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 S.M. Source: Google Jan 25 2023

"I love Dr. Penn he has been my Gastrentrolgist for 20+ years. He is fast and thorough. I always recommend him to my friends and family"

5.0 Review from B.W. Source: Google Jul 25 2022

"Had a colonoscopy yesterday. From check in to check out every single employee was kind and helpful. Dr Penn was wonderful and very caring. I highly recommend Dr Donald Penn and the staff of Illinois Gastroenterology Institute."

5.0 Review from K.B. Source: Google May 25 2022

"Dr Penn has always treated me with concern and respect. He is always ready to listen to what I have to say. I have great respect for Dr Penn and am glad he is my doctor. He has always went above and beyond what I could ask for. I would recommend him to anyone that needs gastroenterology care."