Care1st Health Plan Arizona provides government-sponsored managed care services to families, children, seniors and individuals with complex medical needs primarily through Medicaid (Care1st Health Plan Arizona), Medicare Advantage (WellCare) and Medicare Prescription Drug Plans (WellCare) across the state of Arizona. Care1st Health Plan Arizona and WellCare are wholly owned subsidiaries of Centene Corporation, a leading multi-national healthcare enterprise committed to helping people live healthier lives.