Meet Dr. Nathan Kim
Assistant Professor of Radiation Oncology


Nathan Kim, M.D., Ph.D., did not start his educational career headed toward being a radiation oncologist. But his personal experience with family members and cancer while he was in medical school led him to develop a strong interest in the disease and, now, as Assistant Professor of Radiation Oncology at UT Southwestern Medical Center, has helped shape his patient care philosophy.

“Having family members who have gone through cancer treatment and benefited from it reminds me to treat my patients the way I would want my family members treated,” Dr. Kim says. “That includes respect and compassion, but also looking for every realistically possible option that’s out there for them.”

I don’t just believe in short-term care but really developing a relationship with patients for long-term care so it doesn’t end when their treatment ends. I really try to follow up with them and be a part of their survivorship process as well.”

Dr. Kim is a radiation oncologist specializing in genitourinary (GU) malignancies including prostate, bladder, testicular, penile, and kidney cancers. He also treats some lymphoma patients.

Some early funding for prostate cancer research helped Dr. Kim determine GU cancers as his area of expertise. He sees a high volume of prostate cancer patients compared to the other GU cancers because prostate cancer is more prevalent. Dr. Kim says we have made great strides in treating prostate cancer over the past decade, but there are still areas where we need to improve.

“We need to determine methods to improve outcomes of patients with high-risk locally advanced prostate cancer,” Dr. Kim says. “That’s an important area of research for us, as well as survivorship and a look at molecular markers or biomarkers that can help predict which patients will do better than others and how that might help us determine their treatment.”

State-of-the-art radiation therapy equipment sets UT Southwestern apart from other treatment facilities, says Dr. Kim. And for prostate cancer patients in particular, the two TrueBeam machines we have are among the best available in linear accelerator technologies.

Clinical Interests

  • Radiation therapy
  • Genitourinary (GU) cancers
    • Prostate cancer
      • High-risk prostate cancer
      • Low-risk prostate cancer
    • Bladder cancer
    • Testicular cancer
    • Penile cancer
    • Kidney cancer
  • Lymphoma