Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alison M Mason, PT
Physical Therapist in Leeds, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124117221
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Registry record
Entity type Individual (Type 1)
Name Alison M Mason
Credential PT
Sex Female
Practice address 349 Haydenville Rd, Leeds, MA, 01053
Phone (413) 586-7700
Fax (413) 586-8137
Enumeration date Oct 12, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 8000 (MA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0319813 | Medicaid | MA | - |
| Y67500 | Other | MA | BC/BS |
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
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Alison Mason?
Alison Mason is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Linda Manor Nursing, LLC Skilled Nursing Facility · Leeds, MA NPI 1629108055 Suzanne Mccolgan Physical Therapy Assistant · Leeds, MA NPI 1659497063 Curtis Lizotte Physical Therapy Assistant · Leeds, MA NPI 1043336308 Jeanne Lally Speech-Language Pathologist · Leeds, MA NPI 1013130046 Leida Barman Speech-Language Pathologist · Leeds, MA NPI 1912102237 Jeanne Previty Physical Therapist · Leeds, MA NPI 1437358140 Cheryl Boucakis Occupational Therapist · Leeds, MA NPI 1689874224 Rebecca Hill Physical Therapy Assistant · Leeds, MA NPI 1669664223
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.