Newton Wellesley Orthopedic Associates (NWOA) We are a multi-specialty group of orthopedic surgeons. Since 1970, we have provided care to our patients for a comprehensive range of orthopedic problems. Our practice focuses on the evaluation and treatment of disorders of the bones, joints, muscles, tendons, and nerves in children and adults.Meet The Doctors‧Payment & Billing‧Contact Info‧Patient Info‧Shoulder‧Knee.