Summary

Dr. Williamson graduated from the Keck School of Medicine of The University of Southern California in 1989. She works in Pasadena, CA and 3 other locations and specializes in Radiation Oncology. Dr. Williamson is affiliated with Huntington Memorial Hospital.

Quick Facts

  • 4.3
  • 37 years of experience
  • 16 insurance plans accepted
  • speaks Chinese, Spanish, English, Vietnamese
  • Lac Usc Medical Center
  • 2 written reviews
  • 1 specialty
  • 4 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 5 office locations
  • Female

Office Locations

Dr. Ruth Chandler Williamson has 5 locations

Helen And Jim Gamble Radiation Oncology Program

625 S Fair Oaks Ave Ste 100Pasadena, CA 91105
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Huntington Memorial Hospital

100 W California BlvdPasadena, CA 91105

Harbor Ucla Medical Center

1000 W Carson StTorrance, CA 90502

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Dr. Ruth Chandler Williamson, MD
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Dr. Ruth Chandler Williamson, MDDr. Barry Wing Goy, MDDr. Ajmel A Puthawala, MDDr. Harold Michael Klem, MD
Radiation OncologyRadiation OncologyRadiation OncologyRadiation Oncology
Accepts New Patients Accepts New Patients
4.3 
3.4 
37 Years of Experience 34 Years of Experience 56 Years of Experience 57 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Chinese, Spanish, English, Vietnamese Speaks English, Spanish Speaks Spanish, Vietnamese Speaks English, Spanish
Pasadena , CALos Angeles , CALaguna Hills , CALong Beach , CA
Med School: Keck School Of Medicine Of The University Of Southern California Med School: David Geffen School Of Medicine At Ucla Med School: B J Medical College Ahmedabad Med School: University Of California Los Angeles David Geffen School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Ruth Chandler Williamson

  • AARP
  • Aetna
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Health Alliance
  • Health Net - HMO
  • Humana
  • L.A. Care Health Plan
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Dr. Ruth Chandler Williamson has the following specialty

Specialty Expertise

Dr. Ruth Chandler Williamson has the following 4 areas of expertise

  • Breast Cancer
  • Cancer
  • Hodgkin's Lymphoma
  • Radiation Therapy

Certifications, License, & Education

37 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Residency

Lac Usc Medical Center

Medical School

Keck School Of Medicine Of The University Of Southern CaliforniaGraduated in 1989

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Frequently Asked Questions

How can I make an appointment with Dr. Ruth Williamson?
You can find contact information for Dr. Ruth Williamson here on Vitals.
Which hospitals is Dr. Ruth Williamson affiliated with?
Dr. Ruth Williamson is affiliated with Huntington Memorial Hospital.
Where is Dr. Ruth Williamson's office located?
Dr. Ruth Williamson's office is located at 625 S Fair Oaks Ave Ste 100, Pasadena, CA, 91105.
What languages does Dr. Ruth Williamson speak?
Dr. Ruth Williamson speaks Chinese, Spanish, English, and Vietnamese.
Does Dr. Ruth Williamson accept my insurance?
You can see the insurance plans that Dr. Ruth Williamson accepts on their Vitals profile.

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