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Patient Reviews

At GI Alliance of Illinois, we are a physician-led practice with a patient-centric focus, meaning you will always be our top priority. We know how important it is to feel comfortable with your provider and to know that you are cared about every step of the way. When choosing a provider, it is important to find one that is not only knowledgeable about your GI condition but one that can provide you with the support you need. Our practice is known across the state because of our top rated gastroenterologists and staff. We would love for you to browse through the reviews below from past and present patients who have been right where you are so that you can make the most informed decision when choosing a GI provider. Once you have read the reviews, reach out to a GI Alliance of Illinois location near you— we would love a chance to connect with you and find out how we can help you achieve better GI health.

5.0 Review from T.C. Source: Google Sep 22 2022

"Dr Adler arranged to see me within 24 hrs regarding a high -anxiety problem… solved the issue… and set the “next step” in process He was compassionate… didn’t do anything unnecessary…and demonstrably kind."

5.0 Review from J.M. Source: Google Sep 20 2022

"I have recommended Dr. Douglas Adler to friends and recommend him to anyone reading this review. Dr. Adler analyzed my issue and prescribed medicine that has kept me me remission for decades. When I need a colonoscopy Dr Adler is on time, upbeat and most importantly thorough with the procedure."

5.0 Review from A.A. Source: Google Sep 20 2022

"Not only is Dr Adler a top physician he is also an awesome person I recommend Dr Adler with no reservations I consider myself lucky to have access to such an accomplished physician and his fine staff"

5.0 Review from F.K. Source: Google Jul 26 2022

"I have been going to Dr Adler for 27 years. He is a tremendous doctor and human being. I highly recommend him."

5.0 Review from T.D. Source: Google Jul 06 2022

"My wife and I have been going to and getting procedures from Dr. Adler for 20 years now. I highly recommend him and all at Glen Endoscopy."

5.0 Review from D.Z. Source: Google Jul 06 2022

"Professionally done procedure with no surprises. Everyone was very respectful and kind. Smooth process. I would definitely recommend Dr Adler."

5.0 Review from B.O. Source: Google Jun 28 2022

"Everything from staff, facility and doctor was excellent."

5.0 Review from J.T. Source: Google Jun 16 2022

"Dr. Adler and his staff are extremely proficient and professional."

5.0 Review from E.P. Source: Google May 31 2022

"Was a very efficient and professional experience."

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

"Every person I came in contact with, from the front desk to the doctor to the staff before and after the procedure were terrific- helpful, patient and caring. Can't thank them enough..."

5.0 Review from K.T. Source: Google May 10 2022

"This was my first time having this procedure. Dr. Adler, along with the other staff, made me feel completely at ease. Highly recommended."

4.0 Review from P.O. Source: Google May 10 2022

"Getting an appointment with Dr. Adler was very difficult and took much longer than expected. However, when I saw Dr. Adler I was pleased with his expertise and interest in my condition. I was very satisfied with his consultation., Treatment and his sincerity and being sure I was to see him if I had any more difficulties. A follow up appointment was scheduled."

5.0 Review from K. Source: Google Mar 24 2022

"I have been a patient of Dr Adler for over 20 years. He is caring, responsive, good listener, and most importantly a dedicated and excellent doctor. I would recommend him 100%."

5.0 Review from J.A. Source: Google Feb 20 2022

"I think Dr Douglas Adler is Great! I have total confidence in him! He takes time to listen to me and answers my questions."

5.0 Review from A.L. Source: Google Jan 17 2022

"Dr Adler took the time for a thorough question and answer! He suggested food to help with my issue that no other doctor I’ve see for 30 years has told me! He has a very nice bedside manner and cares. He also suggested a possible diagnosis of a condition I may have that I had not heard in 30 years. I highly recommend Dr Adler!"

5.0 Review from B.C. Source: Google Jan 13 2022

"I have been going to Dr Adler for years. I trust him with whatever is going on with me. He takes his time with me and I never feel rushed. He’s a great doctor."

5.0 Review from S.G. Source: Google Jan 08 2022

"Everyone was awesome Dr. Adler was great like always I recommend that you should go to Dr.Adler and is stag was also awesome and very professional and friendly"

5.0 Review from L.J. Source: Google Dec 19 2021

"Dr. Adler has been my family's trusted gastro doc.for many years. He is a great diagnostician with a common sense approach. He is easy to talk with and is always there if you need him. L.Abbet"

5.0 Review from M.H. Source: Google Dec 01 2021

"Dr. Adler is an excellent and caring doctor. He is highly experienced and interacts with you. I’ve been going to him for years and I trust him."

5.0 Review from P.K. Source: Google Nov 25 2021

"highly professional and addressing your concerns personally and heartedly."

5.0 Review from I.Z. Source: Google Oct 28 2021

"Dr. Adler has a great bedside manner and rapport with his patients. He was very thorough in his explanations and made me feel totally at ease with the procedure. I would not hesitate to recommend Dr. Adler to my friends and family."

5.0 Review from M.B. Source: Google Oct 06 2021

"He is a great doctor and cares about the well being of his patients. I've been seeing him since 2001"

5.0 Review from J.M. Source: Google Aug 28 2021

"Dr. Adler is awesome! Funny, personable, down-to-earth, and knowledgeable. He takes the time to listen and understand the issues at hand. We felt very comfortable in his care. He was a referral from another physician, so that in itself is a good thing. My teen daughter will continue to be a patient of his in the future. He reassured her that what she’s going through is treatable, and that put her mind at ease. Great bedside manner!"

5.0 Review from I.S. Source: Google Aug 23 2021

"I would like to highly recommend dr. Adler as a great specialist and also as a very nice person. He makes your appointment very comfortable. My mother in law was his patient this time, but for sure my husband and I coming very soon. Prevention is more than half of your health.I like his approach to the patient . All procedures are so smoothly done. Gratitude also for the all nurses and the entire staff in the clinic who helped us to feel comfortable.Everyone is so nice and hospitality. Thank you so much for taken care of my mother in law in the best manor. See you soon. 🙏"

5.0 Review from T.D. Source: Google Aug 10 2021

"even though I hate going to any medical service he did a good job in all facets"

5.0 Review from J.L. Source: Google Aug 05 2021

"Dr Adler is amazing"

5.0 Review from L.B. Source: Google Jul 28 2021

"Wonderful doctor caring and considerate!!!’"

5.0 Review from D.J. Source: Google Jul 27 2021

"I was having my first colonoscopy and Dr. Adler and his team did a great job. I felt his was very delicate with his examination and explanation of the procedure and then executed with perfection. I’m a very happy patient with my results! Thank you Dr. Adler and team!!!!"

5.0 Review from B.A. Source: Google Jul 15 2021

"Dr.Adler was extremely professional and thorough at my last procedure. Every aspect of the results were explained and the staff was kind and caring"

5.0 Review from A.M. Source: Google Jul 15 2021

"Dr. Adler is a genuinely nice person and did a great job of explaining things to me. Excellent doctor! He really knows his stuff. Everyone working at his office is super nice and polite and most importantly competent. Considering we have been going through a pandemic, I give them extra kudos and also to the folks at the Glen Endoscopy Center where I had my colonoscopy. Everybody was so professional and efficient and kind."

5.0 Review from J.D. Source: Google Jul 15 2021

"I felt very well cared for and that my comfort was important to the medical staff. Dr Adler and his team are very professional and caring. They answered all my concerns and made me feel completely at ease. When I had questions before my procedure the nurse was quick to get back to me with guidance. I would highly recommend Dr Adler and the Glen Endoscopy Center."

5.0 Review from D.L. Source: Google Jun 19 2021

"Listens to his patients and offers great advice"

5.0 Review from M.D. Source: Google May 22 2021

"Dr. Adler was most accommodating. I was originally sceduled at another facility but it was a long way away and I was anxious to get in to see a gastroenterologist. I had a positive test indicating the possibility of cancer. My cardiologist recommended him and I was scheduled to see him the next day. He and his staff are wonderful. They carefully explain everything. Which helps allay a patient's apprehensions. My procedure went very well and I am most grateful. If you have a need of a gastroenterologist he is the man. Please do not hesitate. I am a nurse and have dealt with many physicians over the years and I really like and respect him."

5.0 Review from M.A. Source: Google May 17 2021

"This was my first colonoscopy experience, but at 57 I knew I needed it done. I had some trepidation going into the whole process, but mostly uncertainty. But after leaving Dr Adler's office I was pretty amazed at how easy it all was. From the time I walked in to a warm and genuine greeting from one of the nurses (I think her name was Jackie) to the time I walked out a couple of hours later, it was stress-free, painless, and comfortable. Including the front desk person and Dr Adler I believe there were five people I interacted with during the procedure. Each of them was very helpful, making me comfortable and putting my mind at ease. When I was brought into the room for the procedure, the nurse anesthetist (Nikki or Nicole) explain what she would be doing, and after administering the anesthesia I think I was out within 30 seconds and "came to" after a very deep and satisfying sleep. There were no complications during the procedure, images were shown of a few polyps that were found, and I was told that I would get news of the test results soon afterward. While some people have reported being a bit loopy afterward, I felt no odd side effects and had a pretty normal day from there on. They asked if I wanted a follow-up "well-being check" which I declined, since everything had gone so well. The office did follow up with a phone call with tested results in a reasonable time. In summary, my experience with Dr. Adler and his staff was really "first rate.""

5.0 Review from M.F. Source: Google May 17 2021

"Dr. Adler is a wonderful doctor and is very caring and supportive of his patients. He always seems to calm any anxiety causing symptoms that occur. I have been under his care for years and have been functioning as a normal person. Prior years I experienced many uncomfortable symptoms. Now I am doing well."

5.0 Review from L.G. Source: Google May 16 2021

"I’ve been a patient of Dr Adler’s for many years. He has taken good care of our whole family for many decades and I recommend him to everybody who needs a colonoscopy or endoscopy! It’s always nice to see Dr Adler who stays as young as the first time we saw him! Leah and Robert Gluck"

5.0 Review from J.R. Source: Google Apr 17 2021

"Dr. Adler is outstanding in all respects. I would highly recommend him to others."

5.0 Review from H.N. Source: Google Mar 27 2021

"My husband had a wonderful experience. Dr. Adler is an amazing doctor ... very experienced and professional but personable as well!! Wonderful doctor for people who have anxiety. He is an amazing person w a wonderful bedside manner"

5.0 Review from J.D. Source: Google Mar 12 2021

"Excellent!! Dr.Adler and his entire staff are great!"

5.0 Review from T.“. Source: Google Mar 11 2021

"Was able to get a immediate appointment for a gastro intestinal problem I was experiencing. His medical diagnosis of my issues was explained in terms that I could easily understand. He then prescribed medications to put me on the right track and follow up care."

5.0 Review from K.P. Source: Google Mar 11 2021

"I’ve been with Dr Adler about 30 years, which clearly speaks to my faith in him and his effectiveness as a physician. I was encouraged to change to a gastroenterologist in the same system as my other doctors, but all this did was prove how on spot Dr. Adler is for meeting my needs and prescribing an effective solution to whatever problem needs addressing. I recommend him so highly that every member of my family uses him. Simply said, knows his stuff."

5.0 Review from D.K. Source: Google Jan 01 2021

"Dr. Adler has my complete confidence. He communicates well and is a good listener. He always gives me a full explanation of the current state of my health. His manner is always friendly and professional."

5.0 Review from S.H. Source: Google Dec 03 2020

"Dr Adler is the best gastroenterologist!!!"

5.0 Review from R.D. Source: Google Dec 03 2020

"Dr Adler’s verbal approach is very calming. He took the time before and after the procedure to explain everything. The people in his office are very kind along with all the professionals that helped during the procedure. Everyone at the center helped make something that one dreads a little more comfortable."

5.0 Review from J.S. Source: Google Nov 23 2020

"Very professional and concerned."

5.0 Review from R.W. Source: Google Nov 22 2020

"On time, professional, courteous and safe environment."

5.0 Review from M.G. Source: Google Nov 04 2020

"I needed an emergency appointment and the staff and Dr. Adler accommodated me. Dr. Adler listened and gave me medication and instructions which has helped me. That is as far as I have gotten at this point."

5.0 Review from M.P. Source: Google Nov 03 2020

"Dr Adler is what you want in a doctor, he’s caring, professional and explains things to you in a way that you can understand, this is the Doctor you want to help you with what ever medical issues you may have"

5.0 Review from J.R. Source: Google Nov 03 2020

"After only a few minutes of conversation I knew I made the right choice. I am confident I will get the best treatment and medical attention/advice from Dr.Adler!"

5.0 Review from J.R. Source: Google Nov 01 2020

"Dr.Adler was very calming and informative. His mannerisms and open personality made for a great first visit and reassured my decision of picking Dr.Adler."

5.0 Review from R.B. Source: Google Aug 10 2020

"I cannot speak highly enough about the entire experience! Dr. Adler, his associates, and the facilities were above expectations. COVID-19 precautions were explained in advanced and followed. I felt completely safe. Truly a very positive experience, including pre-procedure calls at home and follow-up calls after the procedure. Thank you!"

4.0 Review from M.B. Source: Google Aug 07 2020

"The appointment went well once I new how and when I would be contacted. The staff did not make it clear when I made the appointment."

5.0 Review from P.G. Source: Google Aug 07 2020

"Dr. Adler has provided exceptionally good care of our family for decades. Now during the COVID pandemic we were relieved to have access Dr. Adler's care and expertise virtually."

5.0 Review from J.K. Source: Google Jul 23 2020

"I was promptly called for my appointment. Dr. Adler was very thorough and not rushed."

5.0 Review from C.G. Source: Google Jul 21 2020

"Office visit was quick, Courteous and professional"

4.0 Review from S.K. Source: Google Jul 16 2020

"Excellent medical service, examination and advice."

5.0 Review from J.K. Source: Google Dec 21 2019

"Appointment was kept on time, Dr Adler has a friendly yet professional manner, answers all my questions and takes as much time as the patient needs. Nurse/PA who took vitals and such kind of machine like."

5.0 Review from W.G. Source: Google Dec 14 2019

"Dr Adler was great. Spent time with me explaining my medications & diagnosis."

5.0 Review from D.S. Source: Google Dec 10 2019

"I was very happy with my visit to Dr Adler he listened to me and is trying to address my issues, he's like a regular guy he talked with me not down to me I highly recommend him"

5.0 Review from L.F. Source: Google Dec 09 2019

"Punctual with his appointment times, very kind and helpful. Takes his time and listens to your concerns and issues"

5.0 Review from L. Source: Google Nov 16 2019

"Dr. Adler was so kind and listened to all my concerns. He made me feel much more comfortable about an upcoming procedure. His office staff is friendly and very efficient."

5.0 Review from P.R. Source: Google Nov 12 2019

"Dr. Adler is a fantastic gastroenterologist! I have been a patient of his for many years now, and have the highest confidence that I am in great hands with him! He and his staff are always so nice and efficient. But most importantly, he is very thorough in his assessment of my condition and always takes the time to listen. My procedures have been painless and reassuring. I have referred family members to him, and would recommend him to anyone if need of a great gastro doctor!"

5.0 Review from A.G. Source: Google Oct 24 2019

"Dr. Adler and Staff were wonderful! My recent office visit and the procedure that followed were nothing but efficient and problem free. I was taken care of promptly, all of my questions and concerns were addressed. Also, The Glen Endoscopy Center should receive the highest marks for providing high quality care from its' entire staff."