Col John Oh is Chief of the Occupational and Environmental Health Division, Defense Health Agency Public Health, Falls Church, Virginia.

Col Oh trained in internal medicine at Penn State and general preventive medicine at Johns Hopkins.

Col Oh’s assignments in the Air Force have included flight medicine, international health, preventive medicine, AF Invisible Wounds Initiative, and public health.

Previous staff tours have included Pacific Air Forces, Air Force Medical Support Agency (now Air Force Medical Readiness Agency), Air Forces Central Command.