Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Cynthia Nicole Wittwer, PA-C

Physician Assistant in Fond Du Lac, WI · enumerated 2014.

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

National Provider Identifier

1326456807

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Registry record

Entity type Individual (Type 1)

Name Mrs. Cynthia Nicole Wittwer

Credential PA-C

Sex Female

Practice address 430 E Division St, Fond Du Lac, WI, 54935

Phone (920) 929-2300

Enumeration date Jul 28, 2014

Last updated in NPPES Jan 5, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 3400-23 (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 Cynthia Wittwer practice?

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

What is the NPI number for Cynthia Wittwer?

The National Provider Identifier (NPI) for Cynthia Wittwer is 1326456807, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-05.