Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lillianna Louis Petsch-Horvath, MSW, APSW

Clinical Social Worker in Milwaukee, WI · enumerated 2025.

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

National Provider Identifier

1861206054

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Registry record

Entity type Individual (Type 1)

Name Lillianna Louis Petsch-Horvath

Credential MSW, APSW

Sex X

Practice address 240 N Milwaukee St Ste 202, Milwaukee, WI, 53202

Phone (262) 646-8288

Enumeration date Feb 6, 2025

Last updated in NPPES Feb 6, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 135306-121 (WI) Primary

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 Lillianna Petsch-Horvath?

The National Provider Identifier (NPI) for Lillianna Petsch-Horvath is 1861206054, a Type 1 (individual) record in the CMS NPPES registry.

Where does Lillianna Petsch-Horvath practice?

The practice location on file with NPPES is in Milwaukee, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Heather Nagel Clinical Social Worker · Milwaukee, WI NPI 1013343870 Alexandra Moeller Clinical Social Worker · Milwaukee, WI NPI 1194273888 Jazmine Mahler Mental Health Counselor · Milwaukee, WI NPI 1265364319

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-06.