Dr. Peter G. Mavrelis


To schedule an endoscopy procedure, call

To schedule an office appointment, call

Dr. Peter G. Mavrelis

Joined IMA: 1981

Dr. Mavrelis is board certified in both Internal Medicine and Gastroenterology. He is a Clinical Associate Professor at Indiana University Northwest School of Medicine and performs the following procedures: transoral incisionless fundoplication (TIF), gastroscopy, colonoscopy, ablation of Barrett’s Esophagus, and endoscopic retrograde cholangiopancreatography (ERCP). Dr. Mavrelis has a particular interest in endoscopic treatments for GERD, irritable bowel syndrome and inflammatory bowel diseases.

Practicing Locations

  • Internal Medicine Associates - (Office)
  • Methodist Hospitals Endoscopy Center at IMA
  • Pinnacle Hospital
  • St. Mary's Medical Center Hospital
  • St. Mary's Medical Center - (Office)
  • Lake Park Surgery Center


Medical School: Washington University, St. Louis

Internship/Residency: Milwaukee County Medical Center

Fellowship: Medical College of Wisconsin, Milwaukee

To schedule an office appointment with Dr. Mavrelis please call 219-738-2081.