Find a doctor
Our board-certified gastroenterologists are experts in caring for digestive health conditions and screening procedures, such as endoscopy and colonoscopy. Learn more about our digestive health doctors below. For more information, please call Community Digestive Center at 765-298-4700.
Jon M. Maier, M.D.
Dr. Maier is a native of Anderson, Indiana. He obtained his bachelor of arts degree at Indiana University, as well as his medical degree at Indiana University School of Medicine. He did his postgraduate training in internal medicine at New Hanover Memorial Hospital in Wilmington, North Carolina, and at North Carolina Memorial Hospital in Chapel Hill, North Carolina. He did his gastroenterology fellowship at the University of Cincinnati, Cincinnati, Ohio.
He is certified by the American Board of Internal Medicine in internal medicine and gastroenterology.
He returned to Anderson to open his private practice and has been on staff at Community Hospital since then. He also served as chief of the Department of Medicine at Community Hospital in 1989. He has been the medical director of the Community Hospital Endoscopy Center since 2004.
He is married and has four children and two step-children.
Rod A. Nisi, M.D.
Dr. Nisi is a native of London, England, and is a naturalized citizen. He obtained his bachelor of science degree and did pre-med study at Loyola University in Los Angeles, California. He obtained his M.D. at the University of Cincinnati School of Medicine, Cincinnati, Ohio. He also completed his internship in internal medicine at University of Cincinnati Department of Medicine. He completed his residency in internal medicine and fellowship in gastroenterology (Tier 3: therapeutic biliary endoscopy) at Indiana University School of Medicine. Dr. Nisi was an assistant professor of medicine in the gastroenterology department at Indiana University Medical Center before going to Anderson. He joined the Central Indiana Gastroenterology Group in 1992 and has been on the staff of Community Hospital since he arrived in Anderson.
He is married and has three sons.