Description The Surgeon General of the Air Force is the senior-most Medical Service officer in the United States Department of the Air Force and is the principal medical advisor for both the United States Air Force and United States Space Force. In recent times, this has been a lieutenant general who serves as head of the United States Air Force Medical Service (AFMS). The Surgeon General is usually the senior Medical Corps officer, but acting surgeons general have been from other branches of the medical service. This coins dimensions are 1.75 inch in diameter.