NPPES file of Aug 9, 2026

Jason C. Griffith, O.D.

Optometrist · Thousand Oaks, CA

Jason C. Griffith, O.D. is an optometrist with a practice address in Thousand Oaks, California, and NPI 1154309789, issued on Jan 4, 2006. Check the license (California 11638T, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154309789
Name
Jason C. Griffith
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
11638T CA
Self-reported in NPPES; status is on the state search
Practice location
140 W Hillcrest Dr, Thousand Oaks, CA 91360
Phone
(805) 497-6964
Enumerated
Jan 4, 2006
Record last updated
May 27, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 140 W Hillcrest Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stacy Hamlet, O.D.Optometrist1730167354

Verify Jason C. Griffith in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 11638T
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Industry payments in 2024: $221.36

4 payments; by number, the most common kind was food and beverage; the largest payer was Optos, Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jason Griffith$221.36
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Jason C. Griffith among 8,308 optometrist records in California

Jason C. Griffith, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 66% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2008 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

19 optometrist records list a practice address in Thousand Oaks

They are 19 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Lisa Fontaine, O.DThousand Oaks, CA 913601134341944
  2. Rachel Gannam, ODThousand Oaks, CA 913601073528949
  3. Stacy Hamlet, O.D.Thousand Oaks, CA 913601730167354
  4. Glenn Kawaguchi, O.D.Thousand Oaks, CA 913601275727992
  5. Jeffrey Kubo, O.D.Thousand Oaks, CA 913601215071824
  6. Andrew Marinkovich, O.D.Thousand Oaks, CA 913601649321225
  7. Pegah Raven, ODThousand Oaks, CA 913601447560388
  8. Dan Rieder, O.D.Thousand Oaks, CA 913601316028012

Common questions

What is Jason C. Griffith, O.D.'s NPI number?

Jason C. Griffith, O.D.'s National Provider Identifier (NPI) is 1154309789, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jason C. Griffith, O.D. located?

The NPPES record lists a practice address at 140 W Hillcrest Dr, Thousand Oaks, CA, 91360. Phone: (805) 497-6964. Providers update this record themselves, so call before visiting.

How can I verify Jason C. Griffith, O.D.'s license?

NPPES lists California license number 11638T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.