Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Adam R Leith, PT, DPT, ATC
Physical Therapist in Nashua, NH · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1447739990
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Registry record
Entity type Individual (Type 1)
Name Dr. Adam R Leith
Credential PT, DPT, ATC
Sex Male
Practice address 522 Amherst St Ste 23, Nashua, NH, 03063
Phone (603) 880-0448
Enumeration date Aug 7, 2018
Last updated in NPPES Sep 12, 2021
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 4388 (NH) 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.
Frequently asked questions
What is the NPI number for Adam Leith?
The National Provider Identifier (NPI) for Adam Leith is 1447739990, a Type 1 (individual) record in the CMS NPPES registry.
Where does Adam Leith practice?
The practice location on file with NPPES is in Nashua, NH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Amanda Langer Occupational Therapist · Nashua, NH NPI 1740682186 Caroline Lombardi Physical Therapist · Nashua, NH NPI 1912394164 Kevin Cwiklik Physical Therapist · Nashua, NH NPI 1093189755 Amanda Ruggiero Occupational Therapist · Nashua, NH NPI 1891452769 Kayla Horton Hayden Occupational Therapist · Nashua, NH NPI 1174244057 Megan Dimler Speech-Language Pathologist · Nashua, NH NPI 1558086504 Morgan Jenkins Occupational Therapist · Nashua, NH NPI 1700655776 Rebecca Corbett Occupational Therapist · Nashua, NH NPI 1578438867
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-12.