Chief Medical Officer and Lead Flight Surgeon for Axiom Space, Inc.

Smith Johnston, from Woodstock, Georgia, received a Bachelor of Science in biology in 1976 and a Doctor of Medicine in 1981 from Emory University in Atlanta, Georgia. From 1984 to 1990, Dr. Johnston completed residencies in Internal and Aerospace Medicine from Wright State University, as well as a Master’s of Science in Aerospace and Preventive Medicine.

Dr. Johnston is the Chief Medical Officer and Lead Flight Surgeon for Axiom Space, Inc. in Houston, Texas. He is a member of the associate clinical faculty at the University of Texas Medical Branch, Department of Preventive, Occupational and Environmental Medicine in Galveston, Texas. He has spent most of his career as a medical officer and flight surgeon for the NASA Medical Operations Branch at the NASA Johnson Space Center.  Clinically supporting 25 Shuttle missions and 2 ISS Expedition missions. Dr. Johnston is board certified in Aerospace Medicine from the American Board of Preventive Medicine, and a fellow of the Aerospace Medical Association. Dr. Johnston’s expertise centers on taking the innovations discovered from the US, International, and Commercial Space Programs to benefit not only the lives of the astronauts and cosmonauts, but also his earth-bound patients.