Since 1964, CHOC Children’s has been steadfastly committed to providing the highest quality medical care to children. Affiliated with the University of California, Irvine, our regional pediatric healthcare network includes a state-of-the-art 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, more than 100 additional programs and services, a pediatric residency program, and four centers of excellence – The CHOC Children’s Heart, Neuroscience, Orthopaedic and Hyundai Cancer Institutes.