William Thomsen, FNP-C

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

95300277 Issued in CA

Practice address

1304 Albina Ave # 3
Berkeley, CA 94706-2526

Phone

(650) 387-8269

NPI assigned

Sep 3, 2026

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1788393600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788393600000",
    "number": "1821907072",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1304 ALBINA AVE # 3",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "947062526"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1304 ALBINA AVE # 3",
            "city": "BERKELEY",
            "state": "CA",
            "postal_code": "947062526",
            "telephone_number": "650-387-8269"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THOMSEN",
        "first_name": "WILLIAM",
        "credential": "FNP-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-09-03",
        "last_updated": "2026-09-03",
        "certification_date": "2026-09-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "95300277",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Susan Margaret Thompson, M.A.
• Verdie Lee Thompson, RN, PHN, MSN, PNP
• Veronique Lee Thompson, PH.D.
• Kira Thomsen
• Mary Beth Thomsen, PH.D.
• Amy Catherine Thomson, N.P.
• Pate D. Thomson, MD
• Linda Baker Thornton, NP
• Zoe Kym Thornton
• Jan Caldwell Thorpe, MA, PHD

• Family Medicine Physician in Berkeley, CA
• Providers in Berkeley, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 3, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.