Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Cynthia Y Huang, OD
Optometrist in San Mateo, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538771068
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Cynthia Y Huang
Credential OD
Sex Female
Practice address 224 26th Ave, San Mateo, CA, 94403
Phone (650) 430-2609
Enumeration date Aug 17, 2020
Last updated in NPPES Aug 17, 2020
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 Cynthia Huang?
Cynthia Huang 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-17.