Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Winthrop University Hospital

Q: What type of organization is Winthrop University Hospital?

Winthrop University Hospital is registered in NPPES as a Children's Hospital (its primary provider taxonomy).

Children's Hospital in Mineola, NY · enumerated 2010 · authorized official Warren Rosenfeld, Chairman.

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

National Provider Identifier

1821309691

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Registry record

Entity type Organization (Type 2)

Legal business name Winthrop University Hospital

Practice address 58 6th Ave, Mineola, NY, 11501

Phone (516) 457-5258

Enumeration date Jun 27, 2010

Last updated in NPPES Jun 27, 2010

Taxonomy & classification

282NC2000X Children's Hospital Hospitals Primary

Authorized official

Name Warren Rosenfeld

Title Chairman

Phone (516) 663-8443

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 Winthrop University Hospital?

Winthrop University Hospital is registered in NPPES as a Children's Hospital (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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-27.