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, MDDr. Albert Chikei Mak, MDDr. Constance Rainer Bowie, MDDr. Nancy Ann Ellerbroek, MD
Radiation OncologyRadiation OncologyRadiation OncologyRadiation Oncology
Accepts New Patients
4.3 
4.8 
37 Years of Experience 37 Years of Experience 38 Years of Experience 44 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 Chinese, English Speaks Chinese, Spanish, English, French Speaks English, Spanish
Pasadena , CAAlhambra , CASan Jose , CAMission Hills , CA
Med School: Keck School Of Medicine Of The University Of Southern California Med School: Chicago Medical School At Rosalind Franklin University-Medicine & Sciences Med School: Mayo Clinic Alix School Of Medicine Med School: David Geffen School Of Medicine At Ucla
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

Is Dr. Ruth Williamson accepting new patients?
Dr. Ruth Williamson has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Ruth Williamson accept my insurance?
You can see the insurance plans that Dr. Ruth Williamson accepts on their Vitals profile.
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.
What languages does Dr. Ruth Williamson speak?
Dr. Ruth Williamson speaks Chinese, Spanish, English, and Vietnamese.

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