Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Kiefer, APN

Q: What is the NPI number for Karen Kiefer?

The National Provider Identifier (NPI) for Karen Kiefer is 1194297978, a Type 1 (individual) record in the CMS NPPES registry.

Gerontology Nurse Practitioner in Kenilworth, NJ · enumerated 2018.

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

National Provider Identifier

1194297978

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Registry record

Entity type Individual (Type 1)

Name Karen Kiefer

Credential APN

Sex Female

Practice address 657 Newark Ave, Kenilworth, NJ, 07033

Phone (908) 477-3047

Enumeration date Dec 18, 2018

Last updated in NPPES Dec 18, 2018

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00872700 (NJ) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 26NJ00872700 (NJ) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Karen Kiefer?

The National Provider Identifier (NPI) for Karen Kiefer is 1194297978, a Type 1 (individual) record in the CMS NPPES registry.

Where does Karen Kiefer practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-18.