Individual provider Active NPI

Linda Mach, LCSW

  • Clinical Social Worker
  • West Covina, CA
National Provider Identifier
1679040752
Registry record updated Apr 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
122820 Issued in CA
Practice address
100 N Barranca St Ste 900I
West Covina, CA 91791-1637
Phone
(626) 888-1056
NPI assigned
Oct 26, 2018
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 1, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 122820 CA Primary

Addresses

Primary practice location

100 N Barranca St Ste 900I
West Covina, CA 91791-1637

Mailing address

3225 E Charlinda St
West Covina, CA 91791-3002
Phone (626) 888-1056

Other practice location 1

3225 E Charlinda St
West Covina, CA 91791-3002
Phone (626) 377-6764

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
122820CAMDClinical Social Worker

NPI Registry JSON

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

{
    "created_epoch": "1540512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775001600000",
    "number": "1679040752",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3225 E CHARLINDA ST",
            "city": "WEST COVINA",
            "state": "CA",
            "postal_code": "917913002",
            "telephone_number": "626-888-1056"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 N BARRANCA ST STE 900I",
            "city": "WEST COVINA",
            "state": "CA",
            "postal_code": "917911637",
            "telephone_number": "626-888-1056"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3225 E Charlinda St",
            "address_purpose": "LOCATION",
            "city": "West Covina",
            "state": "CA",
            "postal_code": "917913002",
            "country_code": "US",
            "telephone_number": "626-377-6764",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MACH",
        "first_name": "LINDA",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-10-26",
        "last_updated": "2026-04-01",
        "certification_date": "2026-04-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "122820",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in West Covina, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 1, 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.