Get in touch today 206.598.4100 or

Schedule an Appointment

Simon S. Lo, MB, ChB, FACR


Locations of Practice

SCCA Proton Therapy

1570 N 115th Street
Seattle, WA 98133

Locate on Google Maps


Dr. Lo is a radiation oncologist with expertise in brain tumor, and tumor in the central nervous system (CNS).  He also specializes in Gamma Knife, and Stereotactic Radiosurgery.  He is a Professor and Vice Chair of Strategic Planning at the University of Washington Department of Radiation Oncology.  Dr. Lo practices at UWMC, Harborview, and the Proton Therapy Center.

Patient Care Philosophy

“I believe all patients deserve compassionate and the best medical care.  My aim is to provide the best possible treatment for my patients, and provide education and support to my patients and their families, so they don’t have to face this journey alone.”

Education and Training

Medical Education: Chinese University of Hong Kong, Hong Kong, 1991.

Internship: Prince of Wales Hospital, Hong Kong, 1992

Kwong Wah Hospital, Hong Kong, China, 1993

Queen Elizabeth Hospital, Hong Kong, China, 1997

University of Minnesota Medical Center, MN, 2001

Published Works

Lee A. Wheeler, Andrea G. Manzanera, Susan D. Bell, Robert Cavaliere, John M. McGregor, John C. Grecula, Herbert B. Newton, Simon S. Lo, Behnam Badie, Todd W. Trask, David S. Baskin, Jana Portnow, Pamela Z. New, Laura K. Aguilar, Estuardo Aguilar-Cordova , E. Antonio Chiocca. Phase II Multicenter Study of Gene Mediated Cytotoxic Immunotherapy as Adjuvant to Surgical Resection for Newly Diagnosed Malignant Glioma. Neuro Oncol. 2016 Feb 2. pii: now002.

Jason K. Hsieh, BS, Christopher S. Hong, BA, Sunil Manjila, MD, Mark Cohen, MD, Simon Lo, MD, Lisa Rogers, DO, Andrew Sloan, MD. An IDH1-Mutated Primary Gliosarcoma: A Case Report and Review of the Literature. Journal of Neurosurgery. Accepted for publication.

Stephen Lutz, M.D., Tracy Balboni, M.D., M.P.H., Carol Hahn, M.D., Joshua Jones, M.D., Simon Lo, M.B., Ch.B., Joshua Petit, M.D., Shayna Rich, M.D., Ph.D., Rebecca Wong, M.B., Ch.B. Palliative Radiotherapy for Bone Metastases: Update of an ASTRO Evidence-Based Guideline. Practical Radiation Oncology. Will be accepted for publication.

Jonathan Knisely, Arjun Sahgal, Simon S. Lo, Lijun Ma, Eric L. Chang. SRS/SBRT-Reflection on the Last Decade’s Achievements and Future Directions. Annals of Palliative Medicine. Accepted for publication.


Board Certification

American Board of Radiology, Radiation Oncology, 2001