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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Heidi Ann Butler, MSW, LCSW, CSAC

Clinical Social Worker in Plymouth, WI · enumerated 2007 · practices at St Nicholas Hospital-Sisters of Third Order of St Francis.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821136300

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Registry record

Entity type Individual (Type 1)
Name Mrs. Heidi Ann Butler
Credential MSW, LCSW, CSAC
Sex Female
Practice address Plymouth, WI, 53073
Phone (920) 496-4700
Enumeration date Feb 5, 2007
Last updated in NPPES Mar 2, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 6868-123 (WI) Secondary
101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 12079-131 (WI) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6868-123 (WI) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
100050101 Medicaid WI -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Heidi Butler?
The National Provider Identifier (NPI) for Heidi Butler is 1821136300, a Type 1 (individual) record in the CMS NPPES registry.
Where does Heidi Butler practice?
The practice location on file with NPPES is in Plymouth, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-02.