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.
Dr.Stier was fantastic! He was very professional and has an excellent bedside manner. He explained the procedure very well. I have total confidence in him.
Jul-2025
Trustworthy and compassionate.
Jul-2025
I am so THANKFUL for Dr. Stier. He caught a mistreatment of a doctor in our home area, so I will continue to drive the hour and a half to see him.
Jul-2025
Doctor Srier was very thorough
Jul-2025
Friendly and explained my situation and the procedure before hand.
Jul-2025
He has a great bed side manner and explained the procedure thoroughly.
Jun-2025
Dr. Stier was kind, personable, and efficient but still willing to answer any questions I may have had. My procedure went smoothly and recovery was fast. Also shout out to nurses, especially Nate who assisted.
Jun-2025
Dr. Stier never rushes you. He asks how you’re feeling. He exams your heart and lungs. He asks questions. He’s smart.
Jun-2025
He was very kind and he explained everything perfectly about what we will do now and in the long run to try and treat my symptoms. He’s always able to answer my questions and works with me when I need a doctors note due to my chronic symptoms which I appreciate.
Jun-2025
Very personable
Jun-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.
Dr.Stier was fantastic! He was very professional and has an excellent bedside manner. He explained the procedure very well. I have total confidence in him.
Trustworthy and compassionate.
I am so THANKFUL for Dr. Stier. He caught a mistreatment of a doctor in our home area, so I will continue to drive the hour and a half to see him.
Doctor Srier was very thorough
Friendly and explained my situation and the procedure before hand.
He has a great bed side manner and explained the procedure thoroughly.
Dr. Stier was kind, personable, and efficient but still willing to answer any questions I may have had. My procedure went smoothly and recovery was fast. Also shout out to nurses, especially Nate who assisted.
Dr. Stier never rushes you. He asks how you’re feeling. He exams your heart and lungs. He asks questions. He’s smart.
He was very kind and he explained everything perfectly about what we will do now and in the long run to try and treat my symptoms. He’s always able to answer my questions and works with me when I need a doctors note due to my chronic symptoms which I appreciate.
Very personable