Wui-Jin Koh, MD, is the Senior Vice President/Chief Medical Officer at the National Comprehensive Cancer Network (NCCN). In this role, Dr. Koh helps oversee the flagship NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) program. In addition, he is responsible for medical leadership and oversight for NCCN’s continuing medical education program, and represents the organization at clinical and scientific meetings. Prior to his role at NCCN, he served as Professor of Radiation Oncology at University of Washington and Medical Director for Radiation Oncology at Fred Hutchinson Cancer Research Center/Seattle Cancer Care Alliance. Dr. Koh earned his medical degree at Loma Linda University School of Medicine. He conducted his post-graduate training at the University of Washington Medical Center, completing a residency and internship in radiation oncology and a clinical fellowship in tumor imaging. He is board-certified in radiation oncology.