The Public Health Achievement Medal is a decoration of the United States Public Health Service presented to members of the United States Public Health Service Commissioned Officer Corps and to members of any Uniformed Services of the United States whose accomplishments or achievements are of outstanding or unique significance to the missions of the Corps. It is the ninth-highest award awarded by the United States Public Health Service Commissioned Corps.
https://en.wikipedia.org/wiki/Public_Health_Service_Achievement_Medal