Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary J Degenhardt, CNS-BC, APNP, RN

Gerontology Clinical Nurse Specialist in Milwaukee, WI · enumerated 2025.

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

National Provider Identifier

1881493062

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Registry record

Entity type Individual (Type 1)

Name Mary J Degenhardt

Credential CNS-BC, APNP, RN

Sex Female

Practice address 5000 W National Ave, Milwaukee, WI, 53295

Phone (414) 384-2000

Enumeration date Mar 11, 2025

Last updated in NPPES May 6, 2026

Taxonomy & licenses

364SG0600X Gerontology Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 9259-33 (WI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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

What specialty is Mary Degenhardt?

Mary Degenhardt is registered in NPPES with the primary taxonomy of Gerontology Clinical Nurse Specialist. 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 2026-05-06.