Patient Reviews

Patient feedback

Throughout our years of service to the Denver, CO community, we've provided a wide array of GI services. The caring and compassionate environment that we've cultivated in our office is one of the many reasons why our patients have trust and confidence in the care we provide. To learn more about our quality of care, browse through our reviews below. You will see for yourself the care you can expect from our GI specialists at Colorado Gastroenterology.

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    CG Denver - N Ogden St (4)

    5.0 Review from M.C. Source: Google Jan 25 2023

    "It was a great & wonderful experience, my appointment with doctor Kevin Sieja, M,D was totally awesome, I'm looking forward to my next appointment at ease. and the staff just wonderful."

    5.0 Review from S.K. Source: Google Sep 25 2022

    "I’ve been seeing Dr. Sieja for a decade now and he and his staff are always professional and attentive to my needs. I highly recommend him and Colorado GI!"

    5.0 Review from C.F. Source: Google Aug 25 2022

    "Have been going to her for a number of years. Always satisfied with my visits. Informative and answers all questions."

    5.0 Review from H.H. Source: Google May 25 2022

    "Dr Brenner was thorough, and detailed. Very good bedside manner and follow thru!!"

    5.0 Review from M.B. Source: Google May 25 2021

    "Dr. Sieja was very detailed and thorough in discussing the issues that I had recently experienced. He was able to clearly articulate certain things that I needed to change that included both lifestyle and dietary changes. I would strongly recommend Dr. Sieja for anyone that needs to consult with a Gastroenterologist."

    5.0 Review from B.Y. Source: Google May 25 2021

    "The staff and Dr. were very pleasant and professional."

    5.0 Review from T.F. Source: Google May 25 2021

    "Dr. Rufner was very knowledgeable and answered all my questions I had before I could even ask them. The prompt response and fast scheduling from them made my experience here way better than the last Gastroenterologist I was at."

    5.0 Review from M.C. Source: Google May 25 2021

    "It was nice to be taken seriously and have my experiences thoughtfully considered when Dr Brenner was making a plan for my gut health"

    5.0 Review from J.M. Source: Google May 25 2021

    "Very friendly and helpful very pleased with the service thank you👍"

    5.0 Review from E.A. Source: Google May 25 2021

    "The wait time was very short. Dr. Rufner was very attentive and I appreciated that he took the time to review my medical records prior to my first visit with him. He was honest, kind and humorous. I liked that he explained multiple different treatment options for me to choose from. I’m very impressed and happy with the care I received."