Children's Hospital Colorado

Digestive Health Institute

Doctor high-fiving her patient. Best Children's Hospital by US News Card Gastroenterology 2020-1 Badge

Experts in pediatric gastroenterology (GI), hepatology and nutrition

The Digestive Health Institute at Children's Hospital Colorado provides high quality, comprehensive care from board-certified experts in esophageal, intestinal, liver, pancreatic and nutritional disorders of children. Our specialists are nationally recognized for their expertise and innovation and are skilled in the most up-to-date and innovative diagnostic and therapeutic approaches for kids. Whether your child is facing a common digestive complaint or a more serious condition, we have the experience and expertise to treat them.

Digestive Health Institute physicians provide consultation to community physicians for many common GI problems of childhood, such as recurrent abdominal pain, chronic diarrhea, vomiting and constipation, and for complex and rare disorders. We work closely with primary care providers to provide a timely evaluation and diagnosis and initiate the appropriate treatment plan.

We are dedicated to providing family-centered care, which means we involve you and your child in all decision making. We are actively involved in a variety of state-of-the-art clinical and translational research studies to advance the health and care of children with GI and liver diseases and find cures for future generations.


Keeping you safe, wherever you are

We're here when you need us with the same safe, high-quality care we've always offered, even during the pandemic. Now, in many cases, you can get that care without even leaving home because we offer virtual visits across every one of our specialties.

See if telehealth is right for your child


Get to know our pediatric experts.

Mary Shull, MD

Mary Shull, MD

Pediatric Gastroenterology, Pediatrics

Sara Fidanza, CPNP-PC

Sara Fidanza, CPNP-PC


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Stephanie Petersburg, PA

Stephanie Petersburg, PA

Physician Assisting

Michael Narkewicz, MD

Michael Narkewicz, MD

Pediatric Gastroenterology, Pediatric Transplant Hepatology

Children's Colorado in the news

U.S. News & World Report

General Gastroenterology Program ranked no. 1 in the nation

junio 18, 2020

U.S. News & World Report recognized our success in treating digestive disorders, including liver transplant survival, use of non-invasive procedures, patient volume and prevention of ICU infections. These elements led to our top national ranking.

U.S. News & World Report

Stella is a medical marvel, thanks to gastric bypass surgery in her teens

octubre 17, 2019

Leading bariatric surgeon Thomas Inge, MD, worked closely with a 17-year-old who struggled with three benign brain tumors and hypothalamic obesity. See how gastric bypass surgery changed (and saved) her life.

Support Group Helps Children Living With Celiac Disease

marzo 12, 2019

A teen in Arvada is using her health experience to help others. Emma Graziano has had celiac disease since she was 8-years-old. Emma is now 17 and has created a support group geared toward young people. Graziano came up with the idea and made it happen with the support of a doctor at Children's Colorado.