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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Matthew S Chen, CPO

Prosthetist in Pleasanton, CA · enumerated 2025 · practices at Capstone Orthopedic, Inc..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1124991336

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Registry record

Entity type Individual (Type 1)
Name Matthew S Chen
Credential CPO
Sex Male
Practice address Pleasanton, CA, 94588
Phone (925) 930-7700
Fax (925) 930-7609
Enumeration date Sep 24, 2025
Last updated in NPPES Sep 24, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

222Z00000X Orthotist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
224P00000X Prosthetist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

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.

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Frequently asked questions

What is the NPI number for Matthew Chen?
The National Provider Identifier (NPI) for Matthew Chen is 1124991336, a Type 1 (individual) record in the CMS NPPES registry.
Where does Matthew Chen practice?
The practice location on file with NPPES is in Pleasanton, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-24.