Heidi Williams

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

License

140847 Issued in IA

Practice address

9 N 4TH Ave
Marshalltown, IA 50158-1836

Phone

(641) 751-3581

NPI assigned

Sep 21, 2026

Last updated

Sep 21, 2026By 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

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": "1789948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789948800000",
    "number": "1578475752",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1956 ZELLER AVE",
            "city": "MARSHALLTOWN",
            "state": "IA",
            "postal_code": "501589065",
            "telephone_number": "641-751-3581"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9 N 4TH AVE",
            "city": "MARSHALLTOWN",
            "state": "IA",
            "postal_code": "501581836",
            "telephone_number": "641-751-3581"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "HEIDI",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-09-21",
        "last_updated": "2026-09-21",
        "certification_date": "2026-09-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "IA",
            "license": "140847",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• C'Yanna Wilder
• Heather Deanne Willett
• Bethany Williams, PMHNP
• Deborah Lee Williams
• Erica Williams
• Jessica A Williams
• Gary Williamson, ATC
• Alison E. Wilson, MD
• Jessica Woellhof
• Susan Wolf

• Mental Health Counselor in Marshalltown, IA
• Providers in Marshalltown, IA by specialty
• Mental Health Counselor in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.