Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aleksandr Gleyzer, MD

Emergency Medicine Physician in Brooklyn, NY · enumerated 2005.

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

National Provider Identifier

1417949165

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Registry record

Entity type Individual (Type 1)

Name Aleksandr Gleyzer

Credential MD

Sex Male

Practice address 445 Lenox Rd, Brooklyn, NY, 11203

Phone (718) 245-4790

Enumeration date Aug 18, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 214448-1 (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
02182098	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 Aleksandr Gleyzer practice?

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

What is the NPI number for Aleksandr Gleyzer?

The National Provider Identifier (NPI) for Aleksandr Gleyzer is 1417949165, 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 2007-07-08.