Mathew Elder, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LC200002621 Issued in DC

Practice address

33 N St NE Apt 412
Washington, DC 20002-4187

Phone

(606) 272-3919

NPI assigned

Sep 27, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

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

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

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.

• Arms Acres Inc

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Carmel, NY
  • NPI 1235184227
  NPD (past)
• Arms Acres, Inc.

  • Substance Use Disorder Rehabilitation Clinic/Center
  • Jamaica, NY
  • NPI 1265020259
  NPD (past)
• The Fortune Society Inc.

  • Addiction (Substance Use Disorder) Counselor
  • Long Island City, NY
  • NPI 1235357237

  Clinical

  NPD (past)

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

{
    "created_epoch": "1569542400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758585600000",
    "number": "1104477413",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "33 N ST NE APT 412",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200024187"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "33 N ST NE APT 412",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200024187",
            "telephone_number": "606-272-3919"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ELDER",
        "first_name": "MATHEW",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-09-27",
        "last_updated": "2025-09-23",
        "certification_date": "2025-09-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "094773",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "DC",
            "license": "LC200002621",
            "primary": true
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "NY",
            "license": "107605",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Zayd Adnan Eldadah, MD, PHD
• Jacinta D Elder-Arrington, M.D.
• Anthony Elder
• Christian Elder, DPM
• Lia Devona Elder
• Patricia Elder, RD
• Timothy Edward Elder, DDS
• Elderhill Inc
• Vesna Ele, D.D.S.
• Eleanor Beeslaar Therapy PLLC

• Clinical Social Worker in Washington, DC
• Providers in Washington, DC by specialty
• Clinical Social Worker in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 23, 2025; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.