Rady Children's Hospital-San Diego is the largest children's hospital in California and provides services to the San Diego, southern Riverside and Imperial counties. It is affiliated with the UC San Diego School of Medicine. Rady Children's is a Level I Pediatric Trauma Center. In 2011, Rady Children's Hospital was ranked in all 10 specialties by U.S. New and World Report. The specialties were: Cancer, Cardiology & Heart Surgery, Diabetes & Endocrinology, Gastroenterology, Neonatology, Nephrology, Neurology & Neurosurgery, Orthopedics, Pulmonology, and Urology.