Dr. Theodore S. Lawrence

Dr. Theodore S. Lawrence, MD, PhD, is an internationally recognized radiation oncologist specializing in gastrointestinal and hepatobiliary malignancies. He serves as Chair of the Department of Radiation Oncology at the University of Michigan Rogel Cancer Center, where he also holds the Isadore Lampe Collegiate Professorship in Radiation Oncology. Dr. Lawrence earned his medical degree and PhD in cell biology from Johns Hopkins University School of Medicine. He completed his residency in radiation oncology at Johns Hopkins Hospital and is board-certified in Radiation Oncology. He is widely regarded for his leadership in advancing chemoradiation strategies and translational research in gastrointestinal cancers.

A pioneer in combining radiation with chemotherapy for liver and gastrointestinal tumors, Dr. Lawrence has led clinical trials that have defined standards of care for locally advanced cancers. His research has advanced the understanding of DNA damage response and tumor biology, with over 300 peer-reviewed publications to his credit. He has served in leadership roles for the American Society for Radiation Oncology (ASTRO) and the Radiation Research Society and has been elected to the National Academy of Medicine for his impact on the field.

In addition to his clinical and research leadership, Dr. Lawrence is a dedicated mentor and educator, training radiation oncologists and physician-scientists who are now leaders across the country. His vision for integrating precision medicine, novel therapeutics, and radiation biology continues to influence cancer care worldwide. Through his commitment to innovation and mentorship, Dr. Theodore Lawrence has shaped the future of radiation oncology and improved outcomes for patients with gastrointestinal cancers.