• Welcome Dr. Nathan Schomaker!


    Welcome Dr. Nathan Schomaker to SDG! Dr. Schomaker is now seeing patients at our Lone Tree and Parker Clinic!

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  • 2 Castle Rock Announcement


    We Are Open! Exceptional GI Care Has Arrived in Castle Rock!

    Located at 3911 Ambrosia Street with easy access to I-25, our new Castle Rock clinic and endoscopy center is now open. 

  • Chronic Hep Cure Rates


    Cure rates for Chronic Hepatitis C
    are now 96%!

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  • Colonoscopies Save Lives


    A Screening Colonoscopy is the #1 way to prevent colon cancer. Learn more about the benefits of colonoscopy.

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  • South Denver GI Nursing Team


    Our Nursing Team is on call M-F, 8am-4:30pm. Our IBD Nurse Team can help with any needs you may have with Crohn’s & Colitis.

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South Denver Gastroenterology - Colorado's Leader in Gastrointestinal Excellence for over 40 Years 

SDG delivers comprehensive, exceptional care providing patients with optimal outcomes for gastrointestinal, pancreatic and liver diseases including colon cancer, Crohn’s disease, ulcerative colitis, gastroesophageal reflux, Hepatitis C and cirrhosis. With clinic locations in Englewood, Lone Tree, Castle Rock and Parker, along with endoscopy centers in Englewood, Lone Tree and Castle Rock, we are committed to improving the health and well-being of our patients.

Our Mission

To provide compassionate care, improving health and wellness for our patients. To promote a supportive, challenging and fulfilling work environment for staff and physicians. To serve our communities through collaboration with other providers and organizations to deliver accessible and highest-quality gastrointestinal care.