NPIMap

Organization Active NPI

National Speech Language Therapy Center, LLC

Doing business as National Therapy Center

  • Behavior Analyst
  • Washington, DC
National Provider Identifier
1235035809
Registry record updated Oct 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Behavior AnalystTaxonomy code 103K00000X
Legal business name
NATIONAL SPEECH LANGUAGE THERAPY CENTER, LLC
Doing business as
National Therapy Center
Practice address
412 1St St SE Rear Building
Washington, DC 20003-1804
Phone
(202) 470-4185
NPI assigned
Oct 19, 2026
Last updated
Oct 23, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
NATIONAL SPEECH LANGUAGE THERAPY CENTERAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Oct 23, 2026

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

Authorized official

Name
Sabra Gelfond
Title
Owner
Phone
(301) 540-0445

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Behavior AnalystGroup: 193200000X MULTI-SPECIALTY GROUP 103K00000X Primary
Behavior TechnicianGroup: 193200000X MULTI-SPECIALTY GROUP 106S00000X

Addresses

Primary practice location

412 1St St SE Rear Building
Washington, DC 20003-1804

Mailing address

412 1St St SE Rear Building
Washington, DC 20003-1804
Phone (202) 470-4185

Other names 1

  • National Therapy Center Doing business as

National Provider Directory

National Provider Directory
Tax ID family
National Speechlanguage Therapy Center4 organizations share this tax ID, including this one

Other organizations with this tax ID 3

Organizations that report the same tax identification number in the National Provider Directory.

Locations

412 1st St SE
Rear
Washington, DC 20003
Phone (202) 470-4185

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

Practitioners & affiliated clinicians

Practitioners 21

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 21

NPI Registry JSON

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

{
    "created_epoch": "1792368000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1792713600000",
    "number": "1235035809",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "412 1ST ST SE REAR BUILDING",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200031804",
            "telephone_number": "202-470-4185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "412 1ST ST SE REAR BUILDING",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200031804",
            "telephone_number": "202-470-4185"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "NATIONAL SPEECH LANGUAGE THERAPY CENTER, LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "NATIONAL SPEECH LANGUAGE THERAPY CENTER",
        "enumeration_date": "2026-10-19",
        "last_updated": "2026-10-23",
        "certification_date": "2026-10-23",
        "status": "A",
        "authorized_official_last_name": "GELFOND",
        "authorized_official_first_name": "SABRA",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "301-540-0445"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Behavior Analyst",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "106S00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Behavior Technician",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "National Therapy Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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 Oct 23, 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.