Individual provider Active NPI

Marisa Bierenfeld, M.S. CCC-SLP

  • Speech-Language Pathologist
  • Washington, DC
National Provider Identifier
1407322126
Registry record updated Aug 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Speech-Language PathologistTaxonomy code 235Z00000X
License
41YS00955000 Issued in NJ
Practice address
100 Peabody St NW
Washington, DC 20011-2212
Phone
(202) 808-9800
NPI assigned
Oct 19, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 10, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Speech-Language Pathologist 235Z00000X SLP001316 DC
Speech-Language Pathologist 235Z00000X 41YS00955000 NJ Primary

Addresses

Primary practice location

100 Peabody St NW
Washington, DC 20011-2212

Mailing address

672 Quinton Ave
Kenilworth, NJ 07033-1815
Phone (908) 477-1248

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
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
SLP001316DCMDSpeech-Language Pathologist
41YS00955000NJMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Easy Speak Therapy LLC Speech-Language Pathologist CurrentSince Aug 17, 2025 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

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

{
    "created_epoch": "1539907200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754784000000",
    "number": "1407322126",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "672 QUINTON AVE",
            "city": "KENILWORTH",
            "state": "NJ",
            "postal_code": "070331815",
            "telephone_number": "908-477-1248"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 PEABODY ST NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200112212",
            "telephone_number": "202-808-9800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BIERENFELD",
        "first_name": "MARISA",
        "credential": "M.S. CCC-SLP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-10-19",
        "last_updated": "2025-08-10",
        "certification_date": "2025-08-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "DC",
            "license": "SLP001316",
            "primary": false
        },
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "NJ",
            "license": "41YS00955000",
            "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 Aug 10, 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.