Radiation Oncology Center

The Washington Radiation Oncology Center (ROC) opened in July 1984 providing radiation therapy services to the Tri-City Area. The mission of the Washington Radiation Oncology Center is to provide high quality, cost effective radiation oncology services to all patients. The Center maintains a caring and compassionate atmosphere, utilizing state-of-the art technology and keeping abreast of the latest developments.

The ROC offers patients access to leading edge treatment planning and treatment delivery systems offering the latest advances in radiation therapy. Technical resources include:

  • Varian 21EX linear accelerator delivering dual energy photon and electron therapy. The accelerator is equipped with a 120 leaf multileaf collimator with the capability of 3-D conformal radiation therapy, intensity modulated radiation therapy (IMRT) and image guided radiation therapy (IGRT).

    Click here to learn more about IGRT.

  • GE Lightspeed Plus CT
  • Philips Pinnacle Treatment Planning System

These resources allow the ROC to develop treatment plans based on 3-dimensional images of the tumor and surrounding tissue. A dose of radiation can then be prescribed and delivered with multidirectional beams that not only improve the accuracy and effectiveness of the treatment but also limit the dose and minimize injury to the surrounding tissues.

Recent Washington Radiation Oncology Center News

Experienced Staff

Our multi-disciplinary team of healthcare professionals are highly committed to maintaining a quality, state-of-the-art cancer treatment facility. Our experienced staff at the Center includes a board certified radiation oncologist, three licensed radiation therapists, a medical physicist, a licensed dosimitrist, licensed nurse navigator (RN) and a manager.

Washington Radiation Oncology Center Leadership

The Washington Radiation Oncology Center is led by medical director, radiation oncologist Dr. Michael Bastasch.

Dr. Bastasch completed his residency in radiation oncology at the Baylor College of Medicine in Houston, Texas. Dr. Bastasch attended medical school and completed his internship at the University of Kansas School of Medicine in Kansas City, Kansas. He is board certfied in radiation oncology and has been in practice at the Washington Radiation Oncology Center since 2006. Dr. Bastasch holds memberships with the American Society for Therapeutic Radiology and Oncology, Alameda County Medical Society and the Children's Oncology Group.


Washington Radiation Oncology Center (ROC)
39101 Civic Center Drive
Fremont, CA 94538
Telephone: (510) 796-7212
Hours: M-F, 8:30 a.m. - 4:30 p.m

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