Ruth Williamson, Radiation Oncology Dept
Radiation Oncology Physician · MD · Oncologist in Pasadena, CA
Provider details
- Specialty
- Radiation Oncology Physician
- Credentials
- MD
- NPI number
- 1952486912
Checked against the CMS National Provider Identifier registry on October 2, 2026.
Medicare information
- Medical school
- University of Southern California Keck School of Medicine, graduated 1989
- Also sees patients at
- Cedars-Sinai Medical Care Foundation
625 S Fair Oaks Ave, Suite 100, Pasadena, CA 91105 · (424) 314-7695
- Cedars-Sinai Medical Care Foundation
- Hospital affiliations
- Huntington Hospital, Pasadena, CA
- Usc Verdugo Hills Hospital, Glendale, CA · Medicare rating 4 out of 5 stars
- Medicare
- Accepts Medicare assignment (the Medicare-approved amount as full payment)
From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 3, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare
About
Ruth Williamson, Radiation Oncology Dept, MD, is a radiation oncology physician in Pasadena, California, registered with the federal National Provider Identifier (NPI) registry. They attended University of Southern California Keck School of Medicine, graduating in 1989. Contact the provider directly to confirm services, hours and accepted insurance.
Other care in Pasadena
- Emotional Support in Pasadena (320)
- Psychologists in Pasadena (172)
- Psychiatrists in Pasadena (33)
- Wellness and Nutrition in Pasadena (19)
- Medical Imaging and Screening in Pasadena (18)
- Legal Assistance in Pasadena (18)
- Home Health Care in Pasadena (17)
- Holistic Practitioners in Pasadena (10)
- Prosthetics, Wigs & Accessories in Pasadena (8)
- Health Insurance in Pasadena (8)
- Cancer Treatment Centers in Pasadena (7)
- Hospice in Pasadena (6)
- Physical Therapists in Pasadena (1)
- National Organizations in Pasadena (1)
Listings are provided for information only and may be out of date. Know Cancer does not endorse any provider. Please confirm details directly with the provider.