Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Kalman Zabirowicz, O.D.
Optometrist in East Islip, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124099148
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Registry record
Entity type Individual (Type 1)
Name Dr. Kalman Zabirowicz
Credential O.D.
Sex Male
Practice address 369 E Main St, Suite 6, East Islip, NY, 11730
Phone (631) 224-4834
Fax (631) 277-7325
Enumeration date Jan 28, 2006
Last updated in NPPES Aug 13, 2019
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 412167012 | Other | NY | VISION SERVICE PLAN |
| 3795886 | Other | NY | AETNA PROVIDER NUMBER |
| 50499 | Other | NY | DAVIS VISION PROVIDER NO |
| KZ0C411H10 | Other | NY | EMPIRE BC BS PIN |
| 3213843 | Other | NY | CIGNA PPO OAP |
| P00253979 | Other | NY | RAILROAD MEDICARE |
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
How do I verify Kalman Zabirowicz's NPI record?
Cross-check NPI 1124099148 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1124099148 active?
Yes, as of the latest NPPES snapshot, NPI 1124099148 is active (record last updated 2019-08-13).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-08-13.