Isaac Taylor Gerhartz

Primary specialty

OpticianTaxonomy code 156FX1800X

License

ABOC-264958 Issued in WI

Practice address

10600 W Layton Ave
Greenfield, WI 53228-3258

Phone

(414) 209-0359

Fax

(414) 427-6168

NPI assigned

Apr 3, 2025

Sex

Male

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": "1743638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744243200000",
    "number": "1013711399",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2562 S 85TH ST",
            "city": "WEST ALLIS",
            "state": "WI",
            "postal_code": "532272720",
            "telephone_number": "414-304-9542"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10600 W LAYTON AVE",
            "city": "GREENFIELD",
            "state": "WI",
            "postal_code": "532283258",
            "telephone_number": "414-209-0359",
            "fax_number": "414-427-6168"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "250 Wolf Run",
            "address_purpose": "LOCATION",
            "city": "Mukwonago",
            "state": "WI",
            "postal_code": "531498470",
            "country_code": "US",
            "telephone_number": "262-363-2895",
            "fax_number": "262-363-2902",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "W159S6530 Moorland Rd",
            "address_purpose": "LOCATION",
            "city": "Muskego",
            "state": "WI",
            "postal_code": "531507515",
            "country_code": "US",
            "telephone_number": "414-209-0321",
            "fax_number": "414-422-9204",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GERHARTZ",
        "first_name": "ISAAC",
        "middle_name": "TAYLOR",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-04-03",
        "last_updated": "2025-04-10",
        "certification_date": "2025-04-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "156FX1800X",
            "taxonomy_group": "",
            "desc": "Technician/Technologist, Optician",
            "state": "WI",
            "license": "ABOC-264958",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Optician in Greenfield, WI
• Providers in Greenfield, WI by specialty
• Optician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 10, 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.