Fight Cancer With Unmatched Precision

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I'M READY TO FIGHT BACK
WITH PROTON THERAPY

Fight cancer, millimeter by millimeter, and protect yourself with one of the safest and most effective radiation treatments in the world. Located in San Diego, our center has the power, technology and expertise to deliver proton therapy with unmatched precision. Precision proven to spare healthy tissues, lower the risk of secondary cancer, reduce side effects and result in strong cure rates.

Protect Yourself, Spare Your Tissues & Silence Future Threats

Compared to standard X-ray radiation and other treatments, California Protons offers patients:


Unmatched Precision

Proton beams can be manipulated to conform to the unique size and shape of the tumor and stop at its edge precisely.

Radiation Dose Variation

Doctors can vary the intensity of the radiation dose at any point within the tumor to optimize treatment.

Treatment for More Tumor Types

Patients with tumors that are larger, more irregularly shaped or found near critical organs or structures can be treated.

Lower Incidence of Secondary Tumors

Reduced radiation to healthy tissues lowers the risk of secondary cancer.

Reduced Side Effects

Diarrhea, nausea, headache and loss of appetite are less likely.

Faster Treatment Times

Our treatment plans can be loaded into the computer and completed in a matter of minutes.

A Winning Team Committed to Your Fight

A Winning Team Committed to Your Fight

California Protons is home to one of the world’s most experienced radiation oncology teams in the proton space. With 50-plus years of combined experience, our doctors are committed to delivering an unparalleled level of clinical care. In fact, they’ve treated more than 14,000 patients with proton therapy.

Is Proton Therapy Right for You?

A highly accurate and much less invasive form of cancer treatment, proton therapy is recommended for numerous types of both common and rare cancers and tumors.

We treat more than 25 types of cancer, including but not limited to:

  • Breast Cancer
  • Pediatric Cancers
  • Lung Cancer
  • Testicular Cancer
  • Prostate Cancer
  • Brain & Spine Tumors
  • Head & Neck Cancers
  • Lymphoma
  • Gastrointestinal

Attend a Free Informational Seminar and Tour

Interested in learning more about proton therapy and seeing first-hand if it might be right for you? Our doors are open. Join us at the center for an informational session by one of our physicians and a guided tour by one of our physicists. For questions or reservations, please call 858.283.4771, Monday–Friday, 8am–5pm PT.

Thursday, May 9th

11:30am–12:15pm Information Session
12:15pm–1:00pm Center Tour

Wednesday, May 29th

6:00pm–6:45pm Information Session
6:45pm–7:30pm Center Tour


Registrations are required. Please arrive 10 minutes early as the sessions will begin promptly. Sorry, no one under the age of 18, pregnant women or pacemakers allowed on the tour for safety purposes.

Fight for a Better Tomorrow
858.283.4771