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 supportive learning environment that prioritizes trainee well-being and professional growth, in keeping 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 our curriculum, faculty, and application requirements.
-
Program Aims
The OHSU Radiation Oncology Residency Program aims to provide residents with a strong clinical foundation, hands-on learning, and opportunities to explore the many areas of radiation oncology. We combine clinical training with teaching, research, mentorship, and professional development to help residents grow into confident and well-rounded radiation oncologists. Residents learn through supervised clinical experiences, lectures, conferences, and research, with increasing responsibility as their skills and confidence grow. Our goal is to create a supportive and welcoming environment where residents are excited to learn, work together, and build a career in radiation oncology.
- Develop skilled and confident physicians who provide thoughtful, patient-centered care and take on increasing responsibility as they progress through residency.
- Build a strong foundation in radiation oncology through clinical training across the full range of disease sites and treatment approaches.
- Create a culture of safety and continuous improvement where residents and faculty work together to improve patient care.
- Support curiosity and lifelong learning through lectures, conferences, mentorship, and exposure to new advances in radiation oncology.
- Provide opportunities for research and professional growth based on each resident’s interests and career goals.
- Prioritize resident well-being and create an environment where residents feel supported, valued, and able to thrive.
-
Program Leadership
Nima Nabavizadeh, M.D.
Dr. Nima Nabavizadeh is the Program Director of the Radiation Oncology Residency Program. He received his medical degree from the University of Oklahoma College of Medicine, where he was inducted into the Alpha Omega Alpha Honor Medical Society, and completed his residency at OHSU. He also holds a degree in Mechanical Engineering from the University of Oklahoma. In addition to his clinical work, Dr. Nabavizadeh serves as Chief Medical Officer at the Cancer Early Detection Advanced Research Center (CEDAR), where he helps lead efforts to improve early cancer detection and outcomes.
Casey Williamson, M.D., M.A.S.
Dr. Casey Williamson is the Associate Program Director of the Radiation Oncology Residency Program and Medical Director of the Radiation Therapy Program. He earned both his medical degree and a master’s degree in clinical research from the University of California San Diego, where he also completed his residency training in radiation oncology. Dr. Williamson’s clinical interests focus on the treatment of gynecologic and genitourinary cancers, with specialized expertise in external beam radiation therapy and brachytherapy.
Carl Post, M.D.
Dr. Post is the Medical Student Clerkship Director and faculty advisor for the Radiation Medicine Student Interest Group. He received his medical degree from University of Nebraska Medical Center and completed his residency training at OHSU's Radiation Oncology Residency Program. Dr. Post's clinical interests include thoracic malignancies and sarcoma.
Program Faculty
Our radiation oncologists provide comprehensive care across a broad range of disease sites at our clinics in Kohler Pavilion, the Portland VA, and Beaverton. Learn more about our program faculty.