Centers for Medicare and Medicaid Services CMS Zentren für Medicare und Medicaid Services Centres for Medicare and Medicaid Services Centros de Servicios de Medicare y Medicaid Centros de Servicios de Medicare y Medicaid Centres pour les services Medicare et Medicaid מרכזי שירותי מדיקר ומדיקייד मेडिकेयर और मेडिकेडेड सेवा केंद्र メディケアおよびメディケイドサービスセンター Centros de Serviços de Medicare e Medicaid 美国医疗保险和医疗补助服务中心 CMS Centers for Medicare and Medicaid Services The Centers for Medicare & Medicaid Services (CMS), previously known as the Health Care Financing Administration (HCFA), is a federal agency within the United States Department of Health and Human Services (HHS) that administers the Medicare program and works in partnership with state governments to administer Medicaid, the Children's Health Insurance Program (CHIP), and health insurance portability standards.