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Irwin L. Schwartz, MD, PC

Pediatric Adolescent Medicine Physician in Setauket, NY · enumerated 2006 · authorized official Irwin Schwartz, Owner.

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

National Provider Identifier

1548233414

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Registry record

Entity type Organization (Type 2)
Legal business name Irwin L. Schwartz, MD, PC
Practice address 200 Main St, Suite 6, Setauket, NY, 11733
Phone (631) 751-7676
Fax (631) 751-1152
Enumeration date Feb 9, 2006
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

2080A0000X Pediatric Adolescent Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Irwin Schwartz
Title Owner
Phone (631) 751-7676

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.

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Frequently asked questions

What is the NPI number for Irwin L. Schwartz, MD, PC?
The NPI for Irwin L. Schwartz, MD, PC is 1548233414, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Irwin L. Schwartz, MD, PC?
NPPES lists Irwin Schwartz (Owner) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.