Kathleen Anderson Drost, SLP

Primary specialty

Speech-Language PathologistTaxonomy code 235Z00000X

License

5439 Issued in CA

Practice address

21850 Feather Ave
Yorba Linda, CA 92887-3709

Phone

(714) 329-0515

NPI assigned

May 29, 2026

Last updated

May 29, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1780012800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1164353892",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21850 FEATHER AVE",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "928873709",
            "telephone_number": "714-329-0515"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21850 FEATHER AVE",
            "city": "YORBA LINDA",
            "state": "CA",
            "postal_code": "928873709",
            "telephone_number": "714-329-0515"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DROST",
        "first_name": "KATHLEEN",
        "middle_name": "ANDERSON",
        "credential": "SLP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-05-29",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "CA",
            "license": "5439",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Speech-Language Pathologist in Yorba Linda, CA
• Providers in Yorba Linda, CA by specialty
• Speech-Language Pathologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 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.