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
and was a good experience.
Dr Qualich took his time with me answering all my questions and explaining the results.
Thank you all, especially Roger!
Thank you all so very much!
Allen Jefferson Ed.D, MS
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!
For a procedure that isn’t much fun
Regarding Dr. Wille, he was my father’s GI doc and helped him live some 20 years after his colon cancer. As for me, I’m in my early 60’s and Dr. Wille is well aware of my family history, taking great care of me and has a great bedside manner.
I met Nicolette this week for the 1st time and she was easy to talk to (even if it is/was a difficult conversation).
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!
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.
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