Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northwell

Q: What is the NPI number for Northwell?

The NPI for Northwell is 1376903351, a Type 2 (organization) record in the CMS NPPES registry.

General Acute Care Hospital in New Hyde Park, NY · enumerated 2016 · authorized official Lauren Leonardo, Practice Admin Manager.

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

National Provider Identifier

1376903351

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Registry record

Entity type Organization (Type 2)

Legal business name Northwell

Practice address 450 Lakeville Rd, Department of Surgical Oncology, New Hyde Park, NY, 11042

Phone (516) 487-9454

Enumeration date Mar 3, 2016

Last updated in NPPES Mar 3, 2016

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities · License 240304 (NY) Secondary

282N00000X General Acute Care Hospital Hospitals · License 240304 (NY) Primary

Authorized official

Name Lauren Leonardo

Title Practice Admin Manager

Phone (516) 941-1251

Other identifiers

Identifier	Type	State	Issuer
02912843	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 Northwell?

NPPES lists Lauren Leonardo (Practice Admin Manager) as the authorized official for this organization.

What is the NPI number for Northwell?

The NPI for Northwell is 1376903351, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-03.