San Luis Radiation Oncology Center Welcomes New Physician

May 15, 2017

SAN LUIS OBISPO, Calif. - May 15, 2017 - San Luis Radiation Oncology is pleased to announce that Board Certified Radiation Oncologist Robert Johnson, M.D. has joined the practice.

Dr. Johnson is uniquely qualified to treat cancer patients, as he is a cancer survivor himself. During medical school, Dr. Johnson was diagnosed with cancer, and his treatment plan included radiation therapy.

“My personal experience taught me the importance of compassion when taking care of cancer

patients and led me to pursue a career in radiation oncology,” says Dr. Johnson. “I found the specialty to be an ideal combination of patient contact and technical challenge.” 

Dr. Johnson earned his medical degree from the University of Cincinnati College of Medicine.  He completed his residency training in Radiation Oncology at the University of Louisville, serving as chief resident in his final year.

At the University of Louisville, Dr. Johnson gained comprehensive training in general radiation oncology. It was there he developed particular interest in cancers of the head and neck, lung, as well as gastrointestinal malignancies. Dr. Johnson has presented on prophylactic mastectomy for breast cancer, colon cancer, radiotherapy in prostate cancer and other topics. 

“We are pleased to welcome Dr. Johnson to San Luis Obispo,” says Jonathan Stella, M.D., Medical Director and Board Certified Radiation Oncologist at San Luis Radiation Oncology Center. “His personal experience along with his training and knowledge in radiation therapy will be an exceptional contribution to our community and our center, where we have some of the most advanced technology available.”

Dr. Johnson is Board Certified in Radiation Oncology by the American Board of Radiology.  He is a member of the American Society for Therapeutic Radiology and Oncology (ASTRO), and the American Society of Clinical Oncology (ASCO). He is also proficient in Spanish.

San Luis Radiation Oncology Center is located at 100 Casa St., Suite C, San Luis Obispo, CA 93405.

San Luis Radiation Oncology Center is part of Coastal Radiation Oncology, an affiliate of 21st Century Oncology.

For more information about our services, visit or call (805) 541-1932.

About Coastal Radiation Oncology Medical Group:

Coastal Radiation Oncology Medical Group has one of the nations most experienced and committed teams of physicians and clinical staff. Coastal’s radiation oncologists have extensive training from some of the top programs in the nation. Coastal’s cancer care teams, which include physicians, radiation therapists, nurses, medical physicists, and support staff, take pride in upholding rigorous clinical standards while providing comfort, support and detailed cancer treatment information to patients and their families

About 21st Century Oncology

21st Century Oncology is the largest global provider of Integrated Cancer Care services that strongly believes in fighting for patients like an army and caring for them like a family. Operating as one dream team in the crusade against cancer, the company employs or is affiliated with nearly 1,000 physicians globally to deliver the most advanced, integrated, and compassionate cancer care in personal and convenient settings. Headquartered in Fort Myers, FL, 21st Century Oncology operates 165 treatment centers, including 129 centers located in 15 U.S. states. In addition, the company operates 36 centers located in eight countries in Latin America. For more information, please visit


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