Individual provider Active NPI

Lena Trieger

  • Social Worker
  • New York, NY
National Provider Identifier
1083570444
Registry record updated Dec 30, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
127989 Issued in NY
Practice address
347 5TH Ave RM 1103
New York, NY 10016-5050
Phone
(866) 232-7328
NPI assigned
Dec 30, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 30, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Social Worker 104100000X 127989 NY Primary

Addresses

Primary practice location

347 5TH Ave RM 1103
New York, NY 10016-5050

Mailing address

12 E 22ND St
New York, NY 10010-6111

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
127989NYMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Family Guiding Psychological Services, PLLC PastSince Jan 4, 2026 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": "1767052800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767052800000",
    "number": "1083570444",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12 E 22ND ST",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100106111"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "347 5TH AVE RM 1103",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100165050",
            "telephone_number": "866-232-7328"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TRIEGER",
        "first_name": "LENA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-12-30",
        "last_updated": "2025-12-30",
        "certification_date": "2025-12-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "127989",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New York, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 30, 2025; 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.