Dr. Ruth Williamson, MD

Dr. Ruth Williamson, MD

Radiation Oncology  ·  
Female  ·  
Age 60
Dr. Ruth Williamson, MD is a radiation oncology specialist in Pasadena, CA and has been practicing for 29 years. She graduated from Keck Sch Of Med Of The Usc in 1989 and specializes in radiation oncology.

625 S Fair Oaks Ave Ste 100

Pasadena, CA 91105

Contact Information

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield of California
  • Cigna

*Please verify this information when scheduling an appointment.

Learn about Dr. Williamson

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Top Care Areas

See how frequently Dr. Williamson performs your care needs compared to other doctors.

very high
more than 92% of peers

Dr. Williamson's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

1  Specialties

  • Radiation Oncology

1  Board Certifications

  • Radiation Oncology
    Accredited by: American Board of Radiology*

2  Conditions Treated

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Keck Sch Of Med Of The Usc
    Medical School | Graduated 1989
  • L a Co Usc Med Center
    Residency Hospital | Completed
  • Va Long Beach Hlthcare Sys
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Williamson has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Williamson does not have any memberships or affiliations listed. If you are Dr. Williamson and would like to add memberships or affiliations, please update your profile.

Dr. Williamson's Reviews

Likelihood of recommending Dr. Williamson to family and friends
4 total reviews

Likelihood to Recommend (4)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Williamson's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes
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