Kent Wallner, MD

Kent Wallner, MD

Photo of Dr. WallnerDr. Kent Wallner is a radiation oncologist and an expert in brachytherapy—a treatment that involves placing small radioactive seeds throughout the prostate. “It’s a tricky procedure because every patient is different. I’m never relaxed until it’s over, but if it’s done properly, cure rates are at least as good as surgery.” He has been performing brachytherapy procedures for 25 years, and performs about 400 a year.

He earned his medical degree at The Ohio State University. He completed his internship in internal medicine from Cook County Hospital in Chicago and his residency in radiation oncology from the University of California in San Francisco. He worked at Sloan-Kettering Cancer Center for 10 years, and is board certified in radiation oncology.

As a contracted provider at Group Health, Dr. Wallner appreciates using the Group Health electronic medical records. “We’re keeping track of everything that way.”

Dr. Wallner is a co-author of Prostate Brachytherapy Made Complicated and has been called a “legend in the field.” He has four grown children and enjoys scuba diving in Puget Sound, gardening and hiking with his wife and dogs in the mountains.

Board Certification

  • American Board of Radiology, Radiation Oncology


  • MD, Ohio State University, 1981

Advanced Training

  • Internship, Internal Medicine, Cook County Hospital, 1983
  • Residency, Radiation Oncology, University of California, San Francisco 

Honors/Professional Affiliations

  • Phillips Medical Systems/RSNA Seed Grant
  • American Cancer Society Career Development Award
  • Phi Beta Kappa
  • Alpha Omega Alpha
  • American Medical Association 
  • American Society for Therapeutic Radiology and Oncology 
  • American Society of Clinical Oncology 
  • American Brachytherapy Society

Contact information: (206) 326-3000