Wildomar Radiation Oncology

City of Hope | Wildomar Radiation Oncology provides Wildomar and its surrounding communities with incomparable cancer care and radiation treatments close to home. We are trained in the latest advances in radiation oncology and treat patients using multiple leading-edge technologies.

33.5911606, -117.2362833

36450 Inland Valley Drive
Suite 101
Wildomar, CA 92595

All Patients

(951) 696-0679

Monday through Friday: 8 a.m. to 5 p.m.
Closed on major federal holidays

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Clinical Services
Our Physicians
Insurance Information

City of Hope cares for patients from prevention through survivorship by pairing our expertise in numerous cancers and conditions with world-class technologies and services.

Radiation Oncology

City of Hope’s radiation oncology program is one of the largest and most experienced in Southern California. We offer a comprehensive set of specialized services and advanced technologies, planned and provided by our uniquely trained staff, for a broad range of cancer diagnoses.

Our team is trained in the latest advances in radiation oncology and may use one of the following therapies to treat your cancer:

3-D Conformal Radiation Therapy
3-D Ultrasound Imaging
Calypso 4-D Localization System ("GPS for the Body")
CT Scanning and Simulation
Image-guided Radiation Therapy
Image Modulated Radiation Therapy
RapidArc Radiotherapy
Respiratory Gating
Stereotactic Body Radiation Therapy
Stereotactic Radiosurgery

Learn more

At City of Hope, we recognize that each patient and cancer is unique. With this understanding, our expert team will determine the treatment plan that will produce the best outcome for you.

Is My Insurance Accepted?

View a list of insurance companies that City of Hope currently contracts with for its locations and physicians. Even if your plan is included, check with your insurance company to make sure you are covered. Your insurance company/medical group will tell you if you need any authorizations.

If you wish to receive treatment at City of Hope, but we're not currently contracted with your insurance plan, contact your insurance company and ask about obtaining authorization to receive treatment here.

View our pricing and billing

Provider based billing

No Surprise Billing

When you're treated by an out-of-network provider at an in-network facility, you are protected from balance billing. In these cases, you shouldn't be charged more than your plan's copayments, coinsurance and/or deductible. Learn about your rights and protections against surprise medical bills.

Explore City of Hope Wildomar Radiation Oncology

Working closely with community physicians, City of Hope | Wildomar Radiation Oncology acts as a community partner in the radiation therapy care of residents in the Wildomar vicinity.

Exterior of City of Hope Wildemar Building

Our Physicians

James Mason, M.D., M.P.H.

Radiation Oncologist

Wildomar Radiation Oncology

James Mason, M.D., M.P.H., is a highly trained radiation oncologist with City of Hope's Wildomar Radiation Oncology who is well-versed in the latest precision radiation equipment and techniques.

Full Bio

Tara A. Washington, M.D.

Radiation Oncologist

Temecula Radiation Oncology; Wildomar Radiation Oncology

Tara Washington, M.D., is a board-certified radiation oncologist who is well-versed in all radiation treatments, including partial breast irradiation and gamma knife radiosurgery.

Full Bio