Dr. William Null is an orthopaedic surgeon practicing in Boynton Beach, FL. Dr. Null specializes in the diagnosis, treatment and rehabilitation of injuries, diseases and disorders of the bodys musculoskeletal system. As an orthopaedic surgeon, Dr. Null tends to bones, ligaments, muscles, joints, nerves and tendons. Orthopaedic surgeons can specialize in certain areas like the hand, spine, hip, foot and ankle, shoulder and elbow or the knee.