After graduating from the University of Pennsylvania medical school in 2009, Dr. Johnson came to Stanford for his internship and residency and was then selected to stay on as a chief resident in 2012. More Upon completing his chief year, he stayed again for his hematology/oncology training as a fellow from 2013-2016 and was delighted to join the faculty in the division of oncology in 2016 as a clinical assistant professor specializing in the care of patients with GI malignancies. In the oncology division, Tyler currently leads the housestaff inpatient oncology service (med 10).