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Methodist Orthopaedic Surgical Associates

We are the bone docs

Methodist Orthopaedic Surgical Associates provides a complete range of orthopaedic services in the Dallas area, specializing in adult joint reconstruction, sports medicine and athletic injuries, shoulder and knee arthroscopic surgery, minimally invasive spinal surgery, trauma, foot and ankle surgery, surgery of the shoulder and upper extremity, as well as fracture and soft tissue injury treatment.

We are on call 24 hours a day, and our mission is to provide our patients with the highest quality of orthopaedic services in a compassionate and caring manner.

In 1985, Oak Cliff Orthopaedic Associates (OCOA) was founded by Dr. Phil Berry and Dr. Antonio Arazoza. Dr. Berry has practiced at Methodist Dallas Medical Center since 1971. The group, now known as Methodist Orthopaedic Surgical Associates (MOSA), is comprised of five orthopaedic surgeons and one podiatrist, to have a full spectrum of musculoskeletal care. Dr. Miguel A. Hernandez III joined the group in 1997 and Dr. Ray F. Aronowitz joined the group in 1998. They both are general orthopaedic surgeons. In 2008, Dr. Jon Nathanson, podiatrist, joined the group. Dr. Alexander Cho, shoulder specialist, join the group in 2009. Dr. Edward Mairura, general orthopaedic surgeon, joined the group in 2016. Dr. John Harris, joined the group in 2017 after completing his Sports Fellowship.

All five staff orthopaedic surgeons are Board Certified or Board Eligible, by the American Board of Orthopaedic Surgery, meaning they have exhibited their knowledge in the field by passing written and oral examinations given by eminent orthopaedists around the country. Dr. Nathanson has over 20 years of podiatric experience in the military.