We will be closed for the following dates to celebrate the holidays 11/27/25, 11/28/25, 12/25/25, 12/26/25, 1/1/26, 1/2/26.

Denver

Effective December 24th, 2025, our Denver clinic is relocating to a shared office space with Denver Digestive Health Specialists, 4500 East 9th Avenue, Suite 720s, Denver, CO 80220. For any questions or concerns regarding this relocation, please call the office at 303-861-0808We will continue to see patients at our Aurora clinic – there is no need to reschedule existing appointments at that location.

Denver

Monday – Thursday
8:30AM – 5:00PM

Friday
8:00AM – 4:00PM

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If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.

Denver
1960 North Ogden Street, Suite 220, Denver, CO 80218
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Our Providers

Jennifer W. Brenner, M.D.

Gastroenterologist
in Denver, 
CO
Meet Dr. Brenner

Kevin M. Rufner, M.D.

Gastroenterologist
in Denver, 
CO
Meet Dr. Rufner

Kevin S. Sieja, M.D.

Gastroenterologist
in Denver, 
CO
Meet Dr. Sieja

Thomas E. Trouillot, M.D.

Gastroenterologist
in Denver, 
CO
Meet Dr. Trouillot

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