If you feel ill with fever, flu-like symptoms or respiratory illness, please call us to reschedule your appointment. Please Do Not Bring Children Under age 16 to Appointments.

Informational Videos

Meet Granite Peaks Gastroenterology

At Granite Peaks Gastroenterology, our physicians and professional, caring staff address your digestive concerns with proven skill, vast experience, and total dedication to delivering top-quality care to the community they loyally serve. Regardless of your diagnosis, we meet it with comprehensive, advanced gastroenterology services delivered by our board-certified GI specialists, Dr. Andrew Heiner, Dr. Christopher Cutler, Dr. R. Kyle Barnett, Dr. Steven G. Desautels, Dr. David Schmidt, Dr. James Stewart, and GI specialty trained providers May Marschner, PA-C, Scott Moffitt, PA-C and Rachel Hansen, PA-C who are committed to medical excellence. This offers you a complete team of professionals dedicated to helping you achieve your best health.

Colonoscopy Prep


MiraLAX 2-Day Prep

Prescription Prep

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Prescription 2-Day Prep

Miralax 3-3-3


Doctor Seminar Series




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What Is a Gastro?




Colonoscopy Screening

Celiac Disease

Treating IBS

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Hemorrhoid Removal

Lynch Syndrome

Ulcerative Colitis

Crohns Disease