Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Carese Walczyk, RDN, CD

Registered Dietitian in Appleton, WI · enumerated 2024.

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

National Provider Identifier

1508683921

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Registry record

Entity type Individual (Type 1)

Name Carese Walczyk

Credential RDN, CD

Sex Female

Practice address Appleton, WI, 54915

Phone (920) 676-3270

Enumeration date Sep 25, 2024

Last updated in NPPES Sep 25, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 3328 (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

Where does Carese Walczyk practice?

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

What is the NPI number for Carese Walczyk?

The National Provider Identifier (NPI) for Carese Walczyk is 1508683921, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-25.