Lawrence Arthur William

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

G17910 Issued in CA

Practice address

1165 Triton Dr
Foster City, CA 94404-1213

Phone

(650) 358-5811

NPI assigned

Mar 27, 2007

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other names 1

• Dr. Lawrence A William Professional name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1174953600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1124146808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11557 HILLPARK LN",
            "city": "LOS ALTOS HILLS",
            "state": "CA",
            "postal_code": "940246528",
            "telephone_number": "650-948-3632"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1165 TRITON DR",
            "city": "FOSTER CITY",
            "state": "CA",
            "postal_code": "944041213",
            "telephone_number": "650-358-5811"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAM",
        "first_name": "LAWRENCE",
        "middle_name": "ARTHUR",
        "name_prefix": "Dr.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-03-27",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G17910",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "G17910",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "LAWRENCE",
            "last_name": "WILLIAM",
            "middle_name": "A",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

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• Internal Medicine Physician in Foster City, CA
• Providers in Foster City, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.