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Our Providers

For over 30 years, our GI practice has focused on diagnosing, treating & preventing diseases of the digestive tract. All of our doctors are board-certified gastroenterologists with extensive experience managing the care of patients with digestive disorders.

This group of highly trained GI specialists in Denver and Boulder have treated and removed over 300,000 polyps over the lifetime of our practice! Our providers perform over 1,400 procedures each year with 72% being cancer screening colonoscopies. Colonoscopies are proven to be the best method for preventing colorectal cancer (CRC) according to the American Cancer Society.

Among our board-certified gastroenterologists in Denver, and other locations along the Front Range, these physicians are members of some of the most prestigious organizations in their field, including the American College of Gastroenterology and the American Society for Gastrointestinal Endoscopy. With their educational background, advanced training and medical skills, our highly trained team of doctors at Gastroenterology of the Rockies is equipped to provide excellent care when treating patients with digestive disorders.

Providers By Subspecialty

Gastroenterologists

Simranjit (Sim) Bedi

Simranjit (Sim) Bedi

DO
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Joseph E. Cassara

Joseph E. Cassara

MD, MBA
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Rohan Clarke

Rohan Clarke

MD, FACG
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David Cristin

David Cristin

MD
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Raul Cubillas

Raul Cubillas

MD
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Timothy Dobin

Timothy Dobin

DO
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David Gatof

David Gatof

MD
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Matthew W. Karowe

Matthew W. Karowe

MD
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Taimur Khan

Taimur Khan

MD
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Daus Mahnke

Daus Mahnke

MD
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Tamas Otrok

Tamas Otrok

MD
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Wesley Prichard

Wesley Prichard

DO
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Ramu P Raju

Ramu P. Raju

MD
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Matthew_Seto

Matthew Seto

DO
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Joshua Steinberg

Joshua Steinberg

MD, Director of IBD
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Nathan J. Susnow

Nathan J. Susnow

MD
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Kelly Zucker

Kelly Zucker

DO
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Advanced Practice Providers

Victoria Evelyn

VICTORIA EVELYN

PA-C
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Susan Gieske

Susan Gieske

PA-C
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Gerald Kidd

Gerald Kidd

PA-C
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Kevin Lee

Kevin Lee

PA-C
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Emily Marshall

Emily Marshall

PA-C
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Jennifer Meyer

Jennifer Meyer

PA-C
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Rachel Pierce

Rachel Pierce

PA-C
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Rachel Povilus

Rachel Povilus

PA-C, MPAS, MPH
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Brittany Propoggio

Brittany Propoggio

PA-C
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Morgan Reilly

Morgan Reilly

PA-C
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Katie Vieira

Katie Vieira

PA-C
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Sarah Schwartz

Sarah Schwartz

PA-C
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Advanced Endoscopic Procedures & EUS

Joseph E. Cassara

Joseph E. Cassara

MD, MBA
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Rohan Clarke

Rohan Clarke

MD, FACG
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Taimur Khan

Taimur Khan

MD
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Ramu P Raju

Ramu P. Raju

MD
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Additional Expertise In Complex Liver Disease

David Cristin

David Cristin

MD
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Raul Cubillas

Raul Cubillas

MD
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Nathan J. Susnow

Nathan J. Susnow

MD
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IBD: Inflammatory Bowel Disease (Crohn’s & Colitis)

David Gatof

David Gatof

MD
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Joshua Steinberg

Joshua Steinberg

MD
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Retired Physicians

Dennis J. Ahnen

Dennis J. Ahnen

MD
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Korina R. Bersentes

Korina R. Bersentes

MD, FACP
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Robert P. Dolan

Robert P. Dolan

MD
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Peter S. Kaye

Peter S. Kaye

MD, FACG
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Joel Montbriand

Joel Montbriand

MD, Founder
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Richard Moseley

Richard Moseley

MD
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Emily K. Ward

Emily K. Ward

MD
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Steven Chetham

Steven Chetham

MD, FACP
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