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.
Filter By Ranking
Filter By Source
Filter By Person
Filter By Procedure
- Acid Reflux (8)
- Colon Cancer (4)
- Colorectal Polyps (7)
- Crohn's Disease (6)
- Fatty Liver Disease (5)
- Helicobacter Pylori (2)
- Hemorrhoids (7)
- Hepatitis (3)
- Inflammatory Bowel Disease (7)
- Irritable Bowel Syndrome (4)
- Non-alcoholic Steatohepatitis (5)
- Pancreatitis (6)
- Ulcerative Colitis (6)
- GERD (5)
- Biliary Obstruction (7)
- Dysphagia (3)
- Peptic Ulcers (3)
- Esophageal Stricture (6)
- Esophagus Problems (4)
- Gallstones (5)
- Pancreatic Cancer (5)
- Liver Masses or Cysts (4)
- Pancreatic Cysts (6)
- Anal Fissure (6)
- Anemia/Iron Deficiency (5)
- Barrett's Esophagus (6)
- C. Difficile Colitis (4)
- Celiac Disease (6)
- Cyclic Vomiting Syndrome (CVS) (7)
- Diverticulitis (4)
- Diverticulosis (4)
- Fistula (3)
- Food Intolerance (5)
- Gallbladder Disease (6)
- Gastritis (4)
- Hiatal Hernia (7)
- Ileitis (3)
- Impacted Bowel (3)
- Jaundice (6)
- Esophagitis (6)
- Eosinophilic Esophagitis (3)
- Esophageal Motility Disorder (3)
- Lactose Intolerance (5)
- Liver Cirrhosis (7)
- Primary Biliary Cholangitis (3)
- Primary Sclerosing Cholangitis (5)
- Colitis (5)
- Abdominal Pain (4)
- Anal/Rectal Bleeding (3)
- Bloating (5)
- Blood in the Stool (7)
- Bowel Incontinence (4)
- Constipation (5)
- Diarrhea (6)
- Difficulty Swallowing (7)
- Unexplained Weight Gain/Loss (3)
- Yellowing of the Skin/Eyes (5)
- Nausea (3)
- Vomiting (3)
- Heartburn (7)
- Indigestion (4)
Filter By Facility
"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."
"Dr. Rufner is the BEST! He took a lot of time during my appointment to explain my G.I. issues and devised a plan for treatment and further testing. I found him to be patient, caring, knowledgeable, and thorough. I highly recommend him for any G.I. issues. He is far and above other G.I. doctors, I have seen in the past."
"Personable, Knowledgeable, Understanding, and informative."
"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."
"Dr. Ruffnor was the only doctor to figure out my problem, in 10 months Hes old school - he listens, hears and encourages discussion."
"I had a wonderful experience! He took my concerns seriously, answered any question I had with sincerity and knowledge, and helped me understand how to manage my issues without shame or guilt. He was responsive, knowledgeable, honest, and overall very attentive. I always have a ton of questions for my doctors and he never made me feel rushed or bad for asking. Definitely recommend!"
"Dr Rufner was super amazing at my first visit. Explained everything and helped figure out my plan of care. He was concerned and answered all my questions!! He’s very very experienced in the GI world. If you get the chance to have his care, you are winning!"
"Dr Rufner takes time to carefully explain about your condition. He is very knowledgeable and compassionate!! I highly recommend him!!"
"Dr. Rufner also knows some Spanish, which helped out to explain my dads situation. And I definitely referrer him to my family and friends to his office. Thank you for your great services!"
"Dr.Rufner is a very knowledgeable and caring doctor. He listens , explains ( often with drawings) his diagnosis and answers questions. He also addresses concerns. He never rushes an appointment. A few times (when I was unable to schedule an appointment ) he called me to discuss my problem. I would highly recommend Dr. Ruffner."
"Dr Rufner is a great listener and explain matters in the most helpful way."
"He is professional, knowledgeable, kind, calming! He explained everything with details for me."
"Dr. Rufner not only provided great care but I left feeling hope for the first time in years. He takes the time to listen and answer all questions and I never once felt rushed. While I’m still going through my care plan with him, just leaving with hope is enough for me to recommend him."
"Dr. Rufner is the best physician I have had in my lifetime. He will listen, and address your issues with clarity. There just aren’t enough stars."
"I don’t like going to doctors but Dr. Rufner makes my appointment a breeze. He goes over my records and discusses everything with me in detail and then come up with a game plan to go by. I would recommend Dr. Rufner to anybody his bedside manner is out of this world."
"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!"
"Fantastic doctor. Actually helps you understand things and is very nice guy. 10/10 recommend"
"Dr. Rufner was so friendly and easy to talk to. It was my first visit with him and he made me feel like I was a regular patient. He listened to all my concerns without judgment and I could tell he truly understood what I was saying! His medical assistant Cydney was also wonderful! I highly recommend Dr. Rufner!"
"Very professional explains things very well In lay terms. Great sense of humor plus"
"Dr. Rufner and team were very thoughtful and thorough. They allowed plenty of time during my consultation for questions and made me feel at ease during a stressful time."
"Very knowledgeable, and truly cares about his patients"
"I have had ulcerative colitis for about 20 years. I was diagnosed when I was in 4th grade. Over those two decades, I have had doctors who don’t take into account how I am doing. Just what my test results say. Dr. Rufner is not one of those doctors. Of course, he relies on test results, but he also values my own personal feelings a lot. He is also VERY up to date on the latest science and has some well-informed suggestions on how I can best manage my condition. I would absolutely recommend Dr. Rufner to anyone looking for help!"
"Doctor Rufner isn't just great he's amazing! Very thorough, derailed, took the time to explain things in great detail, didn't rush at all just simply amazing. You can tell he really cares and has compassion for me as a patient. I also noticed he was trying to take more of the natural approach of healing instead of expecting a medication to mask everything. I really wish all doctors now days were as organized and patient as he is. In this day in age it's very hard to find good care, I feel I have truly gotten extremely lucky"
"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."
"Dr. Kevin Rufner is very thorough, knowledgeable and excellent. I definitely recommend him. Thanks, Virginia"
"Dr. Rufner finds a way to make what could be a “difficult” to discuss medical issue feel like a friendly conversation with a really, really smart friend."
"Have been going to Dr Rufner for 10 years and have total confidence in him. He is the best at explaining everything easily to me on my complicated pancreatic issues. So glad he is my doctor!"
"Dr. Rufner was informative, friendly, and ran his office on time. What more could you ask for in a physician?"
"Very nice and professional you can tell he cares 😊"
"Both my daughter and I see Dr. Ruffner. He is one of the best doctors I've ever seen. He is very thoughtful and knowledgeable. The staff are always very helpful and pleasant."
"By the end of my first appointment he had a game plan. Which I have been trying to get for 10 years. He was kind, understanding, and seemed to really care."
"At my colonoscopy appointment today, I was greeted by a kind and caring staff. The Denver Endoscopy Center is Immaculate and well-appointed. I felt i was in the best care with Dr. Rufner and his team! Thank you!"
"He is so understanding and listens to his patients. Not only does he explain what he is recommending and how it works what to expect. I can't recommend him more he is one of the best doctors I have!"
"Dr. Rufner and his staff are always prompt, professional and pleasant. The subject matter when seeing an Gastroenterologist is not the easiest to discuss and yet Dr. Rufner has the natural ability to put the patient at ease when discussing symptoms, diagnoses and treatments. I recommend him without any reservations."
"Great experience. Reviewed results with me and answered all questions I had."
"Dr Rufner is very knowledgeable and takes the time to educate patients about any questions they have. He is attentive, friendly, approachable and caring."
"Dr Rufner is very knowledgeable and professional. He offered great insight, and was very detailed."
"One of the best doctors I’ve seen."
"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."
"Great staff and service!"
"Dr. Rufner read over my existing file before my first appointment, listened to my concerns, and formulated a plan. I appreciate his willingness to problem solve with me."
"Talking with Dr. Rufner was very reassuring. I have greater understanding about my disease, and a realistic, tolerable approach is being recommended. I feel helped and reassured and relieved!"
"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."
"Dr. Rufner was extremely easy to talk with. He used language that was easily understood. I was asked several times if I understood what he was telling me and was asked if I had questions. I look forward to meeting him in person."
"Dr. Rufner was awesome. He took his time, answered all my questions completely. I didn’t feel the slightest bit rushed. He went over all the procedures, details of what my body was doing in an easy to understand way. I really feel he cared about me. Look no further than Dr. Rufner."
"Dr Rufner is very good at explaining how the body works and the details of treatment. He is vey easy to talk to. He makes you fell at home."
"Great doctor, very thorough, takes time to explain diagnosis in detail. Excellent professional and personal manner. Only complaint is very poor telephone appointment system"
"Dr Rufner did a great job and has my GI symptoms under good control"
"Dr Rufner is a caring physician and listens intently to concerns."
"Comprehensive, compassionate, educational with a solid plan of action put in place to address health issues. I highly recommend Dr. Kevin Rufner."
"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."
"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+"
"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."
"Met with Dr. Rufner came up with a treatment plan. Dr. Rufner always takes time to listen and explains things very well."
"Great experience with dr rufner."
"I saw Dr. Kevin Rufner for the first time today, for long standing Crohn's Disease. Based on only one very extensive meeting, I was extremely impressed with Dr. Rufner and will absolutely continue seeing him. I feel very fortunate to have connected with him. I've had Crohn's for over 40 years, so I've seen my share of GI doctors."
"Great as always. Very professional atmosphere."
"Extremely knowledgeable and excellent at explaining."
"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!"
"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."
"Dr. Rufner is excellent. This was only my first appt. so I will come back and update this review after my second. I was able to really talk to him and tell him everything and he listened really well and explained in detail what I needed to be educated on and the procedures we would be doing together to find answers to get to recovery. I also can't say enough good things about NeNe his scheduler. She has a great caring personality on top of being efficient. What a find in an employee. I will again up date this later but I recommend going to him for any GI needs."
"Dr. Rufner thoroughly explained what he performed in a very understandable way. All the results were, also, communicated very well. He provided some suggestions on how to supplement my diet going forward. I would highly recommend Dr. Rufner"
"I really felt heard. Dr Rufner was truly interested in my situation. I felt like I could trust him. I’ve not had great experiences with gastroenterologists and my expectations were low, dr Rufner completely blew my expectations through the roof. What an amazingly smart man with terrific bedside manner. I’m super happy to have him in my life."
"Dr. Rufner was attentive and very informative. Took the time to explain and address any of my concerns. Front desk staff as well as the MA was very friendly."
"Both Dr. Rufner and Scott, the Front Office Manager, are best-in-class. Dr. Rufner has excellent bedside energy, and he is a very intelligent and thoughtful professional. Scott is perhaps the most proactive office employee I have ever encountered -- refreshing! I highly recommend this office!"
"I have consulted with Dr Rufner several times now and each time he is kind, thorough, and empathetic. I enjoy talking to him and would highly recommend him."
"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."
"Kevin Ruffner is an excellent Physician and I'm blessed to have Him in My corner."
"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."
"Truly caring doctor with tremendous expertise"
"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."
"So I'm not a patient of his, but my boyfriend is. So far he has been the only doctor to take his llness seriously. My boyfriend has gastroparesis and it has been a rough couple of years, but we've been lucky to have come across Dr. Rufner. The approaches he is taking have helped us find out so much in such a small amount of time, much faster than his past doctors have performed. Would recommend him over and over."
"attentive, concerned, knowledgeable, and easy to talk to!"
"Helped us figure out what was wrong with health"
"I really value Dr Rufner's knowledge and professionalism. Great guy too!"
"Great visit where I came away understanding what was actually happening, and a thoroughly explained approach to resolving the issue. Highly recommend."
"Had my first visit with Dr. Rufner by telemedicine. It was nothing short of amazing. I felt totally comfortable talking with him. He had some amazing ideas about how to help me, and came up with a sensible plan - all in 20 min!"
"I was very pleased with my visit last week with Dr. Rufner. He took the time to sit down and talk about my case. He didn't hurry through the visit. He acted liked he really cared---unlike some other specialists I have seen. It was good to have someone so knowledgeable and understanding both."
"Dr. Rufner is incredible."
"Dr Rufner was able to explain things in detail and without confusion."
"Very informative visit."
"I had a great experience seeing Dr. Rufner. He was exceptionally friendly and professional, listened carefully to my conditions and concerns, and most importantly he explained the medical information very clearly. Would highly recommend him."
"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."
"Was very thorough with me and helped develop a solid plan to move forward with. Didn’t seem rushed at all and answered any question I had."
"Dr. Rufner is Amazing. he explains everything, I never feel rushed, He answers every questions and he will even draw pictures for you :) he is a nice warm person who will make you feel comfortable right away. I have been going to see him for a few years and this has never changed."
"Dr. Rufner was kind and patient, taking the time to walk me through the GI issues I had and why I had them, and suggested several different routes of treatment. Everyone in the office was also pleasant and professional. Great experience all around!"
"Very good he respond all questions l asking,Dr Rufner than you."
"Dr. Rufner was great. He listened to what I had to say as the patient, asked all the right questions so we weren't wasting time with unnecessary testing, and was very easy to talk to."
"Dr R was very friendly, took time to explain what was probably going and ea of the respective trt. Plans. One of the best med. off. visit ever. I would highly recommend"
"Very thorough and provided thoughtful advice/feedback for my GERD issue"
"Dr. Rufner was honest, clear in his communication style, and warm. I felt comfortable from start to finish at my appointment and he was great at giving a full explanation of what would or would not be cause for concern. Though the place wasn't a fancy office space as I have seen in most clinics, I wouldn't let that sway your decision. The gal at the front desk was super friendly and I felt like they cared about me as a patient. I recommend this practice!"
"A friendly group."
"Dr. Rufner is one of the most truly caring doctors I’ve had. He has, quite literally, held my hand learning how to live with my horrible disease and is still able to help me focus on the positives. I highly recommend him. With that being said, the supportive staff leaves much to be desired. Any time I’ve called with a question or request and left a message for an MA I either get NO response at all or it takes numerous calls and it may or may not be resolved. I continue to see Dr. Rufner in spite of the assistants because HE is great."
"Amazing doctor, patient first mentality. Takes as much time as you need to really understand your concerns and create a mutual treatment plan. Also, very active in local community in regards to research and alternative treatments. Couldn’t recommend him enough."
"I've been seeing gastroenterologists in various cities for the past 20 years. Dr Kevin Rufner is BY FAR the most informative, patient, kind, and knowledgable doctor I have worked with. He is a member of various advisory boards and study groups around the state and country and so is informed about the latest clinical studies, and he is always willing to take as much time as I need to explain my current health status, his recommendations and reasoning behind them, and address any concerns or questions I have. I have never felt rushed or confused, and even when the news isn't great I leave his office feeling empowered about next steps. I cannot stress enough how much I have preferred working with him over any other GI I've seen. I used to leave my doc's office in tears so frequently because of feeling confused and scared about what I was going through, that I started taking a full day off work whenever I had an appointment, regardless of appointment time. This pattern ended when I started seeing Dr Rufner. I have also never posted a review for a doctor before because I've never had an experience worth sharing until now. I've recommended Dr Rufner to a number of friends and colleagues. I'd also like to point out that every staff member I've encountered at the Colorado GI Ogden Street location has been patient, friendly, helpful, and easy to work with. They've also contributed to my general feelings of ease whenever I need to visit the office."
"My interactions with Dr. Rufner and the staff of Colorado Gastroenterology have been professional, friendly, and reassuring."
"Dr.Rufner was very thorough in explaining my issue and layed out all options in great detail; highly recommend him."
"Dr. Rufner's approach in helping my mom was excellent He took the time to get down to her level to speak to her, looked directly at her and listened carefully to everything she said. He explained his concerns and plans with her in a language she could understand and made her feel very comfortable with next steps."
"This is the second time I've worked with Dr. Rufner. He's very good at answering all my questions, was open and clear with my options. I didn't spend much time waiting and was very comfortable throughout the visit."
"The staff and Dr. Rufner were very friendly. He showed deep concern for my ongoing issue and was very helpful."
"Dr. Rufner really made me feel heard, validated and cared for. I would definitely recommend him to anyone in the Denver area!"
"My visit with Dr. Rufner was a great first meeting. He took all the time I needed to answer my many questions and make me feel very comfortable going forward with my procedure, especially in this time of Covid-19! Dr. Rufner has a very kind and understanding manor and I would highly recommend him to anyone looking for a gastroenterology doctor!"
"Dr Rufner listened carefully to my medical issue, asked me relevant questions and provided me clear explanations of my likely condition. Dr Rufner provided his plan to help me. I left his office with confidence that I am in very good hands with a knowledgeable and caring doctor."
"Dr. Rufner and the women were very helpful."
"Dr. Ruffner listens and is compassionate. He assures you do not feel like a number."
"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."
"My visit with Dr. Rufner was good but trying to communicate with the doctor and office is impossible. Six calls last week and no response. Makes me concerned about a response from him should there be difficulties after a procedure."
"Dr. Rufner was knowledgeable, gave me the information that I needed, and a future course of action."
"Dr Rufner is super personable, knowledgeable, and I feel I can trust him and the answers he finds. He listens to everything you say and is very good at explaining what is going on and the game plan ahead. Very easy to talk to."
"Accessible, professional care. Dr. Rufner is one of the best!"
"My partner Mark says Rufner is great, willing to spend time with patients. His office staff is personable, efficient, professional. Top notch service. Worked with my insurance. No problems."
"Dr. Rufner's friendly, yet professional manner creates a relaxed atmosphere in which it is easy to discuss health issues and symptoms."
"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."
"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!"
"Dr. Rufner treated me, not just the stomach issue I was having. He is a good doc."
"Dr Rufner is extremely knowledgeable and makes you feel very comfortable during your visit."
"I was very impressed with Dr Rufner. He had a informative and caring bedside manner. I will definitely recommend him to family and friends."
"Dr, Rufner talked through actions steps for my stomach issues and helped rule out illnesses based on my history. He was helpful and informative, however the appointment was extremely rushed. I wasn’t able to get all my questions answered and he rushed through explanations of the recommendations he was providing. I hope to continue with Dr. Rufner over the coming months and then I’ll be able to give a more accurate description of his care."
"Kevin Rufner is the 3rd GI doctor I have gone to and the only one who has sat down and actually listened to the issues I had and helped me understand them. Definitely recommended."
"I went to see Dr. Rufner today, and the overall experience was fantastic. The receptionist was very courteous and friendly. I only waited a few minutes, and then was called into the medical exam room. When Dr. Rufner arrived, he took the time to listen, and then evaluate an appropriate course of action. He was extremely knowledgeable in his field, and at the same time he communicates in a manner where you can fully understand the theory behind his recommendations. Great doctor, and great human being."
"In August I had a colonoscopy with Dr. Rufner at the Golden location, and a few weeks later, my husband had his done in Denver. Dr. Rufner is the best in every way you want a doctor to be. He explains EVERYTHING and spends as much time as you need. I guess that's called a good bedside manner. Additionally, the folks that work on his team are fantastic. The receptionist immediately greets you with a big smile and makes you feel welcome. Then, the nursing staff takes over and they couldn't be any nicer and did I mention how efficient, professional and kind they all were? Anyway, I can't say enough positive about these folks and want to thank everyone at Colorado Gastroenterology for making a difficult procedure almost enjoyable."
"Very nice visit with Dr Rufner."