Individual provider Active NPI

Maria Lynn Lasser

  • Social Worker
  • Washington, DC
National Provider Identifier
1841150372
Registry record updated Sep 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
LG200003420 Issued in DC
Practice address
5724 Chevy Chase Pkwy NW
Washington, DC 20015-2522
Phone
(202) 460-1964
NPI assigned
Nov 17, 2025
Last updated
Sep 10, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Sep 10, 2026

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 LG200003420 DC Primary

Addresses

Primary practice location

5724 Chevy Chase Pkwy NW
Washington, DC 20015-2522

Mailing address

5724 Chevy Chase Pkwy NW
Washington, DC 20015-2522
Phone (202) 460-1964

Other practice location 1

2333 Ontario Rd NW
Washington, DC 20009-2627
Phone (202) 483-8196

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
LG200003420DCMDSocial Worker

NPI Registry JSON

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

{
    "created_epoch": "1763337600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788998400000",
    "number": "1841150372",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5724 CHEVY CHASE PKWY NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200152522",
            "telephone_number": "202-460-1964"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5724 CHEVY CHASE PKWY NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200152522",
            "telephone_number": "202-460-1964"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2333 Ontario Rd NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200092627",
            "country_code": "US",
            "telephone_number": "202-483-8196",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LASSER",
        "first_name": "MARIA",
        "middle_name": "LYNN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2025-11-17",
        "last_updated": "2026-09-10",
        "certification_date": "2026-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "DC",
            "license": "LG200003420",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Washington, DC

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.