How long does the surgeon general have to serve?

The Surgeon General serves a four-year term of office and is the highest ranking uniformed officer of the PHSCC, holding the grade of a three-star Vice Admiral while in office. However, the Surgeon General reports to the United States Assistant Secretary for Health, who himself may hold the rank of a four-star admiral within the Public Health Service Commisioned Corps. EAT THAT RONI!~