Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy J Stefonek

Diabetes Educator Registered Nurse in Rhinelander, WI · enumerated 2006.

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

National Provider Identifier

1679653372

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Nancy J Stefonek

Sex Female

Practice address 2251 N Shore Dr, Rhinelander, WI, 54501

Phone (715) 361-2000

Fax (715) 361-2877

Enumeration date Oct 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163WD0400X Diabetes Educator Registered Nurse Nursing Service Providers · License 86174030 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Nancy Stefonek?

The National Provider Identifier (NPI) for Nancy Stefonek is 1679653372, a Type 1 (individual) record in the CMS NPPES registry.

Where does Nancy Stefonek practice?

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

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.