Air Force Surgeon General visits DGMC Published Feb. 14, 2020 60th Air Mobility Wing Public Affairs TRAVIS AIR FORCE BASE, California -- U.S. Air Force Lt. Gen. Dorothy Hogg, Air Force Surgeon General, and Chief Master Sgt. G. Steve Cum, Chief, Medical Enlisted Force and Enlisted Corps Chief, visited David Grant USAF Medical Center, Travis Air Force Base, California.