Our Doctors
We’re proud of our team here at Digestive Health Institute. Our health care providers include some of the very best colorectal surgeons, gastroenterologists and physician assistants. To learn more about our qualified team of specialists, please visit our providers page.

Anezi E. Bakken MD, MS

Sante D. Bologna MD, FACP

M. Emin Donat MD, FRCPC

Partha S. Nandi

Leonard G. Quallich III MD

Jack Tocco DO

John R. Weber MD

Richard T. Wille MD

Tusar Desai MD

Aalia Saeed, MD
What They Are Saying
Thank you all so very much!
Allen Jefferson Ed.D, MS
Dr Qualich took his time with me answering all my questions and explaining the results.
I will recommend to everyone.
For a procedure that isn’t much fun
Dr.Wille was amazing too!
He gave me an excellent impression, not only for his professionalism, but also for his patience to explain things and his very friendly attitude.
One of those people that, from the first instant, you feel you know him from ever.
HOWEVER, Dr. Nandi is outstanding, and I value a good doctor. He is compassionate, knowledgeable, has great bedside... the list goes on. I honestly cannot say enough good things about him, and I always refer anyone his way because you will not find anyone better. Been coming to this office since 2011, and wouldn't dream of going anywhere else.
Dr. Donat and his staff are the best at what they do. They truly care about their patients and go above and beyond to make you feel comfortable and secure. They really listen and make sure that each staff member involved in your care knows any concerns or special care that you require. I will continue to travel to them for as long as I need them! Thank you everybody for making me feel cared about and that I matter.
Dr. Nandi and his team genuinely care about their patients, and it shows in every interaction. He takes the time to discuss your health thoroughly and works with you to create a clear plan for moving forward. The staff is equally wonderful, so friendly, kind, and supportive.
I’m very grateful for Dr. Nandi and his entire team. Their compassion and dedication make all the difference!
From the moment I walked into his office, I felt heard, respected, and genuinely cared for. He took the time to listen to my complex medical history, asked thoughtful questions, and explained everything in a way that was easy to understand. He never made me feel rushed or dismissed — instead, I felt like I had a true partner in my care.
His knowledge, professionalism, and kindness stood out immediately. I left the appointment feeling more confident and hopeful than I’ve felt in a long time. If you’re looking for a GI doctor who actually takes the time to understand YOU as a person and not just a list of symptoms, Dr. Tocco is the one. Highly, highly recommend!
I'll still return to see my doctor because I don't hold him responsible for the incompetency of his staff.
Furthermore, why couldn't I just start paying my balance on the new ridiculous bill you were going to charge, which I don't think is fully accurate? Instead I paid off the $432 to collections because I HAD to, they say, before they can schedule me. The outstanding bill, btw, was from Pinnacle anesthesia because apparently anesthesia is not covered for an endoscopic procedure. Weird. I guess I could schedule my endoscopy and we can talk about me staying awake for it? Does that get me a discount?!?
Then, THEN, I call the collections company and I paid my full balance they gave me, but THEN the office says the billing company got the number wrong and I still owe $107 after paying over $400. Again, I HAVE to pay the debt they already sold to collections before they will help. Their mistake is preventing me from getting help. And the collections agency doesn't know what I owe. I'm being held captive by the incompetency of this billing team. I called Monday and still waiting on a call back. It's Friday.
This has happened to me before here, and I paid the bill off at once then too. I actually offer copays, check my balance ANYTIME I've been in the office. Just because you guys are awful at your job and don't bill properly or timely doesn't mean I should have to suffer.
Holding me captive over a balance in collections that I paid on 8/06, per my credit receipt.
When I asked about my balance in person at my colonoscopy, remember it was $0. I have not been seen since. Yet my bills are from prior to that!
Seriously too, they could've told me my balance before my tele health visit with my doctor. Or the 4 times I scheduled a telehealth this year and got canceled on multiple times by you guys. At ANY point you could have let me know my balance. I also could have opened my mail- I get it- but you could also just be competent at your JOB. I don't get paid for opening my mail. You are getting paid to do your job right.
Dr. Nandi- ⭐️⭐️⭐️⭐️⭐️
Office staff- 🌪
*Update: Rescheduled at their other office although it was after I already figured out my own problem and got it under control myself. Had the endoscopy at Macomb anyway, and it went really smooth. Dr. Nandi is so understanding, and listened when I explained I think I was having a reaction to a medication I was taking. He is honestly great enough to deal with a couple bad apple staff members. Most of the team is great.
Honestly, I don't even entirely blame the billing staff- I blame their system. The people were nice enough, they just don't know how to get everything figured out due to too many hands in the pot. Just be cautious.
Everyone was personable and professional and caring from the office staff to nursing staff to Dr. Desai. I was made to feel comfortable. Today, I received a phone call to make sure I was ok.
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