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Mr. William Mastalerz, PT

Physical Therapist in Franklin, TN · enumerated 2006.

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

National Provider Identifier

1316903552

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Registry record

Entity type Individual (Type 1)
Name Mr. William Mastalerz
Credential PT
Sex Male
Practice address 2001 Mallory Ln Ste 201, Franklin, TN, 37067
Phone (615) 771-0134
Fax (615) 771-8816
Enumeration date Apr 25, 2006
Last updated in NPPES Aug 30, 2021

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT 2044 (TN) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2044 (TN) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

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 William Mastalerz?
The National Provider Identifier (NPI) for William Mastalerz is 1316903552, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Mastalerz practice?
The practice location on file with NPPES is in Franklin, TN. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-30.