Mariella Williams, LMSW

Primary specialty

Social WorkerTaxonomy code 104100000X

License

133291 Issued in NY

Practice address

115 E 82ND St
New York, NY 10028-0831

Phone

(646) 828-6230

NPI assigned

Aug 21, 2026

Sex

Female

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

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

{
    "created_epoch": "1787270400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787270400000",
    "number": "1609782341",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "44 E 67TH ST APT 3C",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100656134",
            "telephone_number": "201-220-9928"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "115 E 82ND ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100280831",
            "telephone_number": "646-828-6230"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARIELLA",
        "credential": "LMSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-08-21",
        "last_updated": "2026-08-21",
        "certification_date": "2026-08-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "133291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lynnette P Williams, M.D.
• Madeline Nickerson Williams, MD
• Madelyn J Williams, P.T.
• Maria Alexis Williams, LMSW
• Marian Williams, P.T.
• Marilyn Williams, PSYCHOLOGIST
• Marissa Williams, LPN
• Mark Williams, DPT
• Marvin Gaye Williams, MD
• Masrai Kennard Williams, MD

• Social Worker in New York, NY
• Providers in New York, NY by specialty
• Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 21, 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.