New Search Accepting new patients. Andrew B. Gentry MD (406) 414-5336 Entrance 3 Purple Zone Primary Specialties Gastroenterology (Board Certified) Secondary Specialties Internal Medicine (Board Certified) AffiliationsBozeman Health Deaconess Hospital Bozeman Health Medical Group Primary Office Address: Bozeman Health GI Clinic 931 Highland Blvd., Suite 3350 HP 3 Purple Zone Bozeman, MT 59715 Hours: Monday - Thursday8:00 am - 5:00 pm Friday8:00 am - 4:00 pm Recommend this Physician Education Medical School: Uniformed Services University of the Health Sciences F. Edward Hebert School of Medicine, MD Residency: Naval Medical Center Portsmouth, Gastroenterology Fellowship: National Naval Medical Center, Endoscopy Physician Bio Andrew Gentry, MD, is a a gastroenterologist at Bozeman Health GI Clinic. A graduate of the U.S. Naval Academy, Dr. Gentry served as an officer on the submarine USS Louisville and with the National Security Agency before he earned his medical degree at the Uniformed Services University of the Health Sciences F. Edward Hebert School of Medicine. He completed his internship and residency in gastroenterology at Naval Medical Center Portsmouth in Virginia, and a fellowship in endoscopy at the National Naval Medical Center in Maryland. Dr. Gentry returned to Portsmouth and became division head in gastroenterology before moving to Bozeman. He is board certified in internal medicine and gastroenterology.