Led by Bryson Katona, MD, PhD, Director of the Gastrointestinal Cancer Genetics Program, and Jessica Long, MS, LCGC, Lead Gastrointestinal Genetics Counselor, our Gastrointestinal Cancer Genetics Program at Penn Medicine is comprised of dedicated physicians, genetic counselors and researchers who provide comprehensive, compassionate and state-of-the-art care. Our team provides diagnosis, screening and medical care for individual patients and families who have (or who are at risk of having) a hereditary gastrointestinal cancer or polyposis syndrome.