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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.

Cindy O. Scharfen, MD

  • Radiation Oncology
    (Board Certified)
Additional Language Spoken
Medical Groups & Affiliations
  • St. Joseph Health Medical Group
  • St. Joseph Health Medical Network
Radiation Oncology - Santa Rosa
3555 Round Barn Circle
Santa Rosa, CA 95403
Accepting New Patients

Primary Office

Radiation Oncology - Santa Rosa
3555 Round Barn Circle
Santa Rosa, CA 95403
Get Directions
(707) 528-1050
(707) 576-0445

Secondary Office

St. Joseph Health Medical Group - Petaluma - Cancer Center
110 Lynch Creek Way
Suite A
Petaluma, CA 94954
(707) 763-0600
(707) 765-1757

More Information

  • Meet The Doctor

    Specialties & Education

    Primary Specialties
    • Radiation Oncology
      (Board Certified)
    Education & Training
    • Medical School
      University of California San Francisco
    • Internship
      Mt. Zion Hospital
    • Residency
      University of California San Francisco
  • Biography


    ***Top Doctors of 2018 Honoree by Sonoma Magazine***
    Dr. Cindy Scharfen graduated from Pomona College with a degree in Chemistry. She received her medical degree from University of California at San Francisco Medical School.

    Dr. Scharfen’s residency was in Radiation Oncology at the University of California at San Francisco. During this time she spent a year in research publishing papers on Glioblastoma Multiforme.She helped set up the San Diego Gamma Knife Center, for treatment of brain tumors.

    She has been active in the Santa Rosa Memorial Hospital Investigational Review Board and clinical trials for many years.
    American Society of Therapeutic Radiology and Oncology California Medical Association Sonoma County Medical Society Northern California Radiation Oncology Society
  • 6-Feb-2020
    Was treated with courtesy & respect -
    excellent care!
    Left feeling I was heard & I understood about the treatment
    All was good & positive.
    *Dr. Scharfen is an exceptionally good physician. I am fortunate to be a patient of hers, and I completely trust her to provide me with the best care possible. She is one of the best medical doctors that I have met here in California.
    10 Total Comments Page 1 2   Next