Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Igor A Laskowski, MD, PHD
Vascular Surgery Physician in Valhalla, NY · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336268382
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| A100000178 | Other | NY | MEDICARE GROUP PTAN |
| P00421092 | Other | NY | RAIL ROAD MEDICARE |
| 1N45433641 | Other | NY | PTAN |
| 1N4543K223 | Other | NY | PTAN |
| 1336268382 | Other | NY | NPI |
| 1N4543K221 | Other | NY | PTAN |
| 02897010 | Medicaid | NY | - |
| A400035484 | Other | NY | MEDICARE INDIVIDUAL PTAN |
| 1N4543K222 | Other | NY | PTAN |
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.
Frequently asked questions
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-18.