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CAPT Gregg Photo



CAPT Gregg, a native of Cable, Ohio, attended Wright State University, Dayton, Ohio where he graduated with his Bachelor of Science in Biology in 1998 and completed his Medical Doctorate in June 2003. He additionally has a Master of Public Health degree from the Uniformed Services University of the Health Sciences, and an Executive Master of Business Administration degree from the Naval Postgraduate School.

Following the completion of an Internal Medicine Internship at the National Naval Medical Center in Bethesda, Maryland in 2004, Gregg was selected to attend the Naval Undersea Medical Institute (NUMI) in Groton, Connecticut. After graduating from NUMI in 2005, he reported to Naval Submarine Support Center, New London, Connecticut as the Squadron Undersea Medical Officer. In 2007, Gregg was hand selected and served as the Group Surgeon for Commander Submarine Group TWO in Groton, Connecticut.

From 2009 to 2011 Gregg completed his residency in Preventive Medicine at the Uniformed Services University of Health Sciences. In 2011, he reported to US Naval Hospital Okinawa, Japan as the Department Head of Preventive Medicine and Public Health Emergency Officer. In 2012, Gregg deployed in support of Pacific Partnership 2012 providing humanitarian assistance and disaster response-preparation to Indonesia and Vietnam and was later selected as and served as the Director, Public Health at U.S. Naval Hospital Okinawa, Japan until August 2014.

In September of 2014, Gregg reported to USNORTHCOM in Colorado Springs, Colorado where he served as the Chief, Preventive Medicine for the NORAD-USNORTHCOM Surgeon and helped lead USNORTHCOM CONUS Ebola and Zika virus planning and response and global synchronization efforts. From August of 2016 to August 2019, he served as the Officer in Charge for Navy and Environmental Preventive Medicine Unit TWO in Norfolk, Virginia, and was responsible for three Forward Deployed Preventive Medicine Units, as well as public health and readiness support of US military forces across multiple Geographical Combatant Command Areas of Responsibilities.

In July 2019, he was selected as U.S. Navy Preventive Medicine Specialty Leader and reported to Navy Medicine Readiness and Training Center Jacksonville where he served as the Director, Public Health leading the command’s effort for COVID-19 mitigation, testing, and vaccination. In April 2020, he deployed to Bahrain in support of United States Naval Forces Central Command/Combined Maritime Forces/U.S. Fifth Fleet to lead COVID-19 response and mitigation efforts for joint operational forces in the region. In June 2021, he reported as the Executive Officer for US Navy Medicine Readiness and Training Center Sigonella, Italy where he helped lead command and region support efforts for three Geographical Combatant Commands to include supporting 4,300 Afghan travelers as part of Operation Allies Refuge.

CAPT Gregg is a Fellow of the American College of Preventive Medicine, board certified in Public Health and General Preventive Medicine, and he is qualified as an Undersea and Diving Medical Officer and Submarine Medical Officer. CAPT Gregg’s personal decorations include the Defense Meritorious Service Medical, Meritorious Service Medal (five), Navy Commendation Medal (three), Joint Service Achievement Medal, Navy Achievement Medal, and various unit awards.

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