Dr. Lee is Professor and Vice-Chair of Clinical Research and Medical Director of Orange County and Coastal Regions in the Department of Radiation Oncology at City of Hope National Medical Center. Previously, he served as Section Chief of Thoracic Radiation Oncology at MD Anderson Cancer Center from 2019-2022. Dr. Lee started his career at UCLA where he rose to the rank of Professor and Vice Chair of Education for the Department of Radiation. At UCLA, he served as Chief of Thoracic Radiation Oncology, Residency Training Program Director, and Director of the Stereotactic Body Radiation Therapy Program. Dr. Lee has an international reputation in the treatment of thoracic and GI malignancies. He has research interests in applying novel technologies such as MRI-guided radiation therapy in the clinic. He led the clinical implementation of MRI-guided radiation therapy program at UCLA as the 3^rd site in the world with this innovation. In addition, he is a clinical trialist who is interested in combining novel radiation therapy approaches with new drugs to achieve improved outcomes in thoracic malignancies. He has served on various leadership roles within national organizations such as ASTRO, ABR, ARS, and RSS.

Dr. Lee was born and grew up in Taipei Taiwan until the age of 9 and has family throughout the island.