Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Alain Hong Nguyen, O.D.
Optometrist in Bakersfield, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1962458869
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Registry record
Entity type Individual (Type 1)
Name Dr. Alain Hong Nguyen
Credential O.D.
Sex Male
Practice address 3800 Niles St, Suite 2, Bakersfield, CA, 93306
Phone (661) 871-7770
Fax (661) 871-7177
Enumeration date May 25, 2006
Last updated in NPPES Feb 19, 2008
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 |
|---|---|---|---|
| SD0115000 | 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
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.
What specialty is Alain Nguyen?
Alain Nguyen 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-19.