Dr David Alexander, MD, is a NASA Flight Surgeon and the Principle Medical Officer (PMO) for the Moon to Mars/Gateway program. He has supported 23 ISS and shuttle missions and Lead Crew Surgeon for 8 missions. He developed the Direct Return of Astronauts Program and recovered 38 crews. His expertise and research is in Spaceflight and Aviation Environments.
Prior to his becoming a NASA Flight Surgeon, he was a Flight Physician at Cleveland Metro Life Flight and then went on to STAT MedEVAC as the Associate Medical Director. His Air Force background also includes being a Squadron Medical Element for an F-15 squadron, Chief of Flight Medicine, and Chief of Aerospace Medicine at the 149th Fighter Wing. He is currently the Texas State Air Surgeon for the Air National Guard.
