Nathaniel O'Neil, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

106007-1 Issued in NY

Practice address

2233 Nesconset Hwy
Lake Grove, NY 11755-1000

Phone

(631) 786-8930

NPI assigned

Jul 12, 2021

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

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1626048000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767830400000",
    "number": "1801468616",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2233 NESCONSET HWY STE 106",
            "city": "LAKE GROVE",
            "state": "NY",
            "postal_code": "117551000",
            "telephone_number": "631-786-8930"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2233 NESCONSET HWY",
            "city": "LAKE GROVE",
            "state": "NY",
            "postal_code": "117551000",
            "telephone_number": "631-786-8930"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1757 NORTH OCEAN AVE",
            "address_purpose": "LOCATION",
            "city": "MEDFORD",
            "state": "NY",
            "postal_code": "11763",
            "country_code": "US",
            "telephone_number": "631-654-1919",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'NEIL",
        "first_name": "NATHANIEL",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-07-12",
        "last_updated": "2026-01-08",
        "certification_date": "2026-01-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "106007-1",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Clinical Social Worker in Lake Grove, NY
• Providers in Lake Grove, NY by specialty
• Clinical Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 8, 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.