Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hannah Claire Mathiot, LMSW

Social Worker in Grand Haven, MI · enumerated 2016.

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

National Provider Identifier

1124574264

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Registry record

Entity type Individual (Type 1)

Name Hannah Claire Mathiot

Credential LMSW

Sex Female

Practice address 15100 Whittaker Way, Grand Haven, MI, 49417

Phone (616) 935-6300

Enumeration date Aug 29, 2016

Last updated in NPPES May 1, 2024

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 6802088783 (MI) 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

What is the NPI number for Hannah Mathiot?

The National Provider Identifier (NPI) for Hannah Mathiot is 1124574264, a Type 1 (individual) record in the CMS NPPES registry.

Where does Hannah Mathiot practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-01.