At the Office of the Assistant Secretary for Health (OASH), we are fueled by a workforce committed to serving as the Secretary’s primary advisor on matters involving the nation’s public health. OASH oversees the U.S. Department of Health and Human Services’ key public health offices and programs (see our affiliated pages), as well as several Presidential and Secretarial advisory committees, ten regional health offices across the nation, the Office of the Surgeon General, and the U.S. Public Health Service (PHS) Commissioned Corps.