NPI Portal NPI Lookup & Verification

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

Dr. Tom Francis Mihok, O.D.

Optometrist in Oakdale, CA · enumerated 2005.

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

National Provider Identifier

1952394959

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Tom Francis Mihok
Credential O.D.
Sex Male
Practice address Oakdale, CA, 95361
Fax (209) 847-1405
Enumeration date Aug 24, 2005
Last updated in NPPES May 14, 2013

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 5908T (CA) Primary
156FX1800X Optician Eye and Vision Services Providers · License 5908T (CA) Secondary
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
SD0059080 Medicaid CA -
2216 Other CA MEDICAL EYE SERVICES
MI67356 Other CA CLARITY VISION
919432 Other CA EYEMED VISION
45584 Other CA SAFEGUARD

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.

Read the full guide → Validate an NPI →

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 Tom Mihok?
Tom Mihok 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-05-14.