He received a bachelor of arts degree with a major in chemistry from the University of Kansas in 1951 and was selected to the Phi Beta Kappa honorary scholastic fraternity.

He completed his residency training in internal medicine at Wilford Hall USAF Medical Center, Lackland Air Force Base, Texas, in 1965.

Miller was appointed assistant clinical professor at the University of California School of Medicine in 1968 and was elected to a fellowship in the American College of Physicians in 1972.

After receiving his commission as a first lieutenant in October 1956, he was assigned to the USAF Hospital, Williams Air Force Base, Arizona.

He re-entered the Air Force with an assignment at Wilford Hall for specialty training in internal medicine.

In March 1980 he assumed command of Malcolm Grow USAF Medical Center, Andrews Air Force Base, Maryland.