Individual provider Active NPI

Gregory Hetmeyer, LCSW SIFI CAMS II

  • Clinical Social Worker
  • Centereach, NY
National Provider Identifier
1609548478
Registry record updated Jan 30, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
101961 Issued in NY
Practice address
10 Sycamore St
Centereach, NY 11720-1726
Phone
(516) 395-4721
NPI assigned
Sep 30, 2021
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jan 30, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 101961 NY Primary

Addresses

Primary practice location

10 Sycamore St
Centereach, NY 11720-1726

Mailing address

10 Sycamore St
Centereach, NY 11720-1726
Phone (516) 395-4721

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address hetmeyerg7@outlook.com Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
101961NYMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Hetmeyer Clinical Social Work Services, LCSW PLLC Clinical Current Accepting new patients

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1632960000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1609548478",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10 SYCAMORE ST",
            "city": "CENTEREACH",
            "state": "NY",
            "postal_code": "117201726",
            "telephone_number": "516-395-4721"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10 SYCAMORE ST",
            "city": "CENTEREACH",
            "state": "NY",
            "postal_code": "117201726",
            "telephone_number": "516-395-4721"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HETMEYER",
        "first_name": "GREGORY",
        "name_prefix": "Mr.",
        "credential": "LCSW SIFI CAMS II",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2021-09-30",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "101961",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hetmeyerg7@outlook.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "10 Sycamore St",
            "city": "Centereach",
            "state": "NY",
            "country_code": "US",
            "postal_code": "117201726",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Centereach, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 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.