Smith Apisarnthanarax M.D.

Smith Apisarnthanarax M.D.

Specialties and Expertise

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


Digestive Health, Liver Care and Transplantation Services, Radiation Oncology




Liver Tumor Clinic at UWMC

1959 NE Pacific St., 3rd Floor
Seattle, WA 98195
Phone: 206.598.4477|Map It 

Radiation Oncology Services at UWMC

1959 NE Pacific St., 1st Floor, NN 106
Seattle, WA 98195
Phone: 206.598.4100|Map It 


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.

Personal Interests

Spending time with family, movies, exploring new foods and restaurants, basketball, tennis, hiking.

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.


Brown University Alpert SOMMedical education2002
Univ. of North Carolina HospitalsResidencyRadiation Oncology
University of Chicago NorthshoreInternshipInternal Medicine
UT MD Anderson Cancer CenterFellowshipRadiation Oncology


Board Certifications

American Board of RadiologyRadiation Oncology2010
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