Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Kozower, M.D.

Gastroenterology Physician in Williamsville, NY · enumerated 2005.

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

National Provider Identifier

1396721551

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Registry record

Entity type Individual (Type 1)

Name Michael Kozower

Credential M.D.

Sex Male

Practice address 60 Maple Rd, Ste 1, Williamsville, NY, 14221

Phone (716) 626-5250

Fax (716) 332-2218

Enumeration date Dec 20, 2005

Last updated in NPPES Dec 9, 2013

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 103470 (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
00614122	Medicaid	NY	-
040426000384	Other	NY	FIDELIS
2400515	Other	NY	GHI
00010094701	Other	NY	UNIVERA
2300577	Other	NY	INDEPENDENT HEALTH
100012917	Other	NY	RAILROAD MEDICARE
153008BT	Other	NY	PREFERRED CARE
000506316001	Other	NY	BLUE CROSS OG WNY
4273559	Other	NY	AETNA

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 Michael Kozower?

Michael Kozower is registered in NPPES with the primary taxonomy of Gastroenterology Physician. 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 2013-12-09.