Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Anna Wietrzykowski

Social Worker in Ludington, MI · enumerated 2025.

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

National Provider Identifier

1124811633

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Registry record

Entity type Individual (Type 1)

Name Anna Wietrzykowski

Sex X

Practice address 920 Diana St, Ludington, MI, 49431

Phone (231) 845-6294

Fax (231) 845-7095

Enumeration date May 27, 2025

Last updated in NPPES May 27, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Anna Wietrzykowski practice?

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

What is the NPI number for Anna Wietrzykowski?

The National Provider Identifier (NPI) for Anna Wietrzykowski is 1124811633, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-27.