Dr. Prosser originally hails from Cheyenne, Wyoming. After receiving his degree in biology from Creighton University in Omaha, NE, he completed medical school at the University of Colorado. It was also in Denver that he had the fortune of meeting his wife, Dana. He then completed his Internal Medicine residency in Charlotte, NC at the Carolinas Medical Center before moving on to Baltimore, MD to finish his training with a Gastroenterology Fellowship through the Johns Hopkins Hospital. He and Dana then moved directly to Grand Junction in 2007 where they have been proud to raise two sons and call the Grand Valley home
Dr Shields is a native of Colorado. He attended Western State Colorado University with a degree in biology followed by medical school at Kansas City University of Medicine and Biosciences. He completed Internal Medicine Residency and Gastroenterology Fellowship at the Naval Medical Center in San Diego, CA and Hepatology training at the Scripps Clinic in La Jolla, CA. He stayed on faculty at the Naval Medical Center and was an Assistant Professor of Medicine at the Uniformed Services University of Health Sciences for five years before joining Grand Junction Gastroenterology in 2014. He is board certified in Gastroenterology. He is a Fellow of the American College of Physicians and American College of Gastroenterology.
George R. Winters III
Dr. Winters graduated from Cornell University and the University of Vermont, College of Medicine. He completed his Internal Medicine residency at Fitzsimons Army Medical Center in Aurora, Colorado and completed his Gastroenterology Fellowship at Walter Reed Army Medical Center in Washington, DC. He spent five years overseas as the Chief of Gastroenterology at Landstuhl Regional Medical Center in Germany and practiced nine years in Seattle, Washington prior to moving to Grand Junction in July, 2015. He is board certified in Gastroenterology. He is a member of the American Society of Gastrointestinal Endoscopy. He is a Fellow of the American College of Physicians and the American College of Gastroenterology
Dr. Sarges has a passion for caring for people with gastrointestinal system disorders. He’s experienced in capsule endoscopy, fecal transplant, inflammatory bowel disease, and colon cancer screening. He earned his medical degree from Tufts University School of Medicine in Boston, Mass. He continued on to complete his residency and fellowship at Georgetown University Hospital. Dr. Sarges served as both a chief fellow and a chief resident at Georgetown Hospital. Prior to relocating to Grand Junction in the summer of 2019 he worked at a medical practice on the Front Range of Colorado. Dr. Sarges is board certified in gastroenterology and internal medicine.
Dr. Dy graduated from Indiana University School of Medicine and completed her Internal Medicine Residency at the Indiana University Medical Center. She completed her Gastroenterology Fellowship at the University of Texas Medical Branch in Galveston, Texas where she was Chief Fellow. She did an Advanced Therapeutic Endoscopy Fellowship at Allegheny General Hospital in Pittsburgh, PA. She practiced 21 years in Des Moines, Iowa before moving to Glenwood Springs, Colorado where she worked prior to joining Grand Junction Gastroenterology in 2022. She is Board Certified in Gastroenterology and is a member of the American College of Gastroenterology, the American Society of Gastrointestinal Endoscopy and the American Gastroenterological Association.
Hannah is a native of Grand Junction, Colorado. She is excited to be back in the Grand Valley with her family. Hannah received her Bachelor of Science in biology from the University of Denver. Following this, she attended the University of Nebraska Medical Center in Omaha, NE where she received her Masters of Physician Assistant Studies. Hannah has been practicing as a Gastroenterology Physician Assistant for the last five years. Hannah is a Nationally Certified Physician Assistant and is a licensed physician assistant with the Colorado Medical Board.
Katie is a Colorado native and is happy to be practicing in western Colorado. She has extensive experience working as a physician assistant in the field of gastroenterology and hepatology. Katie received her Bachelor of Science in Biology and her Masters in Physician Assistant Studies from Rocky Mountain College in Billings, Montana. She is a Nationally Certified Physician Assistant and is a member of the American Academy of Physician Assistants and the Colorado Academy of Physician Assistants.
Leah has lived in Grand Junction for two years and has been practicing as a physician assistant for more than 5 years. Leah received her Bachelor of Science in nutrition science from University of Nebraska-Lincoln and her Masters in Physician Assistant Studies from Nebraska Medical Center in Omaha. She is a Nationally Certified Physician Assistant and is a licensed physician assistant with the Colorado Medical Board. Leah is a native of Nebraska, but is no stranger to Colorado. She grew up in western Nebraska, about 10 miles from the Colorado border. Grand Junction feels like home to her.
What Sets Us Apart
Team Of Board-Certified Specialists
Providing Personalized & Innovative Gastroenterological Care
Utilizing The Latest & Most Advanced Techniques
Offering Long-Term Patient Follow-Up & Direct Physician Access