Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alexandra Reznikov, M.D.

Neurology Physician in Brooklyn, NY · enumerated 2006.

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

National Provider Identifier

1568421345

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Registry record

Entity type Individual (Type 1)

Name Dr. Alexandra Reznikov

Credential M.D.

Sex Female

Practice address 450 Clarkson Ave, Suite A, Brooklyn, NY, 11203

Phone (718) 270-2430

Fax (718) 270-3840

Enumeration date Mar 21, 2006

Last updated in NPPES May 20, 2009

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 238867-1 (NY) Primary

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

Where does Alexandra Reznikov 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 Alexandra Reznikov?

The National Provider Identifier (NPI) for Alexandra Reznikov is 1568421345, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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David Landman Infectious Disease Physician · Brooklyn, NY NPI 1700888013 Richard Macchia Urology Physician · Brooklyn, NY NPI 1720082282 Joseph Chirayil Emergency Medicine Physician · Brooklyn, NY NPI 1023000916 Lourdes Abrigo Anesthesiology Physician · Brooklyn, NY NPI 1932192333 Alexandru Apostol Anesthesiology Physician · Brooklyn, NY NPI 1275526691 Lisa Amendolia Anesthesiology Physician · Brooklyn, NY NPI 1619960028 Allen Coopersmith Anesthesiology Physician · Brooklyn, NY NPI 1538153978 James Cottrell Anesthesiology Physician · Brooklyn, NY NPI 1528052966

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-20.