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Kay-Won Chang

Cardiovascular Disease Physician in Dublin, CA · enumerated 2015 · practices at Webster Orthopaedic Medical Group, A Professional Corp..

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

National Provider Identifier

1205213410

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Registry record

Entity type Individual (Type 1)
Name Kay-Won Chang
Sex Male
Practice address 4000 Dublin Blvd, 3rd Floor, Dublin, CA, 94568
Phone (510) 498-2178
Enumeration date Apr 27, 2015
Last updated in NPPES Aug 25, 2021

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License A144085 (CA) 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 specialty is Kay-Won Chang?
Kay-Won Chang is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-25.