Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer J Westergaard, APNP

Nurse Practitioner in Mayville, WI · enumerated 2012.

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

National Provider Identifier

1396091831

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Registry record

Entity type Individual (Type 1)

Name Jennifer J Westergaard

Credential APNP

Sex Female

Practice address 360 S Mountin Dr, Mayville, WI, 53050

Phone (920) 387-7500

Fax (920) 387-7596

Enumeration date Aug 2, 2012

Last updated in NPPES May 12, 2023

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 164147-30 (WI) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4916-33 (WI) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4916-33 (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

Where does Jennifer Westergaard practice?

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

What is the NPI number for Jennifer Westergaard?

The National Provider Identifier (NPI) for Jennifer Westergaard is 1396091831, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-12.