San Luis Obispo Radiation Oncology Center

Dr. Jonathan Stella and Dr. Robert Johnson lead the qualified and compassionate team of cancer care professionals at San Luis Obispo Radiation Oncology Center.

The San Luis Radiation Oncology treatment team offers a full range of advanced treatment options, including Intensity-Modulated Radiation Therapy (IMRT), Image-Guided Radiation Therapy (IGRT), and 3D Radiation Treatment Planning. Dr. Stella is active in Radiation Oncology treatment research and education, leading outreach efforts and cancer prevention initiatives in the San Luis Obispo community.Coastal Map Icon Directions

We are located near Sierra Vista Regional Medical Center in San Luis Obispo, CA.
Address: 100 Casa Street, Suite C.
Phone: (805) 541-1932
Please call if you need help finding us.

 Jonathan Stella, M.D.

Jonathan Stella, M.D.

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After completing an internal medicine internship at the East Tennessee State University College of Medicine, Dr. Stella pursued an oncology residency at the University of Miami, Jackson Hospital and a radiation oncology residency at the West Coast Cancer Foundation in San Francisco. His training included rotations through UCSF, Stanford University, and Lawrence Berkeley Lab, studying the therapeutic applications of stripped atomic nuclei.

Dr. Stella is active in many societies, including the American Medical Association, the California Medical Association, and the American Society of Therapeutic Radiology and Oncology.

Dr. Stella practices at the San Luis Obispo Radiation Oncology Medical Center in San Luis Obispo.

Robert Johnson, M.D.

Robert Johnson, M.D.

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Dr. Johnson graduated from the University of California, Los Angeles with a B.S. in Biology. He obtained his M.D. from the University of Cincinnati College of Medicine. He completed his residency training in Radiation Oncology at the University of Louisville, serving as chef 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. He has significant experience with stereotactic intracranial and body radiosurgery (SRS and SBRT).

Dr. Johnson has presented on contralateral prophylactic mastectomy, colon cancer, radiotherapy in prostate cancer and other topics. Dr. Johnson’s personal experience with cancer taught him the importance of compassion when taking care of cancer patients and led him to pursue a career in Radiation Oncology. 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).

Dr. Johnson, who is proficient in Spanish, practices at San Luis Obispo Radiation Oncology Center in San Luis Obispo.