Who we are

WHO WE ARE

At Gastroenterology of the Rockies, your digestive health matters to us. Our doctors and advanced practice providers listen to each patient. We ask questions too. Our GI doctors lead with compassion and let the patient have an active say in the care they receive.
This is our way of taking a patient-centered care approach—and it’s the reason we’re able to deliver high-quality care. Each patient we treat shares a different story—different lifestyle choices—and different needs. Serving this community for over 30 years, our group of expert gastroenterologists is here to give you the attention you deserve.
With seven convenient clinic locations, you can find our gastroenterologists in Denver, Boulder, Broomfield, Adams, and Jefferson Counties.

Our Providers

For over 30 years, our practice has focused on diagnosing, treating & preventing diseases of the digestive tract. Our doctors have extensive experience managing the care of patients with digestive disorders and we 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 according to the American Cancer Society.

Our physicians are board-certified Gastroenterologists and 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, they are equipped to provide excellent care in digestive health.

Providers By Subspecialty

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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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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David Gatof

David Gatof

MD
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Joshua Steinberg

Joshua Steinberg

MD
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Pathology

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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Our Providers

For over 27 years, our practice has focused on diagnosing, treating & preventing diseases of the digestive tract. Our doctors have extensive experience managing the care of patients with digestive disorders and we 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 according to the American Cancer Society.

Our physicians are board-certified Gastroenterologists and 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, they are equipped to provide excellent care in digestive health.

Providers By Subspecialty

Advanced Endoscopic Procedures & EUS

Joseph E. Cassara

Joseph E. Cassara

MD, MBA
View Bio

Rohan Clarke

Rohan Clarke

MD, FACG
View Bio

Taimur Khan

Taimur Khan

MD
View Bio

Ramu P Raju

Ramu P. Raju

MD
View Bio

Expertise in Complex Liver Disease

David Cristin

David Cristin

MD
View Bio

Raul Cubillas

Raul Cubillas

MD
View Bio

Nathan J. Susnow

Nathan J. Susnow

MD
View Bio

IBD Inflammatory Bowel Disease (Crohn's & Colitis)

David Gatof

David Gatof

MD
View Bio

Joshua Steinberg

Joshua Steinberg

MD
View Bio

Pathology

Pathology

Retired Physicians

Dennis J. Ahnen

Dennis J. Ahnen

MD
View Bio

Korina R. Bersentes

Korina R. Bersentes

MD, FACP
View Bio

Robert P. Dolan

Robert P. Dolan

MD
View Bio

Peter S. Kaye

Peter S. Kaye

MD, FACG
View Bio

Joel Montbriand

Joel Montbriand

MD, Founder
View Bio

Richard Moseley

Richard Moseley

MD
View Bio

Emily K. Ward

Emily K. Ward

MD
View Bio

OUR MISSIONS

OUR MISSIONS

To Advance Digestive Health and the Quality of Life for All Our Patients.

Our Values

Patient Centered Carte

Patient Centered Care

We will put the patient first in all that we do.

Integrity

Integrity

Choosing courage over comfort; choosing what’s

Compassion

Compassion

Connecting with our patients and colleagues, putting empathy into action.

Innovation

Innovation

To empower our collective energies and ideas; to constantly seek better.

Teamwork

Teamwork

‘We’ not ‘Me’.
To always keep the eye on the big picture and
contribute to everyone’s collective success.

Delivering Exceptional Care of the Highest Standard to Each Patient

At Gastroenterology of the Rockies, we listen to each patient. We ask questions too. This is part of our patient-centered care approach—and it’s the reason we’re able to deliver high-quality care. With seven convenient clinic locations, find our gastroenterologists in Denver, Boulder, Broomfield, Adams, and Jefferson Counties.

Direct Access for Screening or Preventative Care

Direct Access for Screening or Preventative Care

Patient Engagement

Patient Engagement

Advanced Technology

Advanced Technology

Affordability

Affordability

Dynamic Range of Care

Dynamic Range of Care

Outstanding Reputation from Physicians & Providers

Outstanding Reputation from Physicians & Providers

Communication

Communication

Friendly staff / environment

Friendly staff / environment

Our highly trained and experienced Gastroenterologists and medical staff believe that patient care should always embrace personal kindness, respect, attention and understanding. We do this by:

  • Listening to your needs and concerns.
  • Communicating your diagnosis and treatment plan in an understandable manner.
  • Following up and communicating with you to determine how treatment is progressing.
  • Providing you and your primary care physician knowledge in a timely fashion, from first contact through follow-up.
  • Each physician in our practice has assigned clinical staff who will assist in your treatment and keep in touch if any follow-up is needed. We are dedicated to providing patient care in comfortable, convenient facilities with one of our physician’s on-call 24/7.

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