Warren David King, MD - Medicare Orthopaedic Surgery in San Mateo, CA

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Warren David King, MD is a medicare enrolled "Orthopaedic Surgery - Sports Medicine" physician in San Mateo, California. His current practice location is 100 S Ellsworth Ave Ste 504, San Mateo, California. You can reach out to his office (for appointments etc.) via phone at (650) 380-5695.

Warren David King is licensed to practice in California (license number G53371) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1154485753.

Contact Information

Warren David King, MD
100 S Ellsworth Ave Ste 504,
San Mateo, CA 94401-3929
(650) 380-5695
(650) 260-2170

Map and Direction




Physician's Profile

Full NameWarren David King
GenderMale
SpecialityOrthopaedic Surgery - Sports Medicine
Location100 S Ellsworth Ave Ste 504, San Mateo, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154485753
  • Provider Enumeration Date: 12/20/2006
  • Last Update Date: 03/24/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 6305911413
  • Enrollment ID: I20080822000729

Medical Identifiers

Medical identifiers for Warren David King such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154485753NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207X00000XOrthopaedic Surgery G53371 (California)Secondary
207XX0005XOrthopaedic Surgery - Sports Medicine G53371 (California)Primary

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. Warren David King allows following entities to bill medicare on his behalf.
Entity NameMarshall Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962506097
PECOS PAC ID: 7517875859
Enrollment ID: O20031208001095
Entity NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1982845186
PECOS PAC ID: 4284538778
Enrollment ID: O20090501000247
Entity NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1104067115
PECOS PAC ID: 4284538778
Enrollment ID: O20090501000456
Entity NameSutter Bay Medical Foundation
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1497996524
PECOS PAC ID: 4284538778
Enrollment ID: O20090506000097

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. Warren David King 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
Warren David King, MD
100 S Ellsworth Ave Ste 504,
San Mateo, CA 94401-3929

Ph: (650) 380-5695		Warren David King, MD
100 S Ellsworth Ave Ste 504,
San Mateo, CA 94401-3929

Ph: (650) 380-5695

Reviews and Comments


Orthopaedic Surgery Doctors in San Mateo, CA

Richard L. Florio, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 50 S San Mateo Dr, Ste 480, San Mateo, CA 94401
Phone: 650-343-4200    
Nancy Lynch, M.D.
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 210 42nd Ave, San Mateo, CA 94403
Phone: 650-393-5411    
Edward Chih-yu Sun, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 359 N San Mateo Dr, Suite 1, San Mateo, CA 94401
Phone: 650-685-7100    Fax: 650-685-7109
Paul E Hughes, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 100 South Ellsworth Avenue, Suite 504, San Mateo, CA 94401
Phone: 650-343-5633    Fax: 650-343-3122
Marvin Yukming Lo, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 359 N San Mateo Dr Ste 1, San Mateo, CA 94401
Phone: 650-685-7100    Fax: 650-685-7109

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.