NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christtraude Croissant

Registered Nurse in Traverse City, MI · enumerated 2017.

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

National Provider Identifier

1164957270

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Christtraude Croissant
Sex Female
Practice address 1919 Sequoia St, Traverse City, MI, 49686
Enumeration date Apr 26, 2017
Last updated in NPPES Apr 26, 2017

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 4704192459 (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 Christtraude Croissant?
The National Provider Identifier (NPI) for Christtraude Croissant is 1164957270, a Type 1 (individual) record in the CMS NPPES registry.
Where does Christtraude Croissant practice?
The practice location on file with NPPES is in Traverse City, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-04-26.