GI Alliance physicians are among the most reputable and distinguished gastroenterologists across the nation. Focused on clinical excellence and patient-centered care, our specialists seek to be the partner you need in your quest for better health. We value patient feedback and appreciate every review we receive from those we are privileged to treat. For your convenience, we have gathered a collection of reviews, stories, and testimonials provided by patients who have visited our practices. We welcome you to explore the feedback below to learn more about what it means to be a patient of GI Alliance.
"I’ve been a patient with Dr. Kliewer for 1.5 years. He diagnosed my problem quickly and prescribed the correct medication which worked quickly. He is a down to earth person, easy to communicate with. He listens well. Highly recommend this Doctor."
"Dr Kliewer is absolutely one of the nicest, kindest, caring, and capable doctor I’ve ever had. Very understanding during possible embarrassing situations."
"I recently saw Dr. Douglas B. Kliever about esophagus issues. I've been seeing him for GI issues for many years. As usual he gave good advice in cheerful caring manner."
"Dr. Kliewer has been my doctor for many years. He is knoweledgeable, competent, kind, patient and truly cares about his patients health. I highly recommend him. He saved my life."
"Such a kind and caring Doctor. Truly wants to find a solution and went out of his way to make sure I was taken care of. He validated my pain and feelings for my situation. Had he not, I probably would have lost it and thought I was going crazy. I was so lucky to have gotten an appointment with him and appreciate him actually listening to me and the time he took to look over my history. I wish he was my primary doctor."
"Dr. Klinger was very detailed and investigative in his approach. Communicated well and was pleasant to have as my physician. The staff around him did a great job also. I do highly recommend Dr. Kliewer."
"Dr. Kliewer , I appreciate the kindness you have shown to me and my family. Also you are always there when I needed help with my health issues. The people in the office are wonderful are concerned about your patients. I was very nervous Friday each nurses &Dr were very caring and understanding. The sweet nurse who put my IV IN WAS AWESOME PUT IT IN FIRST TRY. I let her know it’s hard to put one in me . Then th the Dr who sedated me comforted me , Thank you for the GREAT TEAM YOU HAVE. Also so the nurses in surgery I shared a birthday with her so sweet of her ALL OF YOU ARE AWESOME . Freida Fair"
"Took my mom in to see Dr. Kliewer and from the beginning, we received comforting care. His front desk staff was friendly and accommodating. Once we got back to the examining room, a translator was afforded to us and Dr. Kliewer came in and he was friendly, informative, but most important patient and kind with my mother. I truly appreciate Dr. Kliewer, his staff and the work they do. Thank you."
"Dr. Kliewer has been my doctor for many years. He is knoweledgeable, competent, kind, patient and truly cares about his patients health. I highly recommend him."
"Took my mom in to see Dr. Kliewer and from the beginning, we received comforting care. His front desk staff was friendly and accommodating. Once we got back to the examining room, a translator was afforded to us and Dr. Kliewer came in and he was friendly, informative, but most important patient and kind with my mother. I truly appreciate Dr. Kliewer, his staff and the work they do. Thank you."
"Great Dr. He knows what he's doing and I'm glad he still doing his thing. He found and removed 6 pollups 4+ years ago. Now we're setting up to check again in November."
"They all was excellent with their patients and did an amazing job with me, got me in there did my procedure and took excellent care of me, and I would highly recommend him for everyone. And yes I would definitely go back."
"Dr Kliewer has been my doctor for many years. He is very knowledgeable, thorough and has a great bedside manner. I feel confident in trusting him as he monitors my colon and pancreatic cysts and will always recommend him to anyone looking for gastroenterology care."
"I had my 1st appointment with Dr Kliewer and he is very nice and makes you feel very comfortable! Will be taking a test next week and see how that goes and will be visiting with him more after my results and am looking forward to his visit! Was dreading my appointment period and he made it very comfortable for me! Thank you Dr Kliewer!"
"Dr Kliewer is such a great GI doctor. He takes his time and thoroughly explains things. From the time you check in to the time you check out, the entire staff is professional and show they care about you and your visit."
"Dr Kliewer originally saved my life after a botched surgery. I have stayed with him for over 20 years and wouldn’t go to anyone else. He has worked with me when other doctors gave up."
"Everyone was nice and friendly after checking in ,it did not take me long to see the doctor he introduce him self and explained to me how the procedure was going to go and ask me about my medical history and ask if I had any questions on the procedures Dr. Kliewer was friendly and did not rush the time he was with me ."
"Dr. Kliewer , I appreciate the kindness you have shown to me and my family. Also you are always there when I needed help with my health issues. The people in the office are wonderful are concerned about your patients. I was very nervous Friday each nurses &Dr were very caring and understanding. The sweet nurse who put my IV IN WAS AWESOME PUT IT IN FIRST TRY. I let her know it’s hard to put one in me . Then th the Dr who sedated me comforted me , Thank you for the GREAT TEAM YOU HAVE. Also so the nurses in surgery I shared a birthday with her so sweet of her ALL OF YOU ARE AWESOME . Freida Fair"
"I have been a patient of Dr. Kleiver, M.D. for over 10 years. He is very patient and listens to all my questions. His responses has helped me to understand my condition. Always pleasant and caring."
"Dr Kliewer has been my doctor for many years. He is very knowledgeable, thorough and has a great bedside manner. I feel confident in trusting him as he monitors my colon and pancreatic cysts and will always recommend him to anyone looking for gastroenterology care."
"Dr Kliewer and staff were all very professional and very helpful and sensitive to all needs and concerns. Would highly recommend Tulsa Endoscopy and will use them for any future procedures."
"Very comfortable experience. Second visit here. Friendly staff. Your in and out , probably the same with the doctors and nurses performing the procedure, in no time at all. No muss, no fuss. No stress experience."
"Dr. Kliewer, is is very understanding try to get down to the point of what medicines wrong and will sit there and work with you until the problem is solved so totally will recommend"
"Dr Kliewer went out of his way to really discuss the care options I had and find a solution that worked for me. His office staff is professional and caring and they all make you feel more than cared for in what would otherwise be a very uncomfortable situation."
"Dr. Kliewer is very thorough and takes the time to explain every detail of his diagnosis, including why the diagnosis was given, and what the options are. In surgery, he was faithful to explain every detail of what he was doing."
"Dr. Kliewer is an excellent doctor who has performed a Colonoscopy on me twice to remove polyps and insure my health. The office staff is great to work with and everything is done efficiently and well. At the end of each procedure, Dr. Kliewer sat with me for a consultation to show me pictures and review his findings and prognosis. Having had colon cancer in my family history, I continue to know that I am healthy, and if something were to appear, it would be caught early. I feel confident I am in good hands."
"Dr. Kliewer has accomplished all four of the colonoscopy procedures I have had over the years and he still does an excellent job. He is extremely personable, and easy to converse with about the procedure. Great bedside manners and keeps the patient first and foremost in mind during the preop, actual operation, and post operation process. I highly recommend him and his staff."