Thank you for taking the time to visit our Website. Dr. Greenbaum established Orange County Orthopaedics and Sports Medical Group in the summer of 1999 and moved to our current location in 2003. In 2003 we expanded by adding Mark Allen, MPT to our group. Both our Doctor and Physical Therapist are knowledgeable in athletics and the prevention of sports injuries. Although our physician is an Orthopaedic surgeon specializing in knees and shoulders Dr. Greenbaum treats a wide range of injuries . We are fortunate to have Specialty Surgical Center in the same building as us, where the majority of Dr. Greenbaum's outpatient surgeries take place. We hope you find this site helpful.