Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Michelle Marie Woinarowicz, FNP

Nephrology Physician in Warren, MN · enumerated 2006.

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

National Provider Identifier

1336151257

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Michelle Marie Woinarowicz

Credential FNP

Sex Female

Practice address 300 W Good Samaritan Dr, Warren, MN, 56762

Phone (218) 745-4211

Fax (218) 745-3254

Enumeration date Aug 12, 2006

Last updated in NPPES Nov 4, 2021

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License R25278 (ND) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 302M9W0 (MN) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michelle Woinarowicz?

Michelle Woinarowicz is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-04.