Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARCIE ANN JANZ APNP
NPI 1164415634
Family Medicine - Geriatric Medicine in Fond Du Lac, WI

Active since August 30, 2005
481 E DIVISION ST, SUITE 100, FOND DU LAC, WI 54935(920) 929-8120(920) 929-8126 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Marcie Ann Janz Apnp NPPES

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

MARCIE ANN JANZ APNP (NPI 1164415634) is an individual geriatric medicine provider in Fond Du Lac, Wisconsin, licensed in Wisconsin (28) and active in the NPI registry since August 2005.

NPPES Registry Identity

NPI1164415634
Entity TypeIndividualFemale
Primary Taxonomy207QG0300X
Provider Legal NameMARCIE ANN JANZCredential: APNP
Location Address481 E DIVISION ST, SUITE 100Fond Du Lac, WI 54935-3748
Mailing Address481 E Division St, Suite 100Fond Du Lac, WI 54935-3748 · (920) 929-8120 · Fax (920) 929-8126
Fax(920) 929-8126
Sole ProprietorNo
Enumeration DateAugust 30, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1164415634 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207QG0300X
License Licensed in WI · 28
Definition

A family medicine physician with special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes, and the hospital.

Also ListedFamily MedicineTaxonomy 207Q00000X · License 28 (WI)
481 E DIVISION ST, Fond Du Lac, WI 54935

Other Identifiers 1

Medicaid43817600WI

Other Providers at the Same Location NPPES 17

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

Radiology (Diagnostic Radiology)
481 E DIVISION ST
FOND DU LAC, WI 54935
Hearing Instrument Specialist
481 E DIVISION ST, STE 900
FOND DU LAC, WI 54935
Radiology (Diagnostic Radiology)
481 E DIVISION ST
FOND DU LAC, WI 54935
Hearing Instrument Specialist
481 E DIVISION ST
FOND DU LAC, WI 54935
Family Medicine (Geriatric Medicine)
481 E DIVISION ST, SUITE 100
FOND DU LAC, WI 54935
Hearing Instrument Specialist
481 E DIVISION ST, STE 900
FOND DU LAC, WI 54935
Radiology (Diagnostic Radiology)
481 E DIVISION ST
FOND DU LAC, WI 54935
Radiology (Diagnostic Radiology)
481 E DIVISION ST
FOND DU LAC, WI 54935

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marcie Janz's NPI number?

The NPI number for Marcie Janz is 1164415634. It was assigned to this individual provider in the NPPES registry on August 30, 2005.

Where is Marcie Janz located?

Marcie Janz practices at 481 E Division St Suite 100, Fond Du Lac, WI 54935. The listed phone number is (920) 929-8120.

What is Marcie Janz's specialty?

The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.

When was this NPI record last updated?

The NPPES record for Marcie Janz was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.