Phoenix Children's | 68,691 followers on LinkedIn. Phoenix Children’s is one of the nation's fastest-growing pediatric health systems. | Phoenix Children's is one of the nation's largest pediatric health systems. It comprises Phoenix Children's Hospital — Thomas Campus, Phoenix Children's — East Valley Campus, Phoenix Children's – Avondale Campus, Phoenix Children's Hospital — Arrowhead Campus, four pediatric specialty and urgent care centers, 12 community pediatric practices, 20 outpatient clinics, two ambulatory surgery centers and seven community-service outpatient clinics throughout the state of Arizona. The system provides world-class inpatient, outpatient, trauma, emergency and urgent care and has been serving children and families for 40 years.