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Helen M Leszczynska, MD

Pediatrics Physician in Vernon, NJ · enumerated 2019.

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

National Provider Identifier

1699237453

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Registry record

Entity type Individual (Type 1)
Name Helen M Leszczynska
Credential MD
Sex Female
Practice address 249 State Rt 94, Vernon, NJ, 07462
Phone (973) 827-4550
Enumeration date Apr 2, 2019
Last updated in NPPES Jul 7, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 25MA11371400 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

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Frequently asked questions

Where does Helen Leszczynska practice?
The practice location on file with NPPES is in Vernon, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Helen Leszczynska?
The National Provider Identifier (NPI) for Helen Leszczynska is 1699237453, 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 2023-07-07.