Mark C Tiefel

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

12832 Issued in WI

Practice address

W175N11120 Stonewood Dr
Germantown, WI 53022-4799

Phone

(800) 438-1772

Fax

(262) 345-5562

NPI assigned

Sep 24, 2026

Last updated

Sep 24, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

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

{
    "created_epoch": "1790208000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790208000000",
    "number": "1003729641",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "W175N11120 STONEWOOD DR",
            "city": "GERMANTOWN",
            "state": "WI",
            "postal_code": "530224799",
            "telephone_number": "800-438-1772",
            "fax_number": "262-345-5562"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "W175N11120 STONEWOOD DR",
            "city": "GERMANTOWN",
            "state": "WI",
            "postal_code": "530224799",
            "telephone_number": "800-438-1772",
            "fax_number": "262-345-5562"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TIEFEL",
        "first_name": "MARK",
        "middle_name": "C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-09-24",
        "last_updated": "2026-09-24",
        "certification_date": "2026-09-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "WI",
            "license": "12832",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Mental Health Counselor in Germantown, WI
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• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.