Lisa Marie Irwin

Primary specialty

Peer SpecialistTaxonomy code 175T00000X

Practice address

401 Imperial Hwy
Fullerton, CA 92835-1145

Phone

(714) 447-7000

Fax

(714) 447-7003

NPI assigned

Feb 16, 2016

Last updated

Jun 17, 2025By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1455580800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750118400000",
    "number": "1033578299",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "401 IMPERIAL HWY",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928351145",
            "telephone_number": "714-447-7000",
            "fax_number": "714-447-7003"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 IMPERIAL HWY",
            "city": "FULLERTON",
            "state": "CA",
            "postal_code": "928351145",
            "telephone_number": "714-447-7000",
            "fax_number": "714-447-7003"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "IRWIN",
        "first_name": "LISA",
        "middle_name": "MARIE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-02-16",
        "last_updated": "2025-06-17",
        "certification_date": "2025-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "175T00000X",
            "taxonomy_group": "",
            "desc": "Peer Specialist",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NON-BILLABLE",
            "identifier": "1033578299",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Peer Specialist in Fullerton, CA
• Providers in Fullerton, CA by specialty
• Peer Specialist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 17, 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.