General Practitioners

• Medical Weight Loss
  ROCKFORD, IL (December, 22 2018) — A late-in-life diagnosis of celiac disease hasn’t stopped Landis Lindell from enjoying food, beer and the activities he loved before being sidelined by unexplained sickness and weight loss.
• Primary Care
  Medical Assistance - Patients who are qualified for medical assistance and/or welfare should notify the scheduler at the time of making an appointment. You must have a primary care doctor referral and present your current eligibility on the day of your appointment.
• Emergency Care
  No Surprises Act - When you get emergency care or get treated by an out-of-network provider at an in-network hospital or ambulatory surgical center, you are protected from surprise billing or balance billing. For more information please see this disclosure about your rights and protections against surprise medical bills.
• Colonoscopy
  Asiya was scheduled for a colonoscopy the following month at the hospital to remove the polyp. "The polyp was quite large considering her younger age. The biopsy results revealed high grade dysplasia, a more advanced stage of pre-cancerous cells," shared Dr. Tannous. "Asiya's polyp had a higher risk of progressing into cancer compared to a typical polyp. I'm glad she came to RGA when she did."
• Constipation
• Irritable Bowel Syndrome
  ROCKFORD, IL (April, 14 2022) — Irritable Bowel Syndrome (IBS) – more than 45 million people in the United States suffer from this common disorder, and it’s a subject few of us want to talk about.
• Diarrhea

Gynecologists

• Pregnancy

Internists

• Internal Medicine
  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.
• Gastroenterology
  Rockford Gastroenterology Associates is committed to providing comprehensive care to meet all of your digestive health needs. Through our Center of Excellence, you can be assured that the care you receive is tailored to your specific symptoms or condition.
• Colon Cancer
  Today, Asiya is healthy but pays closer attention to her body than ever. She is on a high fiber diet and more conscious of her bathroom activities. Because she has no family history of colon cancer, Asiya feels strongly that listening to her body is what saved her life. She urges others to schedule regular screenings as well.
• Endoscopy
  The first office building was located at 1345 Charles Street and was one of the first office based diagnostic endoscopy labs in the United States. Services were also added at this time with Saint Anthony Medical Center in 1980. The practice continued to expand as a regional referral practice for state-of-the-art, hospital based therapeutic endoscopy services.

Neurologists

• Neurolysis
  Dr. Bick has a broad interest in digestive disease and endoscopy, with special interests in biliary disease, pancreatic diseases, and gastrointestinal oncology. He is experienced in managing complex pancreatitis including chronic pancreatitis and pancreatic necrosis. He has advanced training in therapeutic endoscopy including endoscopic retrograde cholangiopancreatography (ERCP), endoscopic ultrasound (EUS) with fine needle aspiration/biopsy (FNA/FNB), celiac plexus block/neurolysis, sphincter of Oddi manometry, biliary and pancreatic ductoscopy, extracorporeal shock wave lithotripsy (ESWL) and intraductal lithotripsy, endoscopic mucosal resection (EMR), radiofrequency ablation (RFA), and endoscopic drainage/necrosectomy. Dr. Bick has published over 70 peer-reviewed articles and abstracts and has authored a book chapter on chronic pancreatitis. He is a recipient of a Young Investigator Award from the American Pancreatic Association and has mentored multiple award winners at national gastroenterology meetings. He is a member of the American Society for Gastrointestinal Endoscopy and the American College of Gastroenterology.

Radiologist

• Ultrasound
  Dr. Steven O. Ikenberry is clinical assistant professor of medicine at the University of Illinois at Rockford and joined Rockford Gastroenterology Associates, Ltd. in 2000. Dr. Ikenberry graduated from Loyola University Stritch School of Medicine and then completed a residency in Internal Medicine, a fellowship in Gastroenterology, and an advanced training fellowship at Indiana University School of Medicine. He served as Chief Fellow and later remained on Faculty and became Co-Director of the Endoscopic Ultrasound Unit at Indiana University.

Plastic Surgeons

• Bariatric Surgery
  Dr. Aaron Shiels 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.

Dermatologists

• Cyst
• Ulcer