Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Patrick Larkin, PT
Physical Therapist in Weymouth, MA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1861306813
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Registry record
Entity type Individual (Type 1)
Name John Patrick Larkin
Credential PT
Sex Male
Practice address 544 Main St, Weymouth, MA, 02190
Phone (401) 433-4172
Fax (401) 433-0612
Enumeration date Sep 29, 2026
Last updated in NPPES Sep 29, 2026
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTL90067 (MA) 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
Where does John Larkin practice?
The practice location on file with NPPES is in Weymouth, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Larkin?
The National Provider Identifier (NPI) for John Larkin is 1861306813, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-29.