The power of the Executive Branch is vested in the President of the United States, who also acts as head of state and Commander-in-Chief of the armed forces. The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet. The Vice President is also part of the Executive Branch, ready to assume the Presidency should the need arise.
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DEPARTMENT OF HEALTH AND HUMAN SERVICES
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. Agencies of HHS conduct health and social science research, work to prevent disease outbreaks, assure food and drug safety, and provide health insurance.
In addition to administering Medicare and Medicaid, which together provide health coverage to one in four Americans, HHS also oversees the National Institutes of Health, the Food and Drug Administration, and the Centers for Disease Control.
https://www.whitehouse.gov/about-the-white-house/our-government/the-executive-branch/