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

Margaret Maria Westfox, RN

Registered Nurse in Fitchburg, WI · enumerated 2021.

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

National Provider Identifier

1629735063

Verified

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Registry record

Entity type Individual (Type 1)

Name Margaret Maria Westfox

Credential RN

Sex Female

Practice address Fitchburg, WI, 53711

Phone (608) 886-5005

Enumeration date Nov 19, 2021

Last updated in NPPES Nov 19, 2021

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

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 195202 (WI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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 Margaret Westfox practice?

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

What is the NPI number for Margaret Westfox?

The National Provider Identifier (NPI) for Margaret Westfox is 1629735063, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-19.