Lawrence A. Propper, MSW LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

R021518 Issued in NM

Practice address

28 North Country Rd
Suite 101
Mt Sinai, NY 11766

Phone

(631) 928-2596

NPI assigned

Feb 15, 2007

Last updated

May 6, 2026By the provider in NPPES

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

Enrolled in NY

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 1978

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1171497600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1336282615",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "28 NORTH COUNTRY RD.",
            "address_2": "SUITE 202",
            "city": "MT SINAI",
            "state": "NY",
            "postal_code": "117661518",
            "telephone_number": "631-334-0338"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "28 NORTH COUNTRY RD",
            "address_2": "SUITE 101",
            "city": "MT SINAI",
            "state": "NY",
            "postal_code": "11766",
            "telephone_number": "631-928-2596"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PROPPER",
        "first_name": "LAWRENCE",
        "middle_name": "A.",
        "name_prefix": "Mr.",
        "credential": "MSW LCSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-15",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NM",
            "license": "R021518",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Clinical Social Worker in Mount Sinai, NY
• Providers in Mount Sinai, 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 May 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.