Smith Apisarnthanarax M.D.

Smith Apisarnthanarax M.D.
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  • English
  • Thai


  • Cancer Care (Esophageal)
  • Cancer Care (Liver)
  • Cancer Care (Pancreas)
  • Radiation Oncology


Dr. Apisarnthanarax is a radiation oncologist with expertise in gastrointestinal cancers and genitourinary tumors, including prostate cancer. He also specializes in proton therapy, stereotactic body radiation therapy, and liver cancers. He was on faculty at the University of Pennsylvania prior to joining the University of Washington Department of Radiation Oncology in 2013.

Patient Care Philosophy

Being diagnosed with and treated for cancer is one of the most arduous journeys that any person will experience. Every patient and every cancer is different. As a radiation oncologist, my goal is to guide patients through this difficult time by providing the most compassionate, personalized care possible and making sure they have access to the latest, innovative clinical trials and state-of-the-art technology.

Clinical Interests

Gastrointestinal cancers (esophagus, stomach, pancreas, liver, bile duct, rectum, anus); genitourinary cancers, metastatic cancer, proton therapy.

Research Interests

Dr. Apisarnthanarax is interested in improving patient care by optimizing the way radiation therapy is delivered through novel functional imaging. In particular, his current interest focuses on developing novel ways in imaging the function of the liver so that radiation treatments can be personalized for each patient and be delivered more effectively and safely. He also has interest in radiosensitization and combining radiation with novel biologic agents as radiosensitizers.


Institution Credential Year
Brown University Alpert SOM Medical education 2002
University of Chicago Northshore Internship 2003
UT MD Anderson Cancer Center Fellowship 2005
Univ. of North Carolina Hospitals Residency 2009
Degree Institution Year
MD Brown University Alpert SOM 2002

Board Certifications

Certification Specialty Year
American Board of Radiology Radiation Oncology 2010