Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

William J. Schwarz, PT of Commack LLC

Organization Physical Therapist · NPI 1407036783

William J. Schwarz, PT of Commack LLC provides Physical Therapist services in Massapequa, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

5700 Merrick Rd
Massapequa, NY 11758-6221 Not confirmed with CMS for 13 years — call before visiting
Phone: (516) 798-9605
Fax: (516) 798-9373
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 014995 (NY)

Record details

NPI number1407036783
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Jennifer Steo — Office Manager · (516) 798-9605
NPI enumeratedNovember 5, 2007
Last updated in NPPESJuly 3, 2013
Mailing address5700 Merrick Rd, Massapequa, NY 11758-6221

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