"A good reliable set of bowels is worth more to a man than any quantity of brains."
- Josh Billings
Dr Mark Efrusy is a pioneer of gastroenterology and osteopathic internal medicine. He was part of the original team of osteopathic physicians who paved a way in Chicago and surrounding areas for Gastroenterology. He has been program director for many years now and has graduated over 30 fellows from our program. He is a great asset to our program and his input in lectures is inspiring and always educational