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William J. Schwarz, P.T. of Commack LLC

Physical Therapist in Massapequa, NY · enumerated 2007 · authorized official Jennifer Steo, Office Manager.

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

National Provider Identifier

1407036783

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Registry record

Entity type Organization (Type 2)
Legal business name William J. Schwarz, P.T. of Commack LLC
Practice address 5700 Merrick Rd, Massapequa, NY, 11758
Phone (516) 798-9605
Fax (516) 798-9373
Enumeration date Nov 5, 2007
Last updated in NPPES Jul 3, 2013

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 014995 (NY) Primary

Authorized official

Name Jennifer Steo
Title Office Manager
Phone (516) 798-9605

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

Who is the authorized official for William J. Schwarz, P.T. of Commack LLC?
NPPES lists Jennifer Steo (Office Manager) as the authorized official for this organization.
What is the NPI number for William J. Schwarz, P.T. of Commack LLC?
The NPI for William J. Schwarz, P.T. of Commack LLC is 1407036783, 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 2013-07-03.