Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret A Sitnik, FNP

Nurse Practitioner in East Syracuse, NY · enumerated 2005.

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

National Provider Identifier

1457357923

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Registry record

Entity type Individual (Type 1)

Name Margaret A Sitnik

Credential FNP

Sex Female

Practice address 5008 Brittonfield Pkwy, Suite 700, East Syracuse, NY, 13057

Phone (315) 472-7504

Fax (315) 479-8639

Enumeration date Jun 21, 2005

Last updated in NPPES Aug 3, 2018

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F332609 (NY) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
02107528	Medicaid	NY	-

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Margaret Sitnik?

Margaret Sitnik is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-03.