Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. James Francis Gurniak, M.D.

Internal Medicine Physician in West Nyack, NY · enumerated 2007.

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

National Provider Identifier

1851420897

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Registry record

Entity type Individual (Type 1)

Name Dr. James Francis Gurniak

Credential M.D.

Sex Male

Practice address 2244 Palisades Center Dr, West Nyack, NY, 10994

Phone (845) 358-7828

Enumeration date Mar 5, 2007

Last updated in NPPES Mar 4, 2015

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 187070 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01644499	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does James Gurniak practice?

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

What is the NPI number for James Gurniak?

The National Provider Identifier (NPI) for James Gurniak is 1851420897, 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 2015-03-04.