Radiation Oncology Residency Program
Welcome to the OHSU Radiation Oncology Residency Program! We are pleased to introduce you to our Program Director, Dr. Nima Nabavizadeh, who will provide you with valuable insights into our residency and what makes our program unique.
The Radiation Oncology Residency Program is a four-year ACGME-accredited program designed to develop skilled radiation oncologists ready for careers in clinical practice, education, research, and advocacy. We offer a diverse, inclusive, and supportive learning environment that prioritizes trainee well-being and professional growth, aligning with the University's mission of healing, teaching, and discovery.
Our training combines clinical experience, lectures, multidisciplinary learning, and research to build both clinical and scientific expertise. Throughout the program, trainees progressively assume more responsibility as they rotate through various segments over the four years. Learn more about our residency program, including about our curriculum, faculty, and application requirements.
The Radiation Oncology Residency Program aims to offer residents a robust, progressive clinical experience in radiation oncology, complemented by essential basic science and research support. The program will achieve this by providing a blend of supervised clinical experiences, seminars, lectures, and research assignments, all carefully designed to enhance the resident's clinical skills and establish a strong scientific foundation for their growth. The objectives of the Radiation Oncology Residency Program include:
- Train physicians to think critically and independently for the practice of patient-centered radiation oncology with graduated responsibility as residents demonstrate competence.
- Promote a culture of safety and continuous system-based improvement.
- Provide an advanced educational experience in all radiation oncology subspecialties.
- Provide opportunities for research and/or professional development during residency.
- Develop well-adjusted residents through the promotion of resident well-being and happiness.
- Promote diversity and inclusiveness in the workforce.
Program Leadership
Nima Nabavizadeh, M.D.
Dr. Nabavizadeh, associate professor of Radiation Medicine, currently holds the position of program director for the medical residency program. He earned his medical degree from the University of Oklahoma College of Medicine and completed his residency at OHSU. Dr. Nabavizadeh's accomplishments include induction into the Alpha Omega Alpha honors society for medical academic excellence. He also possesses a degree in Mechanical Engineering from the University of Oklahoma.
Program Faculty
Aaron Grossberg, M.D., Ph.D.
Dr. Grossberg, an assistant professor of radiation medicine, also serves as the co-director of the program's radiation biology curriculum. He earned his medical and doctorate degrees from OHSU and completed his residency training at the University of Texas - MD Anderson Cancer Center. Dr. Grossberg focuses his practice on cancers of the pancreas and breast.
Arthur Hung, M.D.
Dr. Hung, an associate professor and interim chair of the Department of Radiation Medicine, received his medical degree from The Ohio State University and completed his residency at the University of Texas – MD Anderson Cancer Center. His practice centers on cancers of the genitourinary tract, gastrointestinal tract, hepatobiliary system, soft tissue sarcomas, and melanomas. He also serves as the medical director of the Radiation Therapy Training Program.
Carl Post, M.D.
Dr. Post, an assistant professor of radiation medicine, received his medical degree from University of Nebraska Medical Center and completed his r residency training at OHSU's Radiation Oncology Residency Program. His clinical interests center on thoracic malignancies and sarcoma.
Casey Williamson, M.D., M.A.S.
Dr. Williamson, an assistant professor of Radiation Medicine and faculty advisor for the Radiation Medicine Student Interest Group, received his medical degree and a master's degree in clinical research from University of California San Diego and completed his residency training at the UC San Diego Radiation Oncology Residency Program. His clinical interests center on the treatment of gynecologic and genitourinary cancers with expertise in both external beam radiation therapy and brachytherapy.
Joshua Walker, M.D., Ph.D.
Dr. Walker, an assistant professor of radiation medicine, co-directs the program's radiation biology curriculum. He earned both his medical and doctorate degrees at Oregon Health and Science University School of Medicine and completed his residency at OHSU as well. Dr. Walker's clinical interests primarily revolve around tumor immunotherapy and radiotherapy of solid tumors.
Reid F. Thompson, M.D., Ph.D.
Dr. Thompson, an assistant professor of radiation medicine, is also a member of the Knight Cancer Institute's Computational Biology Program. He obtained his medical and doctorate degrees from the Albert Einstein College of Medicine and completed his residency at the University of Pennsylvania. Dr. Thompson also holds degrees in genetics and biophysical chemistry. His clinical focus includes the treatment of melanoma and other skin cancers using radiotherapy, often in combination with other agents such as immunotherapy.
Sophia Bornstein, M.D., Ph.D.
Dr. Bornstein, a clinical associate of radiation medicine, earned her medical and doctorate degrees from Oregon Health and Science University School of Medicine and completed her residency at OHSU's Radiation Oncology Residency Program. Her clinical focus includes the treatment of breast cancers.
Timur Mitin, M.D., Ph.D.
Dr. Mitin, a professor of radiation medicine, received his medical and doctorate degrees from Tufts University and completed his residency training at the Harvard Radiation Oncology Program. His clinical interests center on the treatment of genitourinary malignancies, with a special focus on bladder preservation therapy for patients with muscle-invasive bladder cancer.