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 H.C. Source: Google Dec 25 2022

"I have gone to Dr. Brenner for years and she is great. I would recomend her to a friend."

5.0 Review from D.M. Source: Google Oct 25 2022

"After meeting with Dr. Sieja I left feeling like all my concerns and questions were heard and addressed. He is a great listener and really helped me understand the next steps for getting care. These days, it’s hard to find a Dr. with such high standards. The time he took with me was noticed and appreciated."

5.0 Review from L.A. Source: Google Sep 25 2022

"Dr. Rufner listens and hears what the patient has to say. Then doctor and patient can come up with a solution. I've been seeing Dr. Rufner for several years and wouldn't consider seeing anyone else. He helped me through my recovery after colon cancer. I highly recommended Dr. Rufner."

5.0 Review from R.K. Source: Google May 25 2022

"Everyone in the office was super friendly, efficient, and professional. As good of a doctor’s office visit as I have ever experienced."

5.0 Review from C.E. Source: Google May 25 2022

"I felt reassured after the visit and had all of my questions answered."

5.0 Review from S.S. Source: Google May 25 2021

"A friendly group."

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

"My experience with Dr. Rufner was incredible. He listened to my concerns and was very informative and polite. Will definitely be back here if I have any additional gastro issues!"

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

"He was Proffesional, thorough, efficient."

5.0 Review from L.H. Source: Google May 25 2020

"Dr Rufner is extremely knowledgeable and makes you feel very comfortable during your visit."

5.0 Review from K. Source: Google May 25 2018

"I have spent plenty of time in doctor's offices and hospitals and unfortunately am only 30. I have genetics that make me very prone to colon cancer, so I met with Dr. Frank and had a colonoscopy done as a result. They found a polyp, removed it and I have a plan moving forward. Overall, with Dr. Frank and everyone in the office, they were extremely pleasant all the way over to the Denver Endoscopy Center. I have had terrible experiences and this was the complete opposite. I had also called another local gastro group and received a different experience. Regarding the poor review below about insurance and costs. I can't remember her name, but a representative of the office reached out to me about my insurance, clearly explained costs, potential for payment options, etc. Since I am young, my insurance didn't off the bat consider this preventative. I had genetic testing done and she was able to detail what I needed to do with the insurance company to get it to be preventative. She even allowed me to merge a call with her and my insurance provider. Couldn't have been happier. Thank you."