Jason Starr, D.O., is a medical oncologist in the Department of Internal Medicine at Mayo Clinic in Jacksonville, Florida, specializing in gastrointestinal cancers, including neuroendocrine tumors (NETs), neuroendocrine carcinoma (NEC), colorectal, esophageal, liver, pancreatic, and stomach cancers. His research interests focus on gastrointestinal malignancies, particularly neuroendocrine tumors, and advancing care through clinical trials. Dr. Starr is committed to providing compassionate, patient-centered care and fostering strong relationships with those he treats. He is also actively involved in medical education and the training of future oncology specialists.