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About HHS

The Department of Health and Human Services (HHS) is the United States government’s principal agency for protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.

HHS represents almost a quarter of all federal outlays, and it administers more grant dollars than all other federal agencies combined. HHS’ Medicare program is the nation’s largest health insurer, handling more than 1 billion claims per year. Medicare and Medicaid together provide health care insurance for one in four Americans.

HHS works closely with state and local governments, and many HHS-funded services are provided at the local level by state or county agencies, or through private sector grantees. The Department’s programs are administered by 11 operating divisions, including eight agencies in the U.S. Public Health Service and three human services agencies. The department includes more than 300 programs, covering a wide spectrum of activities. In addition to the services they deliver, the HHS programs provide for equitable treatment of beneficiaries nationwide, and they enable the collection of national health and other data.

Departmental leadership is provided by the Office of the Secretary. Also included in the Department is the Office of the Assistant Secretary for Health, the Office of Public Health and Science, the Office of the HHS Inspector General and the HHS Office for Civil Rights. In addition, the Program Support Center, a self-supporting division of the Department, provides administrative services for HHS and other federal agencies.

Historical Highlights and Past Secretaries

HHS Organizational Chart


HHS Operating & Staff Divisions

Operating Divisions

The Department of Health and Human Services is the principal agency for protecting the health of all Americans. It is comprised of the Office of the Secretary and 11 operating divisions. The agencies perform a wide variety of tasks and services, including research, public health, food and drug safety, grants and other funding, health insurance, and many others.

See a detailed list of HHS’s Operating Divisions

Staff Divisions

The subdivisions of the Office of the Secretary provide direct support for the Secretary’s initiatives.

See a detailed list of HHS’s Staff Divisions

Regional Offices

U.S. Department of Health & Human Services Regional Map Region 1Region 2Region 3Region 4Region 5Region 6Region 7Region 8Region 9Region 10Region 10

Text Version



Assistance and Information

View a list of HHS resources arranged by topic, operating division and program office publications contacts, and frequently asked questions, and learn how to request information

  • Guide to Information Resources
    Read online information, learn how to request information, and find operating divisions’ and program offices’ publications contacts.
  • HHS Electronic FOIA Reading Room
    Locate certain agency manuals, specific agency policy statements, opinions made in adjudication of cases, and an index of records released by FOIA that are likely to become the subject of subsequent FOIA requests.
  • Doing Business with the Department
    Learn about the HHS Small Business Program, vendor outreach events, active contracts, forecast of contracting opportunities, and program policies and procedures.
  • Frequently Asked Questions (FAQs) About HHS
    Find answers to your questions about the Department and the Secretary.