Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Armstrong, PT
Physical Therapist in Milford, CT · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1104997345
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Registry record
Entity type Individual (Type 1)
Name John Armstrong
Credential PT
Sex Male
Practice address 670 Boston Post Rd, Milford, CT, 06460
Phone (203) 783-1997
Fax (203) 783-3997
Enumeration date Nov 10, 2006
Last updated in NPPES Jan 19, 2018
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 007954 (CT) 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 Armstrong practice?
The practice location on file with NPPES is in Milford, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Armstrong?
The National Provider Identifier (NPI) for John Armstrong is 1104997345, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-19.