Fight Cancer with
Highly Advanced
Radiation Treatment

If you have been diagnosed for the first time, or are facing recurrent cancer, proton therapy may be your best option as one of the world’s safest and most effective treatments.

Proton therapy is a much less invasive alternative, recommended for numerous types of cancers that historically have been treated through traditional approaches such as surgery, chemotherapy and X-ray radiation. Located in San Diego, California Protons Cancer Therapy Center is at the forefront of medical care, research and biotechnology. With more than 50 years of combined proton experience, our world-renowned doctors leverage revolutionary cancer-fighting treatments and tools to treat both common and very rare cancers.

Cutting-Edge
Technology

Precisely delivered within 2 millimeters, our intensity-modulated pencil beam scanning technology, offered in all five treatment rooms, releases a high dose of cancer-killing radiation that conforms precisely to the unique shape and size of the tumor. This highly targeted technology attacks the tumor with laser-like precision, while sparing surrounding healthy tissues and organs.

Renowned
Medical Team

Home to one of the world’s most experienced radiation oncology teams in the proton space, our doctors are internationally recognized and sought out by patients from around the world. In fact, our medical director has personally treated over 9,000 prostate cancer cases—more than anyone in the world.

World-Class
Care

From our doctors to concierge services to support programs, we offer the highest level of personalized patient care. Our entire staff is dedicated to each person’s fight against cancer and every day we strive to create an environment where our patients, their families and friends feel welcomed by a community full of friendly, helpful people who treat everyone as they would their own family members.

Is Proton Therapy
Right for Me?

Proton therapy can be used exclusively, or in combination with surgery and chemotherapy, to treat numerous types of cancers and tumors, including but not limited to:

Proton Therapy vs.
Standard X-Ray Radiation

Standard X-ray radiation and proton therapy are both types of “external beam” radiotherapy. However, the properties of each are very different and result in varying levels of radiation exposure to the tumor site and surrounding tissues and organs.

Proton Therapy vs.
Standard X-Ray Radiation

Standard X-ray radiation and proton therapy are both types of “external beam” radiotherapy. However, the properties of each are very different and result in varying levels of radiation exposure to the tumor site and surrounding tissues and organs.

Questions about insurance and treatment coverage?

Success Stories

Marti Shelton
I wanted to live a long life and didn’t want to risk having a heart attack or heart damage, so I chose proton therapy. After my consultation with Dr. Chang, I just knew that California Protons is where I wanted to be. He spent so much time with me and I felt very confident in his ability.
Marti Shelton
Breast Cancer Patient
Kasey Harvey
Proton therapy was a ‘game changer.’ Not a day goes by that I don’t think how fortunate we were to live six miles away from one of the best proton centers in the world. The entire staff is amazing. Compassionate, knowledgeable and the follow-up was incredible.
Father of Kasey Harvey
Pediatric Rhabdomyosarcoma Patient
Steve Scott
I have experienced absolutely no side effects from my treatments. I coached my men’s and women’s cross-country teams throughout my treatments, without missing a single day. I’ve maintained the intimacy I value so much with my wife, JoAnn, and remain active as a father and mentor in the community.
Steve Scott
Prostate Cancer Patient
Natalie Wright
We chose proton therapy because of its ability to safely penetrate into the brainstem to reach a part of the tumor that couldn’t be touched before. And since the technology at California Protons is the newest and most advanced in the country, we thought ‘why go anywhere else?'
Father of Natalie Wright
Pediatric Brain Tumor Patient