His office repeatedly don't call back in a timely manner and make mistakes regarding basic…read moreinsurance and medication. I love him as a provider but his office is a miserable place.

Dr. Ismail is the best , absolutely, without a doubt. Unfortunately he relocated to Nevada several…read moreyears ago. Wish he would come back.

The office space is nicely oriented. However, the mixed my appointment t up leaving g me waiting…read moreseveral hours to see NP to schedule exam. I'm going to re-review them after procedures to give full review instead of focusing on the initial mistake. Drew

Just did my introductory consult. The office was very professional and efficient. Had a wonderful…read moreexperience with one of the staff members - Her name is Sarah. Been to many physician offices and she was the best ever and doing the introductory blood pressure, weight and intro to the office. She was unusually sharp and cheerful - so alive and welcoming. I can't say enough about how she adds to the office experience.

I was able to get an appointment rather quickly and they arranged for ultrasounds and an endoscopy…read morewithin a couple of weeks. I got a phone call with results within days of the procedure. I am confident in this practice and the staff I dealt with. Would highly recommend them.

Absolutely unacceptable billing practices…read more I was overcharged for a preventive screening -- something that is 100% covered by insurance. Not "maybe covered." Not "partially covered." Fully covered. And instead of automatically correcting the overpayment once insurance processed the claim, this office just... keeps the money unless you call and demand it back. Let that sink in. They will not issue refunds automatically. The patient has to catch the mistake and call. How many patients never even realize they were overcharged? How many people assume the office knows what it's doing and trust the bill? This office handles insurance claims every single day. They know how preventive services are billed. They know preventive screenings are covered at 100%. Pretending confusion or acting like this is some unpredictable insurance mystery is insulting. This isn't a rare coding anomaly -- it's routine, standard billing. Patients shouldn't have to audit their own medical bills to make sure a provider isn't sitting on their money. If you overcharge, you fix it. Automatically. Period. If you go here, scrutinize every single bill and compare it to your EOB. Apparently, that's the only way to make sure you're not quietly overpaying.

Dr Moussa is very knowledgeable and cares about his patients. He took the time to explain my…read moreconcerns and get me on the right path going forward. I highly recommend him.

After reading Yelp reviews I suspected they do not do colonoscopy procedures by any practitioner…read morehere. That is important for us to know now , as my wife is due By the years rule. 10. So I will keep looking.

Everyone is caring and willing to help and answer any questions. The type of care from the GI…read morespecialists is top tier!

I had visit with NP before my upper endoscopy . I was told I would have duodenal bx due to hx poor…read moreiron absorption and vit b12 absorption as evidenced by high MMA levels and several biopsies of stomach This was not done . I was told by Banner University during a consultation duodenal bx was important Dr Kisser decided not to do duodenal bx and only did bx for H pylori . He claimed he could visualize duodenal area . Medical guidelines clearly state bx is only way to confirm No I would not trust this facility And question if this doctor up to date on current literature Office staff and nurses pleasant but I would have preferred complete test as I have had low iron absorption , high mma level's indicating poor vit b12 absorption and this Dr only sent bx for H Pylori

Probably the worst doctor visit of my life. I am a younger female, no past G.I. issue, don't smoke,…read moreand he completely dismissed my concerns. He printed me over 50 pages of scientific literature and said it should go away. Luckily English is my first language and I have a science background (I don't mention the second part ever). Well guess what, I went to another G.I. got some blood tests, CT scan, and it was something bigger. If you want someone who will miss something, go to this doc. If you want someone who will listen to you, advocate for you, go to any other doctor. I only took this appointment because it was the first one available, I'd recommend anyone to wait for another doctor, even if it's another one in the same clinic. This was the first doctor that I actually left in tears. Do not waste your time.

Dr. Shekleton performed an endoscopy on me and identified my problem. He prescribed the proper…read moremedicine for and explained the results of my test. I feel great now and I owe it all to him.

I switched to this practice after receiving horrendous care at Arizona Gastroenterology. It was…read morelike night and day. I've never seen such a clean office and all the staff were very professional and caring. Dr. McNerny is excellent and came in after my endoscopy to go over the results. Unlike Arizona Gastroenterology which sends a medical assistant to read a scripted result. The waiting rooms are spacious and the exam room was spotless. I went all the way across town to get to this office and it was well worth it.

Before opting to have my procedure done here, I sat down with their front desk and billing, and we…read morewent over in great detail what this was going to actually cost me. From their telephone recording to signs all over the building, they say they 'collect ALL copay and co-insurance' upfront before scheduling any operations. They reached out to my insurance, we figured out what this would truly be out of pocket for me, and I paid them in full that day. Well, they messed up and I am well over $1500 in unexpected medical bills at this point. They said it was my fault. I have all their notes. I have my timeline and I know how serious I was trying to get in front of this, but they don't care and you all should be warned as well. Maybe look for someone more organized. They're so behind that when they send you an invoice, to pay, they expect you to write your credit card number on a piece of paper and mail it back to them. Update: I went into their office to pay. The place where I originally made my payment. They told me they wouldn't accept my payment in office and said I needed to return with my invoice or use their billing department method. I'm not writing my credit card info on a paper and mailing it. Update 2: After some back and forth, they agreed to take my payment. How nice of them. They assured me I was paid in full. This was over two weeks ago now. I just received another invoice from them. Update 3: I am now on my 5th ask - would you please send me a statement that I am paid in full. They have not sent it. I may need to go back to their office and get something in writing face to face. I don't trust their record keeping and need to protect myself. I wonder if the providers know how bad they are managed. Please also note they have no public facing email so all you can do is call. Chaos. Another edit!! They just sent me another invoice!

Dr Mezher and his staff were the utmost professionals and treated me extremely well. My procedure…read morewent very well and I recommend them highly for any need for gastroenterology professionals. The pre/post op nurses Rachel and Sarah were unbelievable as well. They were extremely caring and are extremely knowledgeable and competent.

Had a colonoscopy on 3/2/23 at the Sierra Vista location. Went off without a hitch. Great medical…read morestaff and office staff. Procedure was very thorough and was right on time. I highly recommend them.

Good gone. He really screwed my up. I had to spend a week in the hospital at N. W. It was total…read moretorture. Why? He say he didn't know why he cut my colon, after doing so many a day? I am still not the same. There isn't anyone at Az. Gas I would trust, the time lace is like a factory, for them to make money.

Coming back to Tucson to Dr Tsai - He is the best Gastroenterologist and has done multiple…read moreColonoscopies and EGD's on me and wife. After procedure, he hands you completed, color report with picture walking out the door and very smart. Don't want to see or start with anyone else, so travelling over 1,000 miles to see him again.