Dr. Samuel R. Rosenfeld is a board-certified orthopedic surgeon specializing in pediatric orthopaedic surgery. He has been an active staff member at CHOC Hospital Orange and CHOC Mission Hospital since 1983. Dr. Rosenfeld serves as the Director of the Spina Bifida Clinic at Rancho Los Amigos National Rehabilitation Center and holds the position of Clinical Associate Professor in the Department of Orthopaedic Surgery at the University of California, Irvine. He is a national expert in neuromuscular diseases and directs the Spina Bifida Clinic, Muscular Dystrophy Clinic, and Spasticity Clinics at CHOC Hospital. Dr. Rosenfeld has held leadership roles, including President of the Medical Staff at CHOC Hospital and positions within the American Academy of Orthopaedic Surgery and the California Orthopedic Association.