Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Isaak Greenstein
Optician in Dallas, TX · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780008094
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Registry record
Entity type Individual (Type 1)
Name Isaak Greenstein
Sex Male
Practice address 10636 Garland Rd, Dallas, TX, 75218
Phone (214) 328-4397
Enumeration date Feb 6, 2014
Last updated in NPPES Feb 6, 2014
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1013015262 | Medicaid | TX | - |
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 Isaak Greenstein's NPI record?
Cross-check NPI 1780008094 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1780008094 active?
Yes, as of the latest NPPES snapshot, NPI 1780008094 is active (record last updated 2014-02-06).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-06.