what is the united states public health service
United States Public Health Service The United States Public Health Service (PHS) is a division of the Department of Health and Human Services concerned with public health. It contains eight out of the department's eleven operating divisions. The Assistant Secretary for Health (ASH) oversees the PHS.  The Public Health Service Commissioned Corps (PHSCC) is the federal uniformed service of the PHS, and is one of the seven uniformed services of the United States.