Dr. Matthew W. Stier, M.D. is a board certified gastroenterologist and joined Rockford Gastroenterology Associates, Ltd. in 2019. He completed his undergraduate studies in pharmaceutical science at Purdue University and graduated with honors from the University of Illinois College of Medicine at Chicago. Dr. Stier went on to complete his residency in Internal Medicine and fellowship in Gastroenterology, Hepatology & Nutrition at the University of Chicago, where he also served as chief fellow from 2017-2018.
Dr. Matthew W. Stier, M.D. is a board certified gastroenterologist and joined Rockford Gastroenterology Associates, Ltd. in 2019. He completed his undergraduate studies in pharmaceutical science at Purdue University and graduated with honors from the University of Illinois College of Medicine at Chicago. Dr. Stier went on to complete his residency in Internal Medicine and fellowship in Gastroenterology, Hepatology & Nutrition at the University of Chicago, where he also served as chief fellow from 2017-2018.
The reviews listed below were collected independently of Rockford Gastroenterology Associates through rater8. Each review represents an authentic and verified patient experience.
Nice doctor.
(1 month ago)
Sep-2025
Very nice and professional
(1 month ago)
Sep-2025
Can't say enough nice things about him. Very pleasant, professional, and quick process all around.
(1 month ago)
Sep-2025
45 minutes late for my procedure that they want me to come in early
(1 month ago)
Sep-2025
I liked Dr. Stier very much! Felt very comfortable with him and felt he was genuinely concerned with my issues
(1 month ago)
Sep-2025
Very friendly and made sure that all my questions were answered! Explained everything about what went on and what he did concerning my procedure!
(1 month ago)
Sep-2025
Great doctor! Awesome bedside manner cares about his patients.
(2 months ago)
Aug-2025
Was very attentive and answered all my questions. Everything was explained to me in a way I could understand. Highly recommend him. Had to wait in his office longer than I expected.
(2 months ago)
Aug-2025
Dr. Stier explained everything to me
He was very courageous, and answers all my questions.
(2 months ago)
Aug-2025
Took lots of time explaining things done and easy to understand.
(2 months ago)
Aug-2025
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Rockford Gastroenterology Associates
401 Roxbury Road Rockford, IL 61107
Dr. Matthew W. Stier, M.D. is a board certified gastroenterologist and joined Rockford Gastroenterology Associates, Ltd. in 2019. He completed his undergraduate studies in pharmaceutical science at Purdue University and graduated with honors from the University of Illinois College of Medicine at Chicago. Dr. Stier went on to complete his residency in Internal Medicine and fellowship in Gastroenterology, Hepatology & Nutrition at the University of Chicago, where he also served as chief fellow from 2017-2018.
During fellowship training Dr. Stier participated in clinical research on the endoscopic management of Barrett’s esophagus and advanced polypectomy techniques, which he presented at regional and national scientific meetings. He has authored numerous peer-reviewed publications and continues to be committed to advancing the care of all patients. Dr. Stier is a member of the American Gastroenterological Association, the American College of Gastroenterology, the American Association for the Study of Liver Diseases, and the American Society for Gastrointestinal Endoscopy.
Dr. Stier is also board certified in Internal Medicine. He is an active member of the medical staff at UW Health Rockford Hospital and OSF St. Anthony Medical Center.
Although Dr. Stier is well trained in the broad disciplines of gastroenterology, hepatology and clinical nutrition, he has special interests in Barrett’s esophagus, improving quality in colorectal cancer screening, liver disease including hepatitis C, and the management of inflammatory bowel disease.
Nice doctor.
Very nice and professional
Can't say enough nice things about him. Very pleasant, professional, and quick process all around.
45 minutes late for my procedure that they want me to come in early
I liked Dr. Stier very much! Felt very comfortable with him and felt he was genuinely concerned with my issues
Very friendly and made sure that all my questions were answered! Explained everything about what went on and what he did concerning my procedure!
Great doctor! Awesome bedside manner cares about his patients.
Was very attentive and answered all my questions. Everything was explained to me in a way I could understand. Highly recommend him. Had to wait in his office longer than I expected.
Dr. Stier explained everything to me He was very courageous, and answers all my questions.
Took lots of time explaining things done and easy to understand.