Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Margaret K Szydlak, N.P.

Family Nurse Practitioner in Glen Cove, NY · enumerated 2017.

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

National Provider Identifier

1922544469

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Registry record

Entity type Individual (Type 1)

Name Margaret K Szydlak

Credential N.P.

Sex Female

Practice address Glen Cove, NY, 11542

Phone (516) 674-7300

Enumeration date Jan 9, 2017

Last updated in NPPES Jan 9, 2017

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F340276 (NY) 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

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

Is NPI 1922544469 active?

Yes, as of the latest NPPES snapshot, NPI 1922544469 is active (record last updated 2017-01-09).

How do I verify Margaret Szydlak's NPI record?

Cross-check NPI 1922544469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-09.