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About St. Joseph Health

SJH provides a full range of care facilities including 16 acute care hospitals, home health agencies, hospice care, outpatient services, skilled nursing facilities, community clinics and physician groups. All of our hospital and home health entities are accredited by the Joint Commission. In our award-winning facilities, SJH maintains a "continuum of care," matched to the diverse needs of the urban centers, smaller cities and rural communities who depend on us every day.

Carolyn Barnes, MD

  • Radiation Oncology
    (Board Certified)
Additional Language Spoken
Medical Groups & Affiliations
  • Premier Healthcare
  • St. Mary High Desert Medical Group
Mojave Radiation Oncology Medical Group
18280 Siskiyou Road
Apple Valley, CA 92307
Accepting New Patients

Primary Office

Mojave Radiation Oncology Medical Group
18280 Siskiyou Road
Apple Valley, CA 92307
Get Directions
(760) 242-9999
(760) 242-1121
Mon - Fri 8 a.m. - 12 p.m., & 1 a.m - 5 p.m.

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Radiation Oncology
      (Board Certified)
    Education & Training
    • Medical School
      Loma Linda School of Medicine - 2009
    • Internship
      Loma Linda University Medical Center - 2010
    • Residency
      Loma Linda University Medical Center - 2014
    Areas of Interest
    Radiation Oncology
  • Biography


    Dr. Barnes is an experienced Radiation Oncologist who completed residency at Loma Linda University Medical Center. She has been working with the Mojave Radiation Oncology Group for several years. She has a passion for her community and ensuring her patients obtain the greatest outcomes in their care. She often leads Tumor Boards, she serves on the board of Continuing Medical Education for the San Bernardino Community Medical Center, and is also an Assistant Professor of Clinical Radiology at the California University of Science medicine at Arrowhead Regional Medical Center.

    Dr. Barnes has expertise in many forms of treatment; Intensity Modulated Radiation Therapy (IMRT), Proton beam radiation, Image Guided Radiation Therapy (IGRT), 3D Conformal Technique, Electron Therapy, High Dose Brachytherapy, Low Dose Brachytherapy, and Stereotactic Body Radiotherapy. Dr. Barnes also lead several investigations about using proton therapy with benign brain tumors and rare cancers of the eye. Her work has been presented at national meetings.

    Dr. Barnes is married and has three children. She enjoys hiking, swimming, playing the piano, and spending time with her family.