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John Walling, Jr., DO, FACOI

Dr. Walling retired from the Digestive Health Institute in 2025.  He received his medical degree from the University of Health Science in Kansas City, Missouri. He completed his Internship at Mt. Clemens General Hospital. His Residency training and Fellowship in Gastroenterology were done at Botsford General Hospital in Farmington Hills, Michigan. Dr. Walling is board-certified in both Internal Medicine and Gastroenterology. He has been practicing in the Lansing area since 1992.

What Our Patients Are Saying

Excellent
Digestive Health Institute | Gastroenterology
Based on 2644 reviews
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Mary M.
Dr. Ross listened to me and answered my questions. The staff was friendly.
Karla S.
Love seeing Scott Z. He is always willing to take the time to listen to your concerns. Very helpful individual.
Lawrence O.
Wonderful people great Doctor. Professional environment with extremely helpful information and long-term planning. Highly recommend this practice.
Jeffrey St P.
Received advice but missed a few things - my fault for not bringing ginger them up
Dave Z.
I was seen right away. The Nurse, and PA, were very helpful. They helped me relax.
Mark C.
I came in for a follow up visit concerning my ulcerative colitis and was pleased with my progress and the quality of care.
Kay A.
I saw PA Callie Hart & was so impressed with her. She asked me questions that no other doctor has ever asked me. She was very thorough & answered all of my questions & we came up with a plan on how to proceed.
Lori K.
Everyone was courteous and smiling.
The office staff made me feel as if they were glad I was there.
Diane M.
I saw Cally Hart, because my liver count is high, she explained everything to me and was very thorough I would definitely recommend her if you have any stomach issues.
Este Lebowitz W.
Stellar medical staff!
5 Stars