Children's Health of Orange County or CHOC is a pediatric healthcare system based in Orange County, California, is committed to being a leading destination for children’s health by providing exceptional and innovative care. Its flagship hospital, known by its acronym CHOC Hospital, is a pediatric acute care hospital located in Orange, California. The hospital has 334 beds and is affiliated with the University of California, Irvine School of Medicine. The hospital provides comprehensive pediatric specialties and subspecialties to pediatric patients aged 0–21 throughout Orange County and the Southern California area. CHOC Hospital also features a Level I Pediatric Trauma Center, the only of such in Orange County. The regional pediatric healthcare network includes a 334-bed main hospital facility in the City of Orange, and a hospital-within-a-hospital in Mission Viejo. CHOC also offers many primary and specialty care clinics, over 100 additional programs and services, and a pediatric residency program.