Dr. Aaron Shiels, M.D. joined Rockford Gastroenterology Associates in 2004, and currently serves as Managing Partner. He is a board-certified Gastroenterologist and received his medical degree from Washington University School of Medicine in St. Louis where he also completed his Internal Medicine Residency and Gastroenterology Fellowship. As a Gastroenterology Fellow, Dr. Shiels received specialized training in diseases of the liver, pancreas, and biliary tract, including diagnostic and therapeutic ERCP.
Dr. Aaron Shiels, M.D. joined Rockford Gastroenterology Associates in 2004, and currently serves as Managing Partner. He is a board-certified Gastroenterologist and received his medical degree from Washington University School of Medicine in St. Louis where he also completed his Internal Medicine Residency and Gastroenterology Fellowship. As a Gastroenterology Fellow, Dr. Shiels received specialized training in diseases of the liver, pancreas, and biliary tract, including diagnostic and therapeutic ERCP.
The reviews listed below were collected independently of Rockford Gastroenterology Associates through rater8. Each review represents an authentic and verified patient experience.
Very professional. Intelligent response to my questions. Very informative follow up visit. I’m very pleased with my care.
(1 week ago)
Oct-2025
Took the time needed to explain the procedure and what I should plan on doing going forward. The procedure went very smoothly. I have very high confidence in Dr Shiels and highly recommend him.
(1 week ago)
Oct-2025
He was friendly and informative.
(1 week ago)
Oct-2025
Dr Shiels,the best,with great knowledge, he understand us,people ,who having a health problems.
(1 week ago)
Oct-2025
We always have a great experience at Rockford Gastro. Between us and family members, we’ve needed their services several times.
Today, we brought a mentally disabled family member for a ‘first’ colonoscopy. The team members were helpful in advance planning, communication before during and after the procedure.
Savanna, Julie, Mandy & Kris were thoughtful and compassionate in their care. They explained things to us (guardians) and our loved one.
Dr. Shiel spoke with us prior to the procedure and again afterwards, delivering information in a way that we could all understand. He was calming, professional, and kind.
(2 weeks ago)
Oct-2025
Highly recommend Dr Shiels!
(2 weeks ago)
Oct-2025
Very nice. Explained what was going to happen and what the findings were!
(1 month ago)
Oct-2025
Very nice friendly
(1 month ago)
Oct-2025
Dr. Shiels was very nice and very professional. He explained everything to me and I really liked him being my doctor.
(1 month ago)
Sep-2025
Aaron and his father have been providing medical help and direction how to plan to treat my physical health for years. So thankful for all there help
(1 month ago)
Sep-2025
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Rockford Gastroenterology Associates
401 Roxbury Road Rockford, IL 61107
Dr. Aaron Shiels, M.D. joined Rockford Gastroenterology Associates in 2004, and currently serves as Managing Partner. He is a board-certified Gastroenterologist. Dr. Shiels received his medical degree from Washington University School of Medicine in St. Louis where he also completed his Internal Medicine Residency and Gastroenterology Fellowship. As a Gastroenterology Fellow, Dr. Shiels received specialized training in diseases of the liver, pancreas, and biliary tract, including diagnostic and therapeutic ERCP. He participated in research projects studying biliary complications after liver transplant surgery and complications following bariatric surgery for morbid obesity.
At the University of Illinois College of Medicine at Rockford, Dr. Shiels holds the title of Clinical Assistant Professor of Medicine, is the Director of the Gastroenterology Curriculum, and serves on the Medical Executive Committee. He has received numerous teaching awards from the medical school, including the Golden Apple.
Dr. Shiels advocates for our GI patients on a national level, serving on the American Society of Gastrointestinal Endoscopy (ASGE) Health and Public Policy Committee and participating in regular visits to senators and representatives offices on Capitol Hill. He is also a member of the American Gastroenterological Association and American College of Gastroenterology.
Dr. Shiels maintains an interest in pancreatic disease, biliary disease, and liver disease including treatment of hepatitis C and has presented on hepatitis C at local and regional meetings. His hobbies include golf, running, and spending time with his family.
Very professional. Intelligent response to my questions. Very informative follow up visit. I’m very pleased with my care.
Took the time needed to explain the procedure and what I should plan on doing going forward. The procedure went very smoothly. I have very high confidence in Dr Shiels and highly recommend him.
He was friendly and informative.
Dr Shiels,the best,with great knowledge, he understand us,people ,who having a health problems.
We always have a great experience at Rockford Gastro. Between us and family members, we’ve needed their services several times. Today, we brought a mentally disabled family member for a ‘first’ colonoscopy. The team members were helpful in advance planning, communication before during and after the procedure. Savanna, Julie, Mandy & Kris were thoughtful and compassionate in their care. They explained things to us (guardians) and our loved one. Dr. Shiel spoke with us prior to the procedure and again afterwards, delivering information in a way that we could all understand. He was calming, professional, and kind.
Highly recommend Dr Shiels!
Very nice. Explained what was going to happen and what the findings were!
Very nice friendly
Dr. Shiels was very nice and very professional. He explained everything to me and I really liked him being my doctor.
Aaron and his father have been providing medical help and direction how to plan to treat my physical health for years. So thankful for all there help