RW
30 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Williamson, Radiation Oncologist in Pasadena, CA?
Dr. Ruth Williamson, MD is a Radiation Oncologist, who primarily practices in Pasadena, CA. She has been practicing for over 30 years and is board certified. Dr. Williamson graduated from Keck School of Medicine of the University of Southern California and completed her residency at L A Co-Usc Med Ctr, Radiation Oncology; Va Long Beach Hlthcare Sys, Internal Medicine. Dr. Williamson is fluent in English and Spanish, and is currently seeing new patients. Dr. Williamson’s practice accepts Medicaid, Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Williamson’s office at (626) 397-5149.
What are Areas of Expertise for Dr. Williamson?
Dr. Ruth Williamson, MD is a highly-rated, board-certified Radiation Oncologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Williamson empowers patients to confidently navigate their health journey, specializing in Brachytherapy, Breast Cancer, or comprehensive wellness support. Serving the Pasadena/CA community, Dr. Williamson is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Williamson go to medical school and complete their residency?
Residency: L A Co-Usc Med Ctr, Radiation Oncology; Va Long Beach Hlthcare Sys, Internal Medicine | USC/LAC-Keck School of Medicine
Medical School: University of Southern Ca Sch of Med, Los Angeles Ca | Keck School of Medicine of the University of Southern California
Is Dr. Williamson board certified as a Radiation Oncologist?
Yes, Dr. Ruth Williamson, MD is board certified by the American Board of Radiology
What languages does Dr. Williamson speak?
Dr. Williamson and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Williamson treat?
As a Radiation Oncologist, Dr. Williamson diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Williamson. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Lower-Inner Quadrant Left Female Breast Cancer
- Breast Cancer
- Left female breast cancer lower-inner
- Lower-inner left female breast tumor
- Malignant growth in lower-inner left female breast
ICD-10 Codes:
- C50312: Malignant neoplasm of lower-inner quadrant of left female breast
Which procedures does Dr. Williamson perform as a Radiation Oncologist?
As a Radiation Oncologist, procedures performed by Dr. Ruth Williamson may include:
- Abdominal Aortic Aneurysm (AAA) Screening
- Abdominal Imaging
- Abdominal Radiology Consultation
- Angiography
- Arthrography
- Barium Swallow
- Bone Biopsy
- Bone Density Measurement / DXA Scan
For detailed information, please contact Dr. Williamson's office.
Does Dr. Williamson accept my insurance?
Dr. Williamson accepts most major insurance plans. Important: Please call our office at (626) 397-5149 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Williamson accept in Pasadena, CA?
Dr. Williamson in Pasadena, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Commercial
All Other Third Party
City of Los Angeles
Crown Cork and Seal Company
Elevance Health Inc. (formerly Anthem)
HealthSmart
Humana
Medicare
OptumRx
State of Tennessee
View All Insurances
Where is Dr. Williamson's office located?
Dr. Ruth Williamson's Primary Practice
625 S Fair Oaks Ave Ste 100
Pasadena, CA 91105
(626) 397-5149
What is Dr. Williamson's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Williamson's National Provider Identifier (NPI) number is 1952486912.
What common questions do patients ask about Dr. Williamson?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Williamson
What is Dr. Ruth Williamson's specialty?
Dr. Williamson is a Radiation Oncologist near Pasadena, CA. A radiological oncologist specializes in the therapeutic applications of radiant energy and its modifiers. They focus on the study and management of diseases, particularly malignant tumors. Contact Dr. Williamson to book an appointment today.
Is this Dr. Ruth Williamson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Williamson is affiliated with Huntington Hospital (Pasadena, CA) which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Radiation Oncologist?
Explore Radiation Oncologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Ruth Williamson accepting new patients in Pasadena, CA?
Yes, Dr. Ruth Williamson is accepting new patients at this time.
Does Dr. Ruth Williamson offer online booking?
Please contact Dr. Williamson's office at (626) 397-5149 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ruth Williamson?
Please contact Dr. Williamson's office at (626) 397-5149 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Ruth Williamson have?
Dr. Ruth Williamson is certified by the American Board of Radiology.
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