John C. Greene
About
John C. Greene was an American dentist and public health administrator. He was a rear admiral in the U.S. Public Health Service Commissioned Corps, and served as the Deputy Surgeon General of the United States under President Carter from 1978 to 1981. He was the Acting Surgeon General from January to May 1981 under Ronald Reagan. He was the highest ranking non-physician public health officer in the history of the U.S. government.