daup h i n cm s .org Features Celiac Disease By KOFI CLARKE, MD, FACP, FRCP, (Lond) Professor of Medicine, PennState College of Medicine Chief, Gastroenterology and Hepatology, PennState Health/ Milton. S. Hershey Medical Center 12 Summer 2017 Central PA Medicine C eliac Disease is an immune mediated disorder seen in genetically predisposed individuals who ingest gluten. Gluten is found in wheat, barley, rye and cross contaminated oats. The condition affects 1% of the US population (approximately 3 million people).http://www.dauphincms.org