Mary Feng

Mary Feng, MD is a Professor in the Department of Radiation Oncology at the University of California, San Francisco (UCSF) School of Medicine. She serves as Vice-Chair for Clinical Research in the Department of Radiation Oncology and as the Medical Director of the Clinical Research Network Office in the Helen Diller Family Comprehensive Cancer Center. Dr. Feng has also held leadership positions including Clinical site director for the Mission Bay Clinic and Director of Quality Assurance and Safety for the Department of Radiation Oncology at UCSF.

Dr. Feng received her BS in Biological Sciences from Stanford University in 1997, her MD from Washington University School of Medicine in Saint Louis in 2002, and completed her Radiation Oncology training at the University of Michigan, Ann Arbor in 2007.

Dr. Feng specializes in treating patients with gastrointestinal and hepatobiliary cancers. Her research program focuses on using advanced biology and technical innovations to personalize and adapt radiation treatments for each patient to maximize effectiveness while minimizing side effects. She has three primary research goals: improving the lives of cancer patients through new combination treatments, adapting radiation treatments based on early changes in blood and imaging tests, and testing advanced technologies in radiotherapy. Her work bridges clinical practice with translational research, with particular emphasis on liver tumors, pancreatic cancer, and anal cancer.

Dr. Feng's publication record demonstrates a strong focus on radiation oncology with particular emphasis on gastrointestinal cancers, advanced imaging techniques for treatment planning, and personalized radiation therapy approaches. Her research spans technical innovations in radiation delivery, clinical outcomes analysis, and health services research related to cancer care. Over time, her work has increasingly incorporated advanced imaging, artificial intelligence, and big data approaches to optimize radiation therapy for abdominal cancers.

• Howard Hughes Medical Institute Summer Research Fellowship (1996)
• American Red Cross Volunteer of the Year (1998)
• Educator of the Year from the Association of Residents in Radiation Oncology (2020)

Dr. Feng has served on numerous national and international cancer organization panels including the National Comprehensive Cancer Network Pancreatic Adenocarcinoma Panel, the American Society of Clinical Oncology Gastrointestinal Cancer Guideline Advisory Group, and the American Society for Radiation Oncology IHE-RO Clinical Advisory Subcommittee as co-chair. Her leadership extends to clinical trial development and implementation through her role in bringing clinical trials to patients at UCSF affiliates.

As Medical Director of the Clinical Research Network Office in the Helen Diller Family Comprehensive Cancer Center, Dr. Feng oversees research infrastructure that enables clinical trials at UCSF affiliate sites, expanding access to cutting-edge cancer treatments for patients across the region.