There is currently one verified low-dose radiation therapy (LDRT) center in Washington, located in Seattle. The facility information below is confirmed at the time of listing. Always call ahead to confirm availability and scheduling.
If the Seattle location does not work for you, these are the closest verified LDRT centers in other states:
William Valley Cancer Institute and Research Center- Eugene — 520 Country Club Road, Eugene, Oregon 97401 — 5416835001 (~248 miles; Oregon provider page)
This is the only verified LDRT provider currently listed in Washington. Before making the trip, confirm a few things:
Which joints does this clinic treat? Not every program treats every joint. Confirm your specific joint before scheduling.
Is a physician referral required? Some programs require a referring physician to initiate the process. Ask whether you need a referral from your primary care doctor or specialist first.
Has your clinic billed insurance for LDRT for osteoarthritis before? Practices with prior billing experience navigate the prior authorization process more smoothly than those treating it for the first time.
For a full guide on coverage, billing codes, and what "investigational" classification means for your specific plan, see our Cost & Coverage page. Additional providers may be within driving distance in neighboring states — see the links below.
Medically reviewed by:Robert Warren Floyd, M.D., Ph.D. — Resident Physician, Radiation Oncology, The University of Texas MD Anderson Cancer Center. Last reviewed: August 2, 2026. Independent personal project — not affiliated with or endorsed by MD Anderson Cancer Center. Funding & independence disclosure.