HHS Agencies & Offices
HHS has 11 operating divisions, including eight agencies in the U.S. Public Health Service and three human services agencies. These divisions administer a wide variety of health and human services and conduct life-saving research for the nation, protecting and serving all Americans.
The Office of the Secretary (OS), HHS’s chief policy officer and general manager, administers and oversees the organization, its programs, and its activities. The Deputy Secretary and a number of Assistant Secretaries and Offices support OS.
The Administration for Children & Families promotes the economic and social well-being of families, children, individuals and communities through a range of educational and supportive programs in partnership with states, tribes, and community organizations.
The Administration for Community Living increases access to community support and resources for the unique needs of older Americans and people with disabilities.
The Agency for Healthcare Research and Quality's mission is to produce evidence to make health care safer, higher quality, more accessible, equitable, and affordable, and to work within HHS and with other partners to make sure that the evidence is understood and used.
The Agency for Toxic Substances and Disease Registry prevents exposure to toxic substances and the adverse health effects and diminished quality of life associated with exposure to hazardous substances from waste sites, unplanned releases, and other sources of environmental pollution.
ASA provides leadership for HHS departmental management, including human resource policy and departmental operations.
ASFR provides advice and guidance to the Secretary on budget, financial management, acquisition policy and support, grants management, and small business programs. It also directs and coordinates these activities throughout the Department.
ASGA promotes the health and well-being of Americans and the world’s population by advancing HHS’s global strategies and partnerships and working with USG agencies to coordinate global health policy.
ASH advises on the nation's public health and oversees HHS' U.S. Public Service (PHS) for the Secretary.
ASL provides advice on legislation and facilitates communication between the Department and Congress.
ASPE advises on policy development and contributes to policy coordination, legislation development, strategic planning, policy research, evaluation, and economic analysis.
ASPR advises on matters related to bioterrorism and other public health emergencies.
ASPA provides centralized leadership and guidance on public affairs for HHS' staff, operating divisions, and regional offices. APSA also administers the Freedom of Information and Privacy Act.
The Centers for Disease Control and Prevention, part of the Public Health Service, protects the public health of the nation by providing leadership and direction in the prevention and control of diseases and other preventable conditions, and responding to public health emergencies.
The Centers for Medicare & Medicaid Services combines the oversight of the Medicare program, the federal portion of the Medicaid program and State Children's Health Insurance Program, the Health Insurance Marketplace, and related quality assurance activities.
DAB provides impartial review of disputed legal decisions involving HHS.
The Food and Drug Administration, part of the Public Health Service, ensures that food is safe, pure, and wholesome; human and animal drugs, biological products, and medical devices are safe and effective; and electronic products that emit radiation are safe.
The Health Resources and Services Administration improves health and health equity through access to quality services, a skilled health workforce and innovative programs.
IOS oversees the Secretary’s operations and coordinates the Secretary’s work.
The Indian Health Service, part of the Public Health Service, provides American Indians and Alaska Natives with comprehensive health services by developing and managing programs to meet their health needs.
The National Institutes of Health, part of the Public Health Service, supports biomedical and behavioral research with the United States and abroad, conducts research in its own laboratories and clinics, trains promising young researchers, and promotes collecting and sharing medical knowledge.
OCR enforces federal laws that prohibit discrimination by health care and human services providers that receive funds from HHS.
OIG protects the integrity of HHS programs as well as the health and welfare of the program participants.
IEA represents the both the government and external perspective in federal policymaking and clarifies the federal perspective to government officials and external parties.
OMHA administers nationwide hearings for the Medicare program.
OGC provides quality representation and legal advice on a wide range of highly visible national issues.
ONC provides counsel for the development and implementation of a national health information technology framework.
The Substance Abuse and Mental Health Services Administration, part of the Public Health Service, improves access and reduces barriers to high quality, effective programs and services for individuals who suffer from or are at risk for addictive and mental disorders, as well as for their families and communities.