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

Dr Arenas and his surgery center A plus the follow up team F minus! since Dr Arenas doesn't do the…read morefollow up his partner Dr Baez does if you call and insist on seeing a dr rather than the NP. However Dr Baez doesn't listen to you and berates you if you question him. He would Not consider that I didn't need an acid blocker as I felt I had all the symptoms of having low acidity. After many many days of pain and suffering including gaining 20 pounds in a span of 3 months it was discovered (only by a blood test ordered by my PCP) I had extremely high markers for hypothyroidism, which is caused from low acidity. When I brought my findings to Dr Baez he immediately dismissed me to his NP. If the gastrointestinal doctor can't diagnose if a patient has high or low acidity what specialist doctor can? I would not recommend Dr Baez for anyone that needs good gastro medical advice! however I would recommend Dr Arenas for gastro surges. he was very kind and competent.

Gastrointestinal problems are not always straightforward. Over the past two or three years, Dr…read moreHanna has done everything he could to diagnose my abdominal pain issue. After exhausting all the possibilities he could think of, he ended up referring me to a general surgeon. A small bowel resection was required to mitigate the problem. Dr Hanna continued to follow up with me by performing routine colonoscopies. After my last one in June 2026, he said I'm in the clear and, partly because of my age, he is not recommending any further procedures.

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.

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.

This was my first visit. All the staff were excellent except for Dr. Iftikhar. He rushed through…read moremy appointment and had no respect for me. He didn't help me whatsoever. He probably spent 5 minutes at the most with me. I was so disappointed. I will not return for his services.

An office visit will take you half the day, and he has the rudest, snottiest women running his…read moreoffice. This place is atrocious and unbearable. They tell you your appointment is at 8:30, then after waiting 90 minutes, they tell you "oh- you weren't supposed to be here until 10:30, I don't know who told you that!" I listened to a 30 minute conversation about outfits and lipstick during my wait.. i have been a nurse for over three decades and this is not quality care!

The name Gastrointestinal pretty much describes the type of Medical care. After one colonoscopy I…read moreneeded an immediate recall due the findings of first I was put off 4 wks JUST for an office consult. Not happy with that level of unconcern on their behalf, when I on the other hand with my imagination all over the map beyond miserable waiting. During that time my home sold and I'm moving back to my home state. I kept the follow up appointment but I will continue my care elsewhere. Dr Klein is a sweet caring Physician. I highly recommend him. His staff, depending who you get answering the phone will or can be helpful. Often you're sent to a VM or not answering at all. That happened to me several times. Again I liked Klein a lot.

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.

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.

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.

I e had digestive trouble for 6 years. My first gastro doc misdiagnosed me, the second one told me…read moreI was too old after my latest colonoscopy and they refuse to discuss my results. So I turned to Frederick Klein at Arizona Gastro. They refuse to see me until a year has passed since my last appt with my former doc. I won't last another 6 months like this.

I went to Dr. Tsai for a colonoscopy in 2023 and woke up that night in excruciating pain. I found…read moreout later that they broke my back and I have had spinal and leg pain ever since. I am considering a malpractice suit.

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.

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.