Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Fayeen Tsai, O.D.
Optometrist in San Gabriel, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598792210
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Registry record
Entity type Individual (Type 1)
Name Dr. Fayeen Tsai
Credential O.D.
Sex Female
Practice address 140 W Valley Blvd, #115, San Gabriel, CA, 91776
Phone (626) 288-8023
Fax (626) 288-8023
Enumeration date Jun 27, 2006
Last updated in NPPES Jan 3, 2020
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 |
|---|---|---|---|
| SD0117670 | Medicaid | CA | - |
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
What is the NPI number for Fayeen Tsai?
The National Provider Identifier (NPI) for Fayeen Tsai is 1598792210, a Type 1 (individual) record in the CMS NPPES registry.
Where does Fayeen Tsai practice?
The practice location on file with NPPES is in San Gabriel, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Hsiao-Fen Chen MD Inc Family Medicine Physician · San Gabriel, CA NPI 1902844517 Hsiao- Fen Chen Family Medicine Physician · San Gabriel, CA NPI 1366483497 Golden San Gabriel Optometric Vision Center Optometrist · San Gabriel, CA NPI 1740216936 Jiyen Shin Optometrist · San Gabriel, CA NPI 1760411169 Christine Chen Optometrist · San Gabriel, CA NPI 1861709057 Jan Tung Optometrist · San Gabriel, CA NPI 1184979072 Julie Kao Optometrist · San Gabriel, CA NPI 1366798886 Maluk Enterprising Corporation Community/Retail Pharmacy · San Gabriel, CA NPI 1548502263
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-03.