Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Demi Elisabeth Hagen, PA-C

Physician Assistant in Wauwatosa, WI · enumerated 2018 · practices at Childrens Hospital of Wisconsin Inc.

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

National Provider Identifier

1003392770

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Registry record

Entity type Individual (Type 1)

Name Demi Elisabeth Hagen

Credential PA-C

Sex Female

Practice address 8915 W Connell Ave, Wauwatosa, WI, 53226

Phone (414) 266-2626

Enumeration date Jul 16, 2018

Last updated in NPPES Jul 17, 2024

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 4529-23 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
1003392770	Medicaid	WI	-

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 Demi Hagen?

Demi Hagen is registered in NPPES with the primary taxonomy of Physician Assistant. 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 2024-07-17.