NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory Leszek & Associates Inc

Optometrist in Orlando, FL · enumerated 2012 · authorized official Gregory Leszek, President.

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

National Provider Identifier

1265777189

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gregory Leszek & Associates Inc
Practice address 3461 E Colonial Dr, Suite A, Orlando, FL, 32803
Enumeration date Dec 4, 2012
Last updated in NPPES Dec 4, 2012

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License 3854 (FL) Primary

Authorized official

Name Gregory Leszek
Title President

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

Who is the authorized official for Gregory Leszek & Associates Inc?
NPPES lists Gregory Leszek (President) as the authorized official for this organization.
What is the NPI number for Gregory Leszek & Associates Inc?
The NPI for Gregory Leszek & Associates Inc is 1265777189, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-04.