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Colorado Gastroenterology: Denver
Colorado Gastroenterology: Denver
Monday – Friday
8:30AM – 5:00PM
Request An Appointment
Request An Appointment
If you are experiencing a medical emergency, please call 9-1-1. This form is intended for non-urgent appointment requests only. Our office will handle non-emergency requests within 48 hours.
Our Providers
Jennifer W. Brenner, M.D.
Gastroenterologist
in Denver, CO
Kevin M. Rufner, M.D.
Gastroenterologist
in Denver, CO
Kevin S. Sieja, M.D.
Gastroenterologist
in Denver, CO
Thomas E. Trouillot, M.D.
Gastroenterologist
in Denver, CO
Reviews
Dr. Brenner is absolutely one of the Best Gastroenterologist. She is compassionate, kind and is a great listener. Dr. Brenner treats the patient with value and is genuinely concerned about helping to improve my health.
I cannot stress this enough- Dr. Rufner is the best doctor that I have ever had in my life. I came to him incredibly ill from a flare-up. I was currently going to Rocky Mountain Gastro, where I experienced medical neglect. I had anemia due to the flare up, had lost 15 pounds and was experiencing medical grade fatigue. He saw right away and very clearly that they were not treating my flare up correctly for my UC as a whole correctly. He put me on meds and I was feeling better within a week. I think he saved my life. Dr. Rufner is caring and empathetic- He genuinely cares about his patients. He will sit and listen to your questions- I have never felt rushed. He is the first GI doctor that has sat with me and explained what UC is- and I was diagnosed back in July 2019 and started seeing him March 2023. He not only talked achieving remission, but all around wellness within my disease. Go to him! You truly won't regret it.
professional friendly staff made me feel comfortable for operation
Extremely grateful for this practice, helped me to get back to health and once again have energy and vitality!!! Thank You!!!
Dr. Rufner helped confirm a diagnosis for me after experiencing mystery symptoms for over two years. I felt like my concerns were taken seriously at this clinic and I am very thankful and actively working on symptom management. As part of my diagnosis I had an endoscopy at their procedure center and it went very smoothly there as well.
I have been a patient of Dr Trouillot for many years. He has always been attentive and open to answering all my questions and concerns. His care has resulted in total remission of my UC. I could not be more satisfied with his his care and the service provided by his staff.
I have been going to Dr Rufner since 2014 when my pancreas blew up. Dr Rufner has been my rock ever since and helped me walk through a very rough road of multiple ERCPs (over 12), stones and major surgery. I feel like I owe my health and life to him. He is extremely knowledgeable, kind, calming and you cannot do better than Dr Rufner!
i felt that when I was there 2 yrs, ago I felt that Dr. S. was more patient and listened more.{perhaps he did not like the fact that I turned down the coloscopy.)
I question why I have to have invasive procedures when less alternatives have not been explored.
They own the center. Caching, caching.... $$$$$$$$$$$$$$$$$$
I question why I have to have invasive procedures when less alternatives have not been explored.
They own the center. Caching, caching.... $$$$$$$$$$$$$$$$$$
The nurse was SO funny and friendly, all of the people working in the office were sweet and helpful, and the doctor was so informative. I felt listened to and felt like I really understood the full extent of the processes I was going to go through.
I've seen Dr. Kevin Rufner for a few visits over the last year while we get my treatment plan changed up, and I'm extremely satisfied with his care. I've had IBD for 40 years, and lived in different places, so I've seen many GI Docs over that time. You won't go wrong with him as your GI Doc.
I have been a patient of Dr. Kevin Rufner with Colorado Gastroenterology for many years, and it has always been a positive experience. Dr. Rufner is a kind and caring human being who really listens to his patients. He never makes me feel rushed or hurried, gives me up-to-date information about my health complaints, and always comes up with a complete plan of care for every issue. Additionally, his staff are friendly and supportive. I cannot recommend Dr. Rufner enough. He is an excellent doctor with an excellent staff.
This is the best doctor experience I have ever had. Dr. Rufner is so kind and takes the time to explain everything so well. The office staff were incredible- kind and helpful!
Dr. Rufner surprised me with his attentiveness and listening skills. He took his time making me feel extremely comfortable and confident in my care plan. He told me his goal is to make me feel empowered.
Make sure you bring a mask (unless you're reading this from a post-pandemic world in which case, don't rub it in), I forgot mine and almost had to miss my appointment because of it. Luckily there are nice dentists next door with masks to spare.
Dr Rufner does his best to understand his clients needs and make a plan with their goals in mind. He looks to help to recommend for wellness considerations, not just diagnose the IBD and check in once a year. I have been very satisfied with the care that he has provided for my condition over the past 3+ years. My only wish was that the office staff was a little easier to reach by phone. I have sometimes had to call 2-3 times to get through to a person because they are a really busy office.
Dr. Sieja listed to what I had to say. Scheduled appointments for
me the very next day, in order to get to the root of my problem. I am thankful for having him as my doctor.
me the very next day, in order to get to the root of my problem. I am thankful for having him as my doctor.
Excellent and informative tele-health appointment on July 15 with Dr. Rufner, who is always personable and who gets to the nub of the matter and explains clearly whatever action is next required. Inspires confidence. A+
I have been a patient of Dr. Sieja for many years. He has helped me through a lot in the past few years. He is caring and very easy to talk to.
HE LISTENS!!!
HE LISTENS!!!
Dr Ruffner is a very informed and progressive physician who relies on his education, experience and collaboration with others to be effective for his patients. He has been the only physician who didn’t quickly dismiss my digestive issues as IBS and truly explored deeper which paid off. He listens and takes his time to respond and explain. You will never feel rushed. In the past I’ve had issues with inept administrative and assistant staff but so glad to have NeeNee as the face of this practice. She’s personable and pleasant to work with.
I felt that Dr. Rufner was very engaged and interested in helping me get closer to resolving my gastro issues. The initial consultation went well and I think that Dr. Rufner and his team will provide me the best possible care with any future issues I may encounter.