James Doyle

Originally from New Jersey, Dr. Doyle attended college at Rutgers University. Receiving his medical degree from Saint Louis University Medical school, he then did his internship and residency in the UCLA system. After serving three years in the United States Public Health Service, he completed his fellowship training at Saint Louis University. He then practiced gastroenterology in Spokane, Washington, for 25 years. Eventually tiring of the winter weather in the Pacific Northwest, he moved to Reno, Nevada, practicing gastroenterology for three years, where he was a Clinical Assistant Professor of Gastroenterology at the University of Nevada Medical School. Having a wife who always wanted to live in Colorado, they moved here a year ago.

Dr. Doyle genuinely enjoys interacting with patients in solving their healthcare problems. He has significant experience in endoscopic procedures and enjoys the hands-on aspect of endoscopy. His practice encompasses all aspects of general gastroenterology with a particular interest in small intestinal bacterial overgrowth and the impact of the colonic bacterial flora on human physiology.

In his spare time, he enjoys the outdoors, whether it’s hiking with his Bernese Mountain Dogs, paddle boarding, skiing, boating or surfing, to name a few activities. An avid historian of World War II, he has read thousands of books on the subject and maintains a library of books on the subject.

  • Medical School: Saint Louis University Medical School, St Louis, Missouri
  • Residency: St. Mary’s Medical Center: Harbor-UCLA, Long Beach, California
  • Fellowship: Saint Louis University, St Louis, Missouri
  1. Protective effect of calcium channel blockers on hepatic viability in response to hepatic toxins.
  2. Endoscopic retrograde sphincterotomy in the swine.