Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Isabel Sara Pfeiffer, LMSW

Clinical Social Worker in Fort Lee, NJ · enumerated 2025.

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

National Provider Identifier

1942095567

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Registry record

Entity type Individual (Type 1)

Name Isabel Sara Pfeiffer

Credential LMSW

Sex Female

Practice address 440 West St # 313, Fort Lee, NJ, 07024

Phone (888) 242-2732

Enumeration date Apr 14, 2025

Last updated in NPPES Apr 14, 2025

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 115565 (NY) 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

Where does Isabel Pfeiffer practice?

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

What is the NPI number for Isabel Pfeiffer?

The National Provider Identifier (NPI) for Isabel Pfeiffer is 1942095567, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-14.