Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chaim Isaharov

Optician in Valley Stream, NY · enumerated 2024 · practices at Glasses Guy 18inc.

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

National Provider Identifier

1841033172

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Registry record

Entity type Individual (Type 1)

Name Chaim Isaharov

Sex Male

Practice address Valley Stream, NY, 11580

Phone (516) 341-0485

Enumeration date Jun 14, 2024

Last updated in NPPES Jul 12, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License P127564 (NY) Primary

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

How do I verify Chaim Isaharov's NPI record?

Cross-check NPI 1841033172 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1841033172 active?

Yes, as of the latest NPPES snapshot, NPI 1841033172 is active (record last updated 2024-07-12).

Other providers at this practice address

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Glasses Guy 18inc Optometrist · Valley Stream, NY NPI 1194616813

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-12.