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Western Colorado's Leading Gastroenterology Group
Grand Junction Gastroenterology is a dedicated team of board-certified gastroenterologists and physician assistants specializing in the diagnosis and management of digestive and liver-related conditions. Our practice focuses on providing comprehensive care for both symptomatic and asymptomatic adults, offering advanced diagnostic testing, personalized treatment plans, and preventive care. We utilize cutting-edge techniques to address conditions affecting the esophagus, stomach, liver, gallbladder, pancreas, small bowel, and colon. Our physicians bring extensive expertise in gastrointestinal health, ensuring patients receive evidence-based care tailored to their specific needs. We prioritize long-term patient follow-up and direct access to physicians, fostering continuity and trust in our patient-centered approach.

With decades of combined experience, our team is committed to delivering innovative solutions for complex gastrointestinal disorders. Our services are available at multiple locations, including Community Hospital, Grand Junction Endoscopy Center, and St. Mary's Hospital. We maintain strict adherence to clinical excellence and patient satisfaction, supported by detailed preparation instructions and accessible billing information. Our practice operates Monday through Friday, offering both outpatient and inpatient care while maintaining transparency in financial policies and health resources.
Services
Colonoscopy Endoscopy Liver Clinic Capsule Endoscopy ERCP Procedures
Highlights and features
  • Board-certified gastroenterologists with specialized expertise
  • Personalized care plans tailored to individual patient needs
  • Advanced diagnostic and therapeutic endoscopic procedures
  • Direct physician access for urgent patient concerns
  • Comprehensive long-term follow-up and preventive care programs
Services
Colonoscopy
Colonoscopy services detect and prevent colorectal cancer through comprehensive intestinal tract examination. Our physicians use advanced imaging technology to identify polyps, tumors, and inflammatory conditions. Patients receive detailed preparation instructions and post-procedure care guidance.
Endoscopy
Diagnostic and therapeutic endoscopy procedures examine upper gastrointestinal tract disorders. We treat conditions affecting the esophagus, stomach, and duodenum using minimally invasive techniques. Our team provides specialized Bravo pH testing for acid reflux management.
Liver Clinic
Specialized liver disease management addresses hepatitis, cirrhosis, and fatty liver conditions. Our hepatologists offer comprehensive evaluations and personalized treatment plans. The clinic provides ongoing monitoring for chronic liver disease patients.
Capsule Endoscopy
Non-invasive capsule endoscopy uses wireless camera technology to visualize the small intestine. This procedure diagnoses obscure gastrointestinal bleeding and small bowel disorders. Patients swallow a vitamin-sized capsule that transmits images during natural digestion.
ERCP Procedures
Endoscopic retrograde cholangiopancreatography (ERCP) diagnoses and treats pancreatic and bile duct disorders. Our specialists perform therapeutic interventions for gallstones, strictures, and tumors. The procedure combines endoscopy with real-time X-ray imaging.
People
Brent Prosser
Physician
Board-certified gastroenterologist with expertise in advanced endoscopic procedures and digestive disease management.
William Shields
Physician
Gastroenterologist specializing in liver disease and therapeutic endoscopy with multiple board certifications.
George Winters
Physician
Experienced gastroenterologist focusing on complex GI disorders and preventive cancer screenings.
Philip Sarges
Physician
Specialist in digestive health with emphasis on patient-centered care and long-term disease management.
Ellen Dy
Physician
Gastroenterologist providing comprehensive care for esophageal and motility disorders.
Questions
What GI procedures do you offer?
We provide colonoscopy, endoscopy, ERCP, capsule endoscopy, and liver disease management at multiple locations.
How do I schedule a procedure?
Call our office at 970.242.6600 for clinic appointments or 970.683.4808 for procedure scheduling.
What preparation is required?
Download specific prep instructions from our website or contact us for personalized preparation guidance.
Do you accept insurance?
We work with most major insurance providers. Contact our billing office at 970.257.6928 for verification.
Are your physicians board-certified?
Yes, all our gastroenterologists are board-certified with additional fellowships in digestive diseases.
What if I need urgent care?
Contact our office during business hours for urgent GI concerns. Emergency services are available after hours through affiliated hospitals.
Reviews (4)
Kellie Vikdal
Jun 15, 2022 Report
Staff was great. I felt comfortable and well taken care of. Dr. Sarges took the time to address my concerns, and consider different options for treatment/maintenance of my condition. Glad to have him for my doctor!
Bonnie Bange
Jun 14, 2022 Report
Excellent care by doctors and nurses. My appointment was 4pm on a Thursday so I was concerned about how energetic the hard-working staff would be at the time of day at the end of the week. I was very impressed with the all of the staff - except the grouchy receptionist - the rest of the group were high energy, patient, detailed, friendly, and professional. Delightful group.
Jesse Ciccone
Jun 14, 2022 Report
I was super nervous going in for this, but these people were awesome and very professional. Made everything much easier than I expected it to be. The doctor was great and everyone on staff I dealt with was helpful and very nice.
Grand Mountain
May 06, 2022 Report
Dr Sarges is gentle and caring. I didn't even need anesthesia for my colonoscopy. He communicates well and made me so comfortable I felt no fear at all during the entire procedure. It's really nice when you find yourself in expert hands. Thank you Dr. Sarges for being the kind of doctor we used to have. Now, after the pandemic, it's rare to find smart professional caregivers who actually spend the time necessary.to inform AND set the patient at ease. Dr. Sarges puts YOU first-not his business.