Gastroenterologist in Denver, CO | GI Doctor ...
Gastroenterology • Denver, CO • Peak Gastroenterology Associates in Denver; Peak Gastroenterology Associates at Lone Tree (as referenced) locations
Clinic Type
Gastroenterology
Address
—
Phone
303-424-2535
—
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
—
Technology & Equipment
Insurance & Payment
—
Languages Spoken
—
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- WebMD: 4.5/5 (80 ratings) (35 reviews)
- Healthgrades: 3.0/5 (29 ratings) (29 reviews)
- WebMD: 5.0/5 (44 ratings) (39 reviews)
- Healthgrades: 5.0/5 (2 ratings) (2 reviews)
- Healthgrades: 4.8/5 (17 ratings) (17 reviews)
Patients praise
- Professional and knowledgeable care
- Strong communication skills and willingness to explain procedures
- Compassionate and patient-centric approach
- Smooth and efficient procedure processes
- Effective diagnostic and treatment outcomes
Common complaints
- Perceived arrogance or dismissive bedside manner
- Poor communication or lack of empathy
- Long wait times and scheduling/billing issues
- Negative clinical experiences (e.g., misdiagnosis or unnecessary/incomplete procedures)
"Dr Wisser is probably a skilled doctor. But her bedside manners are smug and dismissive."
— WebMD"Zero personality and terrible bedside manner. Barely greets patients and spends little time explaining things. Makes you feel as if questions are an imposition."
— Healthgrades"Dr. Rhee was kind, professional, and reassuring throughout my colonoscopy. He made the whole experience smooth and stress-free. Highly recommend!"
— WebMDSynthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].
In the News
- Sarah Safadi MD - Gastroenterology - UCHealth — Oct 8, 2025
- Gastroenterologist in Denver, CO - GI Alliance — Dec 24, 2025
- Dr. Gareth Weiner, MD - Denver, CO - Gastroenterology — Jul 24, 2025
- Gastroenterologists in Denver - HCA HealthONE — Dec 8, 2025
- Joshua Katz, P.A. - South Denver Gastroenterology, P.C. — Nov 11, 2025
Information sourced from the clinic's website as of July 10, 2026.
More gastroenterology clinics in Denver
Rocky Mountain Gastroenterology (RMG) is a private gastroenterology practice serving the Denver metro area (headquartered in Lakewood, CO) since 1997. With about 30 board-certified gastroenterologists across six offices and four outpatient endoscopy centers, RMG provides comprehensive GI care, including colonoscopy, upper endoscopy, and specialized GI procedures. They perform roughly 30,000 procedures annually and offer patient-friendly services such as nutritional counseling, a patient portal, and online scheduling. Key locations include Centennial, Littleton, Thornton, and Lakewood, with the main office at 355 Union Blvd, Lakewood. Contact: 1-303-252-4442 or 303-722-8987.
Comparing your options?
See other gastroenterology clinics in Denver, or search the full directory by insurance, ratings, and more.