Fairfax? Pentagon?
Besides the Pentagon, COL McDaniel could have been assigned to the Ft. Belvoir Army Hospital or Walter Reed/Bethesda Naval Hospital if he was in a practicing doctor slot and not in an administrator billet.
Or he could have split his time between the two locations. When I had a procedure done, I was given the options of having Dr. LTC “X” do it at Ft. Belvoir or Walter Reed based upon where there was an opening that worked for me.