John P. Barrett


Colonel, Army

Department of Primary Appointment:
School of Medicine
Preventive Medicine and Biostatistics
Army Senior Service Leader
Location: Uniformed Services University of the Health Sciences, Bethesda, MD
Research Interests:
Uniformed Services Population Health
Clinical Health Services
Office Phone


Family Medicine Residency 1995-98
Family Medicine Faculty Development Fellowship 2000-02
Preventive Medicine Residency 2007-09
Occupational and Environmental Medicine Fellowship 2009-10

Doctor of Medicine, Uniformed Services University 1995
Master of Science (Health Services), University of Washington 2010
Master of Public Health (Health Education), University of Washington 2002
Bachelor of Science (Physiology), University of California, Davis 1991


Colonel John P. Barrett enlisted in the Army after high school. He then attended the University of California, Davis, and was commissioned as a Second Lieutenant through Army ROTC. He received his Doctor of Medicine from the Uniformed Services University of the Health Sciences (USU), and later attended the University of Washington receiving a Master of Public Health in Health Education and a Master of Science in Health Services.

Colonel Barrett’s previous assignments include: Medic at Silas B. Hays Army Community Hospital and the 7th Infantry Division (Light), Ft. Ord, CA; Flight Medic, 126th Medical Company (Air Ambulance), Sacramento, CA; Group Surgeon, 1st Special Forces Group (Airborne), Ft. Lewis, WA; Brigade Surgeon, 17th Aviation Brigade, Seoul, Korea; B. Company Commander and Battalion Deputy Commander for Clinical Services (DCCS), 168th Area Support Medical Battalion, Seoul, Korea; Command/Force Surgeon, Multinational Force and Observers, Sinai, Egypt; Officer-in-Charge (OIC), Okubo Health Clinic, Ft. Lewis, WA; Squadron Surgeon, 1/14 Cavalry Squadron, Operation Iraqi Freedom; Chief, Department of Preventive Medicine, Walter Reed Army Medical Center, and the Army National Capital Area Public Health Emergency Officer and Joint Task Force-Capital Medicine Transition OIC for Public Health; OIC, Civil Affairs Medical Operations, Combined Joint Task Force-Horn of Africa; DCCS and Chief of Professional Services, US Army Medical Activity-Korea and Brian Allgood Army Community Hospital, Seoul, Korea; Chief, Department of Operational Medicine and Deployment Health, and Regional Aerospace Medicine Consultant, Joint Base Lewis-McChord, WA. Colonel Barrett currently serves as the USU Army Senior Service Leader, the Deputy Director, Division of Epidemiology and Biostatistics, and Associate Professor of Preventive Medicine & Biostatistics, Military & Emergency Medicine, and Family Medicine.

Colonel Barrett is a Fellow of the American Academy of Family Physicians and the American College of Preventive Medicine, and is board certified in Family Medicine, Preventive Medicine, Occupational Medicine, and Aerospace Medicine. He has over 16 years of service as part-time and full-time Residency Teaching Faculty. Colonel Barrett’s military awards include the Army Surgeon General “A” Designation and the Order of Military Medical Merit.