Willett is professor and chair of the Department of Radiation Oncology. He has advanced the field by improving the care of patients with gastrointestinal cancers, through his innovative research, and by training a generation of radiation oncologists. The Department continues to grow and thrive across all missions. In 2016 he received the American Society for Radiation Oncology (ASTRO) Gold Medal Award, the highest honor given to select members of the world’s largest radiation oncology society. At the beginning of his career, during a residency at Massachusetts General Hospital, Willett wrote a series of seminal articles on radiation therapy for colon cancer. He continued his engagement in impactful scholarly activities, including authoring more than 400 scientific papers and reviews. He has been involved in developing clinical protocols for both gastrointestinal cancer and intraoperative radiation therapy, two areas in which he is recognized as an international expert. In addition, Willett has demonstrated tremendous commitment to teaching, training, and mentoring. In 2002, he received the Teacher of the Year Award from the Association of Residents in Radiation Oncology. In 2005, he received the Radiation Oncology Teaching Award at Duke. He has had a lasting impact on the careers of many trainees and faculty members.