NPI Portal NPI Lookup & Verification

John Warren, CP

John Warren is a Prosthetist provider (Prosthetist) practicing in Framingham, MA, registered in the NPPES registry with NPI 1770671539 since 2006.

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NPI 1770671539
Entity type Individual (Type 1)
Name John Warren
Credential CP
Sex Male
Practice address 20 SPEEN ST STE 102, Framingham, MA, 01701
Phone 5712893922
Enumeration date 2006-10-10
Last updated in NPPES 2026-01-02

Taxonomy & licenses

Taxonomy code Specialty Primary License State
224P00000X Prosthetist Primary
Copy-ready billing details
Provider: John Warren, CP
NPI: 1770671539
Taxonomy: 224P00000X (Prosthetist)
Address: 20 SPEEN ST STE 102, Framingham, MA, 01701

Other providers at this practice address

NPI Name Type Specialty Location
1760208722 Thelos Pt LLC Organization Physical Therapy Clinic/Center Framingham, MA
1891651402 Bright Innovations LLC Organization Prosthetic/Orthotic Supplier Framingham, MA

Verify this record

Cross-check NPI 1770671539 against the authoritative CMS record: view John Warren on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 John Warren?
John Warren is registered in NPPES with the primary taxonomy of Prosthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-01-02.