Dr. Harrison grew up in Virginia and attended medical school there. After completing his residency training in internal medicine at the University of California, Davis, and fellowship training at Oregon Health Sciences University in gastroenterology. Dr. Harrison practices all aspects of gastroenterology and hepatology and has a special interest in promoting colon cancer screening and prevention.

He and his wife Dana have two children. In his spare time, he enjoys spending time with his family, reading, cycling and flyfishing.