Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephanie Thommen

Case Manager/Care Coordinator in Ludington, MI · enumerated 2016.

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

National Provider Identifier

1942654645

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Stephanie Thommen

Sex Female

Practice address 920 Diana St, Ludington, MI, 49431

Phone (231) 845-6294

Fax (231) 845-7095

Enumeration date Apr 19, 2016

Last updated in NPPES Apr 19, 2016

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other 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 Stephanie Thommen 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 Stephanie Thommen?

The National Provider Identifier (NPI) for Stephanie Thommen is 1942654645, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-19.