NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Nassau Open Mri PC

Diagnostic Radiology Physician in Westbury, NY · enumerated 2018 · authorized official Eliezer Offenbacher, MD.

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

National Provider Identifier

1851878409

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Nassau Open Mri PC
Practice address 1570 Old Country Rd, Westbury, NY, 11590
Enumeration date Jul 26, 2018
Last updated in NPPES Nov 15, 2018

Taxonomy & classification

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 147975 Primary

Authorized official

Name Eliezer Offenbacher
Title MD

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

What type of organization is Nassau Open Mri PC?
Nassau Open Mri PC is registered in NPPES as a Diagnostic Radiology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-15.