spine disease and spinal abnormalities.