Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Jo Koszarek, NP

Family Nurse Practitioner in Cloquet, MN · enumerated 2006.

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

National Provider Identifier

1487616363

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Jo Koszarek

Credential NP

Sex Female

Practice address 927 Trettel Ln, Fond Du Lac Human Services Division, Cloquet, MN, 55720

Phone (218) 879-1227

Fax (218) 878-2188

Enumeration date Apr 5, 2006

Last updated in NPPES May 24, 2013

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R-130517-3 (MN) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
699316800	Medicaid	MN	-

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 Mary Koszarek practice?

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

What is the NPI number for Mary Koszarek?

The National Provider Identifier (NPI) for Mary Koszarek is 1487616363, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-24.