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Dr. Diane Tsai

Dr. Diane Tsai completed her undergraduate degree at Johns Hopkins University, Baltimore, MD. She returned to her home state of New Jersey to earn her medical degree at University of Medicine and Dentistry of New Jersey, UMDNJ. She completed an internship year in Primary Care Internal Medicine at Yale, before her specialty training in Radiation Oncology at Johns Hopkins Hospital. Dr. Tsai is board certified by the American Board of Radiology. She has served on the faculty at Georgetown University Medical Center and now enjoys community practice at Tacoma/Valley Radiation Oncology Centers.

Dr. Tsai is versed in all aspects of radiation oncology and has strong interests in breast, prostate, GI, and central nervous system malignancies. She is passionate about using her clinical and technical skills to deliver quality, compassionate patient-centered care. In her free time, Dr. Tsai enjoys gourmet cooking, interior design, music, and time outdoors appreciating the natural beauty of the PNW.


Phone: (564) 240-3100

Primary Clinic:

Radiation Oncology at St Michael Medical Center
1900 Myhre Rd
Silverdale, WA 98383