Steven Mermelstein, LSW

Primary specialty

Social WorkerTaxonomy code 104100000X

License

44SL06789000 Issued in NJ

Practice address

671 Hoes LN W
Piscataway, NJ 08854-8021

Phone

(732) 235-5879

NPI assigned

Mar 23, 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

State licenses

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

{
    "created_epoch": "1774224000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1497693337",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "671 HOES LN W",
            "city": "PISCATAWAY",
            "state": "NJ",
            "postal_code": "088548021"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "671 HOES LN W",
            "city": "PISCATAWAY",
            "state": "NJ",
            "postal_code": "088548021",
            "telephone_number": "732-235-5879"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERMELSTEIN",
        "first_name": "STEVEN",
        "credential": "LSW",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-03-23",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Social Worker",
            "state": "NJ",
            "license": "44SL06789000",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Katrina S Mendoza, PHARMD
• Rita Mensah, LPC
• Matthew Menza, MD
• Barbara Jean Menzel, PSY.D.
• Merit Medical LLC
• Krista Merola, LCSW
• Gail Mesavitz
• Sarah Rachel Meyers, DO
• Lucille Miao
• Micare at Home, LLC

• Social Worker in Piscataway, NJ
• Providers in Piscataway, NJ by specialty
• Social Worker in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 23, 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.