Meet Our Residents

RadOnc Residents 2021-2022

Current residents

Aasheesh Kanwar, M.D.

Aasheesh Kanwar, M.D.

Dr. Kanwar is a PGY-4 resident in the Department of Radiation Medicine. He received a medical degree from Texas Tech University Science Center of Medicine and completed his internship year in internal medicine at St. Mary’s Medical Center. 

His research focuses on the application of clinical and imaging informatics (radiomics) to improve prediction of treatment response and radiation toxicities.

Christopher Deig, M.D.

Chris Deig, MD

Dr. Deig is a PGY-4 resident in the Department of Radiation Medicine. He received a medical degree from Indiana University and completed his internship year at the Colorado Health Foundation.

He is interested in exploring the role of cell free DNA as a biomarker to detect and monitor malignancies and refining our understanding of SBRT as a tool to treat early stage non-small cell lung cancer and hepatocellular carcinoma.

Carl Post, M.D.

Carl Post MD

Dr. Post is a PGY-3 resident in the Department of Radiation Medicine. He received a medical degree from University of Nebraska College of Medicine and a bachelor’s degree in biochemistry from University of Nebraska-Lincoln.  He completed his internship year at Presence Saint Francis Hospital.

Hans Kim, M.D.

Hans Kim MD

Dr. Kim is a PGY-3 resident in the Department of Radiation Medicine. He received a medical degree from State University of New York Upstate Medical University, a bachelor’s degree in chemistry from University of Pennsylvania, and a degree in biology and chemistry from Ajou University in South Korea. He completed his internship year with OHSU's surgery department.

He is interested in conducting metabolomic research studies (the study of the metabolome, coined as an analogy with the genome, proteome, etc.), in vitro and in vivo, using various types of cell cultures and perfused organs in the context of radiation induced oxidative stress. 

Mohammad Hissourou III, M.D.

Mo Hissourou III, MD

Dr. Hissourou is a PGY-3 resident in the Department of Radiation Medicine. He received his medical degree from Icahn School of Medicine at Mount Sinai. In addition to her medical degree, Dr. Hissourou holds an undergraduate from Columbia College-Columbia University in biology and an undergraduate - SUNY Stony Brook University in biology. He completed his internship year at Northwell Health.

Dr. Hissourou spent one year working at a contract research organization helping to conduct research in pharmocogenetics and vascular devices. 

Jehan Yahya, M.D.

Jehan Yahya, M.D.

Dr. Yahya is a PGY-2 resident in the Department of Radiation Medicine. She received her medical degree from Oregon Health and Science University and completed her internship year  at Henry Ford Hospital in Detroit, Michigan. In addition to her medical degree, Dr. Yahya has a bachelor’s degree in biology and Hispanic studies, as well as a minor in chemistry from Lewis and Clark College in Portland.

She is fluent in American Sign Language, Arabic, English and Spanish, and knows some Italian and Portuguese.

Kim Ohaegbulam, M.D., Ph.D.

Kim Ohaegbulam MD PhD

Dr. Ohaegbulam is a PGY-2 resident in the Department of Radiation Medicine. He received his medical degree (M.D./Ph.D.) from Albert Einstein College of Medicine and completed his internship year in medicine at Hofstra/Northwell in Forest Hills, New York. In addition to his medical degree, Dr. Ohaegbulam has a bachelor’s degree in biomedical science from the University of South Florida and a master’s degree in biomedical science from the Albert Einstein College of Medicine.

Dr. Ohaegbulam completed a two month Global Health Fellowship for Medical Spanish and Clinical Medicine in San Jose, Costa Rica in spring 2019. 

Cymon Kersch, M.D., Ph.D.

Cymon Kersch_RadOnc

Dr. Kersch is an incoming resident to the Department of Radiation Medicine. She received her medical degree (M.D./Ph.D.) from Oregon Health & Science University School of Medicine. In addition to her medical degree, Dr. Kersch holds a graduate degree from Texas A&M University in entomology and an undergraduate from the University of Puget Sound in molecular and cellular biology. For her internship year, Dr. Kersch will be training at Providence Health in Portland, Oregon. 

Jason Burton, M.D., Ph.D.

Jason Burton

Dr. Burton is an incoming resident to the Department of Radiation Medicine. He received his medical degree from University of Texas Rio Grande Valley School of Medicine. In addition to his medical degree, Dr. Burton holds a doctorate from Baylor College of Medicine in integrative molecular and biomedical sciences and an undergraduate degree from Brigham Young University in biophysics. For his internship year, Dr. Burton will be training at Dartmouth-Hitchcock Medical Center in Lebanon, New Hampshire. 

Resident research

Our program has a broad and flexible research focus that includes health services and outcomes-based research, clinical and translational research, as well as basic science research opportunities within OHSU community. Our goal is to provide an opportunity to garner a meaningful research experience during the critical years of residency training.  Learn more about what our current residents are investigating.

Resident Alumni Society

After completing their training with OHSU's Radiation Oncology Residency Program, our graduates move on to be become leaders in the radiation oncology field. Learn where OHSU's graduates are practicing