e/List of United States Public Health Service Commissioned Corps four-star admirals

Information
has gloss	eng: There have been 4 four-star admirals in the history of the U.S. Public Health Service Commissioned Corps. All four were directly commissioned into the regular corps. One was already an officer in the regular corps and the other three were originally civilians who were appointed to the regular corps and to grade upon taking office.
lexicalization	eng: List of United States Public Health Service Commissioned Corps four-star admirals
instance of	e/4 star rank