Megan D Zeilstra, M.A. CCC-SLP

Primary specialty

Speech-Language PathologistTaxonomy code 235Z00000X

License

SP 19914 Issued in CA

Practice address

3926 Hayfield Loop
San Luis Obispo, CA 93401-6241

Phone

(805) 459-3282

NPI assigned

Sep 29, 2013

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

Other names 1

• Megan Hamm Former name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Arts

State licenses

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

{
    "created_epoch": "1380412800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777248000000",
    "number": "1811324338",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3926 HAYFIELD LOOP",
            "city": "SAN LUIS OBISPO",
            "state": "CA",
            "postal_code": "934016241"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3926 HAYFIELD LOOP",
            "city": "SAN LUIS OBISPO",
            "state": "CA",
            "postal_code": "934016241",
            "telephone_number": "805-459-3282"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 Lizzie St",
            "address_purpose": "LOCATION",
            "city": "San Luis Obispo",
            "state": "CA",
            "postal_code": "934013062",
            "country_code": "US",
            "telephone_number": "805-549-1200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ZEILSTRA",
        "first_name": "MEGAN",
        "middle_name": "D",
        "name_prefix": "Ms.",
        "credential": "M.A. CCC-SLP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2013-09-29",
        "last_updated": "2026-04-27",
        "certification_date": "2026-04-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "CA",
            "license": "SP 19914",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MEGAN",
            "last_name": "HAMM",
            "credential": "M.A. CCC-SLP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Speech-Language Pathologist in San Luis Obispo, CA
• Providers in San Luis Obispo, 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 Apr 27, 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.