Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY JO WILLIS NP
NPI 1679537294
Nurse Practitioner in Madison, WI

Q: What is Mary Jo Willis's NPI number?

The NPI number for Mary Jo Willis is 1679537294. It was assigned to this individual provider in the NPPES registry on April 12, 2006.

Q: What is Mary Jo Willis's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Jo Willis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 12, 2006

2880 UNIVERSITY AVE, MADISON, WI 53705(608) 263-7500(608) 833-6932 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Mary Jo Willis Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY JO WILLIS NP (NPI 1679537294) is an individual nurse practitioner in Madison, Wisconsin, licensed in Wisconsin (43266) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1679537294

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMARY JO WILLISCredential: NP

Location Address2880 UNIVERSITY AVEMadison, WI 53705

Mailing Address8007 Excelsior DriveMadison, WI 53717 · (608) 829-5201 · Fax (608) 833-6932

Phone(608) 263-7500

Fax(608) 833-6932

Sole ProprietorNo

Enumeration DateApril 12, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1679537294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in WI · 43266

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

2880 UNIVERSITY AVE, Madison, WI 53705

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Other Identifiers 1

Medicaid43829500WI

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANTHONY J GARCIA-PRATS MD

Pediatrics