Meet Charlie

Charles McMahon, MD received his medical degree from the University of Oklahoma College of Medicine in 2012. In 2015 he completed his internal medicine residency at the University of Colorado. He went on to complete a gastroenterology and hepatology fellowship at the University of Missouri-Kansas City (UMKC) in 2018. Following fellowship, Dr. McMahon moved to Chicago and served as assistant professor of medicine at Loyola University Medical Center in gastroenterology and nutrition.

While caring for a variety of digestive diseases, his areas of clinical interest are disorders of gut-brain interaction, gastroesophageal reflux disease (GERD), eosinophilic esophagitis, and colorectal cancer screening and early detection. Dr. McMahon is certified by the American Board of Internal Medicine (ABIM). He is a member of the American Medical Association (AMA), American Society for Gastrointestinal Endoscopy (ASGE), American Gastroenterology Association (AGA), and the American College of Gastroenterology (ACG).

Charlie enjoys reading, jogging, watching sports, and spending time with his family and friends.

“I chose gastroenterology because digestive health affects the whole person, and I believe thoughtful, individualized care leads to better outcomes.” -Charlie