Dr. Cullen received his medical degree from Harvard Medical School. He conducted his residency in internal medicine at Beth Israel Hospital in Boston, MA, and fellowship in oncology with the National Cancer Institute, National Institutes of Health in Bethesda, MD. Prior to joining the University of Maryland School of Medicine, Dr. Cullen served as Professor of Medicine, Oncology and Otolaryngology, at Georgetown University, and Interim Director of the Lombardi Cancer Center at Georgetown University. At the University of Maryland Greenebaum Comprehensive Cancer Center, which is ranked as one of the nation’s top cancer programs, Dr. Cullen oversees a staff of 275 physicians and researchers. Under his leadership, the cancer center has expanded its clinical and research programs significantly and was named a National Cancer Institute-designated cancer center in 2008 and a comprehensive cancer center in 2016. Dr. Cullen’s laboratory examines the mechanisms of chemotherapy resistance in head and neck cancer. His team was the first to describe racial survival disparities in head and neck cancer. In 2011, he was appointed by President Obama to a five-year term as a member of the National Cancer Advisory Board, an advisory committee to the National Cancer Institute. He has served as chairman of the Board of the American Cancer Society and is a recipient of the American Cancer Society Excellence in Research Award. Dr. Cullen received his Bachelor of Arts degree from Dartmouth College. Dr. Cullen has served as a director of AVEO since 2021 and is a member of the audit and compensation committees.