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Rockford Gastroenterology Associates
Rockford, IL

John J. DeGuide, MD
John J. DeGuide, MD

Dr. John J. DeGuide is a Board Certified Gastroenterologist, and joined Rockford Gastroenterology Associates, Ltd in 2003.

Dr. DeGuide completed his medical school at Loyola University, Stritch School of Medicine in Chicago, residency in Internal Medicine, and a fellowship in Gastroenterology at Wilford Hall Medical Center at Lackland AFB in Texas. Prior to moving to Rockford, Dr. DeGuide held the position of chief of the Gastroenterology at Wright-Patterson USAF Medical Center in Ohio. Additionally he was the former co-director of the GI department at Rockford Health System.

Dr. DeGuide is a fellow of the American Gastroenterological Association, the American Society for Gastrointestinal Endoscopy, the American College of Gastroenterology and of the American College of Physicians.

Dr. DeGuide is on the Executive Board of the Winnebago County Medical Society. He also is a delegate to the Illinois State Medical Society. Dr. DeGuide is trained in the broad discipline of Gastroenterology and Hepatology.
Christopher M. Gibbs, MD
Christopher M. Gibbs, MD

Dr. Gibbs joined Rockford Gastroenterology Associates in 2008. Dr. Gibbs obtained his Bachelor of Science degree from the University of California San Diego and his Doctor of Medicine degree from Creighton University School of Medicine. He completed his residency and chief residency in internal medicine at the Mayo Clinic and his gastroenterology fellowship at Stanford University Medical Center. Dr. Gibbs is board certified in internal medicine and gastroenterology.

Dr. Gibbs is a member of the American Gastroenterological Association, American College of Gastroenterology, American Society for Gastrointestinal Endoscopy, American College of Physicians, and American Medical Association.

Dr. Gibbs is trained in the broad discipline of gastroenterology and hepatology. He has an interest in inflammatory bowel disease.
Sunil S. Patel, MD
Sunil S. Patel, MD

Dr. Patel is a Board Certified Gastroenterologist. Dr. Patel completed his medical school at New Jersey Medical School, a residency in Internal Medicine at Beth Israel Deaconess Medical Center/Harvard Medical School in Boston, and a fellowship in Gastroenterology at University of Massachusetts-memorial Medical Center/University of Massachusetts Medical School.

Dr. Patel is a member of the American College of Gastroenterology and the American Society for Gastrointestinal Endoscopy.

Dr. Patel is trained in the broad discipline of Gastroenterology and Hepatology.
Arnold Rosen, MD
Arnold Rosen, MD

Dr. Arnold M. Rosen entered private practice in 1990 when he joined Rockford Gastroenterology Associates, Ltd. Dr. Rosen is President of Rockford Gastroenterology Associates, Ltd., co-director of the Rockford Endoscopy Center and also serves as the chairman of its quality assessment committee. He is a clinical assistant professor of medicine at the University of Illinois College of Medicine at Rockford.

Dr. Rosen earned his medical degree from Albany Medical College of Union University in Albany, New York. He completed his internship and residency in internal medicine at Virginia Mason Medical Center, Seattle, Washington and completed his fellowship in gastroenterology/ hepatology at the Veterans Administration Medical Center and Georgetown University Medical Center, Washington, D.C., where he was awarded the Paul R. Wilner Prize for Georgetown University’s Outstanding Fellow. Dr. Rosen is board certified in both internal medicine and gastroenterology. He is on the active staff at Rockford Memorial Hospital, OSF Saint Anthony Medical Center and SwedishAmerican Hospital where he has served on several committees as well as the Board of Directors, Managed Care Service Organization, SwedishAmerican Health System.
Dr. Rosen is a Fellow of the American College of Physicians, and a member of the American Society for Gastrointestinal Endoscopy, American College of Gastroenterology, and the American Gastroenterological Association.
George Tannous, MD
George Tannous, MD

Dr. George Tannous joined Rockford Gastroenterology Associates in 2014. Dr. Tannous completed his medical degree at the University of Cincinnati, his residency in Internal Medicine and fellowship in Gastroenterology at Case Western Reserve University/University Hospitals of Cleveland. As a fellow, Dr. Tannous developed an interest in neurogastroenterology, motility studies, and inflammatory bowel disease.
Dr. Tannous is board certified in Internal Medicine and Gastroenterology. He is a member of the American College of Gastroenterology, the American Gastroenterological Association, the American Society for Gastrointestinal Endoscopy and the American Neurogastroenterology and Motility Society.
Rockford Gastroenterology Associates - (815) 397-7340