NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Island Diagnostic Imaging Associates

Radiology Clinic/Center in Massapequa, NY · enumerated 2006 · authorized official Steven Peyser, Medical Director.

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

National Provider Identifier

1619943495

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Island Diagnostic Imaging Associates
Practice address 4160 Merrick Rd, Massapequa, NY, 11758
Phone (516) 797-6700
Fax (516) 797-8463
Enumeration date Feb 23, 2006
Last updated in NPPES Jan 21, 2010

Taxonomy & classification

261QR0200X Radiology Clinic/Center Ambulatory Health Care Facilities · License 29022743 (NY) Primary

Authorized official

Name Steven Peyser
Title Medical Director
Phone (516) 797-6700

Other identifiers

Identifier Type State Issuer
02255443 Medicaid NY -

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 Island Diagnostic Imaging Associates?
NPPES lists Steven Peyser (Medical Director) as the authorized official for this organization.
What is the NPI number for Island Diagnostic Imaging Associates?
The NPI for Island Diagnostic Imaging Associates is 1619943495, 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 2010-01-21.