Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Chiann-Wen Yang, O.D.
Optometrist in San Jose, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053430553
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Registry record
Entity type Individual (Type 1)
Name Dr. Chiann-Wen Yang
Credential O.D.
Sex Female
Practice address 5630 Cottle Road, Located Inside Target, San Jose, CA, 95123
Phone (408) 227-1681
Fax (408) 227-1681
Enumeration date Mar 28, 2007
Last updated in NPPES Mar 29, 2014
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 208254 | Other | CA | EYEMED |
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
Is NPI 1053430553 active?
Yes, as of the latest NPPES snapshot, NPI 1053430553 is active (record last updated 2014-03-29).
How do I verify Chiann-Wen Yang's NPI record?
Cross-check NPI 1053430553 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-29.