Gregory S. DiFelice, MD

Dr. Widmann is Professor of Orthopedic Surgery and has served as Chief of the Pediatric Orthopedic Surgery Service at HSS since 2004. Dr. Widmann specializes in the surgical and nonsurgical treatment of pediatric spinal deformity and pediatric limb deformity. Dr. Widmann is an expert pediatric spinal deformity surgeon and pediatric limb deformity surgeon with established clinical and research expertise, and has published over 50 peer-reviewed articles and multiple book chapters. Dr. Widmann is focused on providing state-of-the-art surgical and nonsurgical management for pediatric patients with complex deformities.

Dr. Rawlins is a board certified orthopedic spine surgeon with a comprehensive practice that spans the entire gamut of spinal disorders from cervical (neck) spine to scoliosis in both the adult and pediatric population. He graduated from the Columbia University School of Engineering and Applied Science with both bachelors and masters degrees in applied mechanics. He received his doctor of medicine degree from Cornell University Medical School, and then completed his orthopaedic residency at Columbia Presbyterian Medical Center. He received specialized fellowship training in spine surgery at the world renowned Minnesota Spine Center.

Dr. Sink is Chief of the Hip Preservation Service at HSS. He specializes in the treatment of hip disorders, such as hip dysplasia, in patients ranging from newborns to adults.