Dr William Garrett Holder Jr, MD - Medicare Emergency Medicine in South San Francisco, CA

Dr William Garrett Holder Jr, MD is a medicare enrolled "Emergency Medicine" physician in South San Francisco, California. He went to University Of South Carolina School Of Medicine and graduated in 2015 and has 9 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 1200 El Camino Real, South San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (650) 742-2000.

Dr William Garrett Holder Jr is licensed to practice in California (license number C183944) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1205216728.

Contact Information

Dr William Garrett Holder Jr, MD
1200 El Camino Real,
South San Francisco, CA 94080-3208
(650) 742-2000
Not Available

Map and Direction




Physician's Profile

Full NameDr William Garrett Holder Jr
GenderMale
SpecialityEmergency Medicine
Experience9 Years
Location1200 El Camino Real, South San Francisco, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William Garrett Holder Jr attended and graduated from University Of South Carolina School Of Medicine in 2015
  NPI Data:
  • NPI Number: 1205216728
  • Provider Enumeration Date: 06/01/2015
  • Last Update Date: 09/12/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8527495027
  • Enrollment ID: I20230330001029

Medical Identifiers

Medical identifiers for Dr William Garrett Holder Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205216728NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD-20152 (Hawaii)Secondary
208D00000XGeneral Practice 0101261753 (Virginia)Secondary
207P00000XEmergency Medicine C183944 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hospital - South San FranciscoSouth san francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102257800

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. Dr William Garrett Holder Jr allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710
Entity NameNes Western Group A Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487125019
PECOS PAC ID: 4587902952
Enrollment ID: O20190208002821

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. Dr William Garrett Holder Jr 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 AddressPractice Location Address
Dr William Garrett Holder Jr, MD
1200 El Camino Real,
South San Francisco, CA 94080-3208

Ph: (650) 742-2000
Dr William Garrett Holder Jr, MD
1200 El Camino Real,
South San Francisco, CA 94080-3208

Ph: (650) 742-2000

Reviews and Comments


Emergency Medicine Doctors in South San Francisco, CA

Edward J. Baddour, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    
Richard A. Stagliano, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    
Edward Leiken, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    
Jason D. Eiband, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    
Robert Andrew Zimmerman, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    
Dr. Alice Kwan, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 El Camino Real, South San Francisco, CA 94080
Phone: 650-742-2000    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.