Libby Leibowitz

Libby Leibowitz is a Specialist provider (Specialist) practicing in Passaic, NJ, registered in the NPPES registry with NPI 1467930792 since 2018.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1467930792
Entity type	Individual (Type 1)
Name	Libby Leibowitz
Sex	Female
Practice address	Passaic, NJ, 07055
Phone	9735106178
Enumeration date	2018-07-30
Last updated in NPPES	2018-07-30

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
174400000X	Specialist	Primary	—	NY

Copy-ready billing details

Provider: Libby Leibowitz
NPI: 1467930792
Taxonomy: 174400000X (Specialist)
Address: Passaic, NJ, 07055

Verify this record

Cross-check NPI 1467930792 against the authoritative CMS record: view Libby Leibowitz on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Libby Leibowitz?

The National Provider Identifier (NPI) for Libby Leibowitz is 1467930792, a Type 1 (individual) record in the CMS NPPES registry.

Where does Libby Leibowitz practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-07-30.