Hannah Lynn Onnen

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Practice address

20550 N Lagrange Rd Ste 115&210
Frankfort, IL 60423-1397

Phone

(708) 614-6860

NPI assigned

Jan 27, 2025

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

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": "1737936000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786924800000",
    "number": "1255144168",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1406 COOK BLVD",
            "city": "BRADLEY",
            "state": "IL",
            "postal_code": "609152629",
            "telephone_number": "815-662-7221"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20550 N LAGRANGE RD STE 115&210",
            "city": "FRANKFORT",
            "state": "IL",
            "postal_code": "604231397",
            "telephone_number": "708-614-6860"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ONNEN",
        "first_name": "HANNAH",
        "middle_name": "LYNN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-01-27",
        "last_updated": "2026-08-17",
        "certification_date": "2026-08-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Mental Health Counselor in Frankfort, IL
• Providers in Frankfort, IL by specialty
• Mental Health Counselor in Illinois

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