Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Jennifer Greiner, NP

Family Nurse Practitioner in Appleton, WI · enumerated 2007.

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

National Provider Identifier

1477698603

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Registry record

Entity type Individual (Type 1)

Name Mrs. Jennifer Greiner

Credential NP

Sex Female

Practice address 1531 S Madison St, Suite 250, Appleton, WI, 54915

Phone (920) 730-4429

Enumeration date Feb 21, 2007

Last updated in NPPES Dec 8, 2015

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2319-033 (WI) 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
41178900	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

Where does Jennifer Greiner practice?

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

What is the NPI number for Jennifer Greiner?

The National Provider Identifier (NPI) for Jennifer Greiner is 1477698603, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-08.