Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Anne Margaret Fischer

Nurse Practitioner in Sun Prairie, WI · enumerated 2017.

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

National Provider Identifier

1538674379

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Registry record

Entity type Individual (Type 1)

Name Anne Margaret Fischer

Sex Female

Practice address 134 Cliff St, Sun Prairie, WI, 53590

Phone (608) 239-3767

Enumeration date Dec 1, 2017

Last updated in NPPES Jan 14, 2021

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 8090-33 (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

Is NPI 1538674379 active?

Yes, as of the latest NPPES snapshot, NPI 1538674379 is active (record last updated 2021-01-14).

How do I verify Anne Fischer's NPI record?

Cross-check NPI 1538674379 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-14.