Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Crystal Dinh, OD
Optometrist in San Gabriel, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1629544044
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Registry record
Entity type Individual (Type 1)
Name Dr. Crystal Dinh
Credential OD
Sex Female
Practice address 140 W Valley Blvd Ste 115, San Gabriel, CA, 91776
Phone (626) 288-8023
Enumeration date Oct 23, 2018
Last updated in NPPES Jul 29, 2019
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD credential
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 specialty is Crystal Dinh?
Crystal Dinh is registered in NPPES with the primary taxonomy of Optometrist. 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.
Other providers at this practice address
Browse all → Ping Ye Optometrist · San Gabriel, CA NPI 1497778211 Jia Lao Optometrist · San Gabriel, CA NPI 1598965568 Cindy Chou Optometrist · San Gabriel, CA NPI 1982853537 Jennifer Chen Optometrist · San Gabriel, CA NPI 1649570375 Eric Leung Optometrist · San Gabriel, CA NPI 1992310106 Grace Huynh Optometrist · San Gabriel, CA NPI 1417563149
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-29.