Upon completion of flight surgeon training in 1984, Brown reported to the Navy Branch Hospital in Adak, Alaska, as Director of Medical Services.

He was ultimately designated a Naval Aviator in 1990 at NAS Chase Field in Beeville, Texas, ranking number one in his class.

Naval Test Pilot School at NAS Patuxent River, Maryland as their flight surgeon, where Brown also flew the T-38 Talon.

He was qualified as the first pilot in NASA T-38 aircraft and held a Federal Communications Commission (FCC) issued Technician Class amateur radio license with the call sign KC5ZTC.

On April 21, 2001, Brown appeared on ESPN as an expert on g-force loading on the human body that led to the cancellation of the Firestone Firehawk 600 CART race.