Patient Reviews

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.

5.0 Review from L.L. Source: Google Jan 25 2023

"Dr. Ruffnor was the only doctor to figure out my problem, in 10 months Hes old school - he listens, hears and encourages discussion."

5.0 Review from J.C. Source: Google Oct 25 2022

"Dr. Sieja listens to my concerns and explains my health situation in a way I can easily understand. He also orders tests to know if anything is developing. He is friendly and relaxed"

5.0 Review from L.W. Source: Google May 25 2022

"Amazing Group and Dr. Brenner!"

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

"Very knowledgeable doctor. He also took his time listening to my concerns and was patience. I'm very satisfied with my visit. Thank you"

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

"Dr. Rufner has been my best gastroenterologist and I've had quite a few. I've had some say they didnt know what was wrong but Dr. Rufner knew what it was and how to treat. I have been going to him about 6 years and highly recommend him."

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

"My son is a new patient of Dr. Rufner. Thus far I can say he’s pretty awesome. He created a plan for my son, and is honest and gentle."

4.0 Review from K.C. Source: Google May 25 2021

"The staff were all very personable. All current safety guidelines were in place. Dr. Rufner listens, and discusses in detail your situation. He wants to be sure you understand, and does not rush the appointment."

4.0 Review from J.S. Source: Google May 25 2021

"Everyone, everything was done in a very comfortable fashion for me. All of the individuals that assisted through the procedure were fantastic. I was completely comfortable and at ease in throughout the entire experience."

5.0 Review from T.P. Source: Google May 25 2020

"The Staff is very professional and nice. Dr. Rufner really takes the time to listen to you and he makes several recommendations on how to get you back to feeling good again."

5.0 Review from C.W. Source: Google May 25 2020

"Dr. Rufner is just amazing! His treatment plan got me into remission, and it is always a pleasure to visit him. I’m not one of those people who are afraid of doctors/hospitals, but if I was Dr. Rufner would most certainly change my mind in that regard. He is very attentive to your concerns, and always explains his treatment decisions thoroughly. Every time I leave his office I feel confident that we have made the right decision for me and my treatment plan. Thank you Dr. Rufner!"