Ruth Williamson, MD in Pasadena, CA - Medicare Radiation Oncology

Ruth Williamson, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Pasadena, California. She went to University Of Southern California Keck School Of Medicine and graduated in 1989 and has 37 years of diverse experience with area of expertise as Radiation Oncology. She is a member of the group practice Cedars-sinai Medical Care Foundation and her current practice location is 625 S Fair Oaks Ave Ste 100, Pasadena, California. You can reach out to her office (for appointments etc.) via phone at (626) 397-5149.

Ruth Williamson is licensed to practice in California (license number G707B5C) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1952486912.

Contact Information

	Ruth Williamson, MD
	625 S Fair Oaks Ave Ste 100, Pasadena, CA 91105-2640
	(626) 397-5149
	(310) 397-2147

Map and Direction

Physician's Profile

Full Name	Ruth Williamson
Gender	Female
Speciality	Radiation Oncology
Experience	37 Years
Location	625 S Fair Oaks Ave Ste 100, Pasadena, California
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Ruth Williamson attended and graduated from University Of Southern California Keck School Of Medicine in 1989

NPI Data:

NPI Number: 1952486912
Provider Enumeration Date: 10/26/2006
Last Update Date: 10/13/2022

Medicare PECOS Information:

PECOS PAC ID: 7113057019
Enrollment ID: I20100618000425

Medical Identifiers

Medical identifiers for Ruth Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1952486912	NPI	-	NPPES
GR0087110	Medicaid	CA

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2085R0001X	Radiology - Radiation Oncology	G707B5C (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Huntington Memorial Hospital	Pasadena, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Cedars-sinai Medical Care Foundation	0941106645	1451

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Ruth Williamson allows following entities to bill medicare on her behalf.

Entity Name	Cedars-sinai Medical Care Foundation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1316984388 PECOS PAC ID: 0941106645 Enrollment ID: O20040202000464

Entity Name	City Of Hope Medical Foundation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1871886366 PECOS PAC ID: 3779751656 Enrollment ID: O20110720000244

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Ruth Williamson is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Ruth Williamson, MD 4140 W 190th St, Torrance, CA 90504-5513 Ph: () -	Ruth Williamson, MD 625 S Fair Oaks Ave Ste 100, Pasadena, CA 91105-2640 Ph: (626) 397-5149

Reviews and Comments

Radiology Doctors in Pasadena, CA

Dr. Richard A. Reed, MEDICAL DOCTOR Radiology Medicare: Medicare Enrolled Practice Location: 100 W California Blvd, Pasadena, CA 91105 Phone: 626-397-5139 Fax: 626-447-1058
Dr. Luis Balmore Gutierrez, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 100 W California Blvd, Pasadena, CA 91105 Phone: 626-397-5139 Fax: 626-397-2190
Dr. John B Holden, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 100 W California Blvd, Pasadena, CA 91105 Phone: 626-397-2139
Dr. Ramona Kyaw, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 625 S Fair Oaks Ave Ste 100, Pasadena, CA 91105 Phone: 626-397-5149
Dr. Warren Wai Lam, MEDICAL DOCTOR Radiology Medicare: Accepting Medicare Assignments Practice Location: 100 W California Blvd, Pasadena, CA 91105 Phone: 626-397-5139 Fax: 626-447-1058
Dr. Pia Lindstrom Luedtke, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 100 W California Blvd, Huntington Memorial Hospital, Pasadena, CA 91105 Phone: 626-397-5139
Saadia Riaz Chaudhary, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 100 W California Blvd, Pasadena, CA 91105 Phone: 626-397-5139 Fax: 626-397-2190

Ruth Williamson, MD - Medicare Radiation Oncology in Pasadena, CA