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Penny K. Sneed


Radiation oncologist
Co-director of the Gamma Knife Radiosurgery Program

Dr. Penny K. Sneed is a radiation oncologist and co-director of the Gamma Knife and CyberKnife Radiosurgery Program. She specializes in treating brain tumors and breast cancer. Her research seeks new treatments for these conditions, specifically using the Gamma Knife, a tool that delivers high doses of radiation to distinct targets.

Sneed has received numerous awards, including fellowship in the American College of Radiology. She earned her medical degree at Stanford University and completed a residency in radiation oncology at UCSF.

  • Education

    Stanford University School of Medicine, 1981

  • Residencies

    UCSF Medical Center, Radiation Oncology, 1986

  • Board Certifications

    Interventional Radiology and Diagnostic Radiology, American Board of Radiology

  • Academic Title


Clinics I work with

Brain Tumor Center

400 Parnassus Ave., Eighth Floor
San Francisco, CA 94143

Radiation Oncology Program

See all three of our San Francisco locations.

My reviews


Overall Experience
41 Ratings
About our process
Nov 24, 2022
Dr. Sneed is one of the best doctor. She is so detailed thorough and professional. She provides guidance and knowledge to all my issues and concerns. I would not have lasted this long without her expertise. She is an excellent doctor.
Nov 15, 2021
Dr. Sneed is a Doctor's Doctor.
Oct 04, 2021
Dr Sneed answered all my questions clearly and patiently. She had a degree of empathy not usually seen in surgeons. I will unequivocally recommend her.
Jul 22, 2021
Well done and grateful for such wonderful care. Thank you!
Jul 14, 2021
Dr Sneed showed extreme respect for me as a patient person and my personal constraints and limitations. She was extremely professional and her staff has also been extremely professional.