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FRANK S GUZOWSKI MD
NPI 1871693523
Internal Medicine - Geriatric Medicine in Marshfield, WI

Active since September 23, 2006
1000 N OAK AVE, MARSHFIELD, WI 54449(715) 387-5879 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Frank S Guzowski Md NPPES

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

FRANK S GUZOWSKI MD (NPI 1871693523) is an individual geriatric medicine provider in Marshfield, Wisconsin, licensed in Wisconsin (23776) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1871693523
Entity TypeIndividualMale
Primary Taxonomy207RG0300X
Provider Legal NameFRANK S GUZOWSKICredential: MD
Location Address1000 N OAK AVEMarshfield, WI 54449-5777
Mailing Address1000 N Oak AveMarshfield, WI 54449-5777
Phone(715) 387-5879
Sole ProprietorNo
Enumeration DateSeptember 23, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1871693523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RG0300X
License✔ Licensed in WI · 23776
Definition
An internist who has 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 ListedInternal MedicineTaxonomy 207R00000X · License 23776 (WI)

Other Identifiers 1

Medicaid30401400WI

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.

ALISON RAE SAMPSON D.O.
Obstetrics & Gynecology
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5161
TAMARA L. LEAHY NP
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (800) 782-8581
SAMANTHA ELAINE MOORE RD, CD, CDCES
Dietitian, Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-7464
EUGENE H. LARSON PA
Physician Assistant
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5245
JAMES SKIBBA CRNA
Nurse Anesthetist, Certified Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-7179
KENNETH E ENGELHART MD
Internal Medicine
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5704
KRISTIN M GERNDT MD
Radiology (Vascular & Interventional Radiology)
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-3474
VIRGINIA WOOLWORTH NP
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5558

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 Frank Guzowski's NPI number?

The NPI number for Frank Guzowski is 1871693523. It was assigned to this individual provider in the NPPES registry on September 23, 2006.

Where is Frank Guzowski located?

Frank Guzowski practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5879.

What is Frank Guzowski's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

When was this NPI record last updated?

The NPPES record for Frank Guzowski was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.