William A Mousser

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

License

832-97 Issued in HI

Practice address

84-578 Manuku Street
Waianae, HI 96792

Phone

(808) 306-9842

NPI assigned

Sep 16, 2026

Sex

Male

Sole proprietor

Yes

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

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1789516800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1699686600",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 458",
            "city": "WAIANAE",
            "state": "HI",
            "postal_code": "967920458",
            "telephone_number": "808-306-9842"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "84-578 MANUKU STREET",
            "city": "WAIANAE",
            "state": "HI",
            "postal_code": "96792",
            "telephone_number": "808-306-9842"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOUSSER",
        "first_name": "WILLIAM",
        "middle_name": "A",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-09-16",
        "last_updated": "2026-09-16",
        "certification_date": "2026-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "HI",
            "license": "832-97",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Addiction (Substance Use Disorder) Counselor in Waianae, HI
• Providers in Waianae, HI by specialty
• Addiction (Substance Use Disorder) Counselor in Hawaii

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 16, 2026; 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.