NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Michael K. Kobayashi, O.D.

Optometrist in Sun City, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1750353496

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Registry record

Entity type Individual (Type 1)
Name Michael K. Kobayashi
Credential O.D.
Sex Male
Practice address Sun City, CA, 92586
Fax (951) 672-4083
Enumeration date Feb 6, 2006
Last updated in NPPES Jun 20, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OPT 11070T (CA) Primary
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
ZZZ81412Z Medicaid CA -
9V14069 Other - IEHP
9V13134 Other CA I.E.H.P.

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.

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Frequently asked questions

How do I verify Michael Kobayashi's NPI record?
Cross-check NPI 1750353496 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1750353496 active?
Yes, as of the latest NPPES snapshot, NPI 1750353496 is active (record last updated 2012-06-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-20.