Individual provider Active NPI

Margaret Mary Matusofsky, M.S.

  • Audiologist-Hearing Aid Fitter
  • Saint Louis, MO
National Provider Identifier
1831235233
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Audiologist-Hearing Aid FitterTaxonomy code 237600000X
License
2004025148 Issued in MO
Practice address
4560 Clayton Ave
Saint Louis, MO 63110-1502
Phone
(314) 977-0136
Fax
(314) 977-0016
NPI assigned
Jan 30, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Audiologist 231H00000X 2004022971 MO
Assistive Technology Practitioner Audiologist 231HA2400X 2004022971 MO
Assistive Technology Supplier Audiologist 231HA2500X 2004022971 MO
Audiologist-Hearing Aid Fitter 237600000X 2004025148 MO Primary

Addresses

Primary practice location

4560 Clayton Ave
Saint Louis, MO 63110-1502

Mailing address

310 Ridge Oak CT
Ballwin, MO 63021-8335
Phone (636) 220-9016

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)
Enrolled
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
2004022971MOMDAssistive Technology Practitioner Audiologist
2004025148MOMDAudiologist-Hearing Aid Fitter

NPI Registry JSON

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

{
    "created_epoch": "1170115200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1831235233",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "310 RIDGE OAK CT",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630218335",
            "telephone_number": "636-220-9016"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4560 CLAYTON AVE",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101502",
            "telephone_number": "314-977-0136",
            "fax_number": "314-977-0016"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MATUSOFSKY",
        "first_name": "MARGARET",
        "middle_name": "MARY",
        "name_prefix": "Mrs.",
        "credential": "M.S.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-01-30",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "231H00000X",
            "taxonomy_group": "",
            "desc": "Audiologist",
            "state": "MO",
            "license": "2004022971",
            "primary": false
        },
        {
            "code": "231HA2400X",
            "taxonomy_group": "",
            "desc": "Audiologist, Assistive Technology Practitioner",
            "state": "MO",
            "license": "2004022971",
            "primary": false
        },
        {
            "code": "231HA2500X",
            "taxonomy_group": "",
            "desc": "Audiologist, Assistive Technology Supplier",
            "state": "MO",
            "license": "2004022971",
            "primary": false
        },
        {
            "code": "237600000X",
            "taxonomy_group": "",
            "desc": "Audiologist-Hearing Aid Fitter",
            "state": "MO",
            "license": "2004025148",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.