Rear Admiral John M. Mateczun is Deputy Surgeon General of the Navy and Vice Chief, Bureau of Medicine and Surgery. He also serves as Director of the Military Health System Office of Transformation. He was appointed by the Secretary of Defense as a member of the Task Force on the Future of Military Health Care. Admiral Mateczun began his career of service as an enlisted member of the U.S. Army and trained at the Explosive Ordnance Disposal School at Indian Head, Maryland. He served two tours of duty in Vietnam and later received a Doctor of Medicine degree from the University of New Mexico. He completed training in psychiatry at the Naval Regional Medical Center, Oakland, California and also received a Master's of Public Health degree from the University of California, Berkeley. Admiral Mateczun was assigned as Division Psychiatrist and Assistant Division Surgeon, 3d Marine Division, Okinawa, Japan. He was then assigned to the Naval Hospital, Bethesda, Maryland as a staff physician, where he became the Intern Advisor and Transitional Intern Program Director. He also has completed requirements for a law degree at Georgetown University Law Center. He became Chairman of Psychiatry at Naval Hospital Portsmouth and then at the National Naval Medical Center where he became the Acting Director of Medical Services during Operation Desert Shield. During Operation Desert Storm he was assigned to I Marine Expeditionary Force in Saudi Arabia as a consultant on the establishment and operation of Combat Stress Centers. He was a medical crew member on the first flight that retrieved repatriating Prisoners of War in Amman, Jordan. Returning to Bethesda, he was appointed Director of Medical Services and then was assigned as the Force Surgeon for Marine Forces Pacific. He was the first Chief of Staff at TRICARE Region 1 and then appointed Principal Director for Clinical Services under the Assistant Secretary of Defense for Health Affairs. Subsequent to that tour he commanded the Naval Hospital, Charleston, South Carolina. Selected for promotion to flag rank he headed Navy medical operations and was then selected to be the Joint Staff Surgeon and Medical Advisor to the Chairman of the Joint Chiefs of Staff. He was the United States delegate to the NATO Committee of Chiefs of Medical Services. He was present in the Pentagon on 9/11/01 and subsequently served on the Joint Staff during Operations Noble Eagle, Enduring Freedom, and Iraqi Freedom. Admiral Mateczun was subsequently the Chief of Staff and Program Executive Officer at the Bureau of Medicine and Surgery. Admiral Mateczun was selected for promotion to Rear Admiral and assumed command of the Naval Medical Center, San Diego, the military's largest Medical Center employing 6,200 military, civilians, and contractors with an operating budget of $380 million. Under his leadership, Naval Medical Center, San Diego deployed over 1,000 personnel in support of Operations Iraqi Freedom, Enduring Freedom, and Unified Assistance. Admiral Mateczun is board certified in adult psychiatry and forensic psychiatry. His awards include the Navy Distinguished Service Medal, Defense Superior Service Medal with Oak Leaf Cluster, Legion of Merit with two Gold Stars, Bronze Star, Defense Meritorious Service Medal, Meritorious Service Medal with Gold Star, Navy/Marine Corps Commendation Medal, Army Commendation Medal, and Navy/Marine Corps Achievement Medal.