NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Jo Pieper

Registered Nurse in Wadena, MN · enumerated 2019 · practices at County of Wadena.

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

National Provider Identifier

1518503176

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Registry record

Entity type Individual (Type 1)
Name Ms. Mary Jo Pieper
Sex Female
Practice address 22 Dayton Ave Se, Wadena, MN, 56482
Phone (218) 632-8493
Fax (218) 260-2727
Enumeration date Nov 19, 2019
Last updated in NPPES Nov 19, 2019

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License R96529-7 (MN) Primary

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.

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Frequently asked questions

What specialty is Mary Pieper?
Mary Pieper is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-19.