NPPES file of Aug 9, 2026

Eric Keoni Vierra, O.D.

Optometrist · Santa Rosa, CA

Eric Keoni Vierra, O.D. is an optometrist with a practice address in Santa Rosa, California, and NPI 1609042811, issued on May 7, 2008. Check the license (California 11547T, 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
1609042811
Name
Eric Keoni Vierra
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
11547T CA
Self-reported in NPPES; status is on the state search
Practice location
3925 Old Redwood Hwy, Santa Rosa, CA 95403
Phone
(707) 566-6060
Enumerated
May 7, 2008
Record last updated
Jan 3, 2022
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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8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 3925 Old Redwood Hwy

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

  1. Taghrid Abuelqasem, RPHPharmacist1285165902
  2. Phyllis Angelo, CPNPPediatric Nurse Practitioner1538234489
  3. Bhumika BhaktaPharmacist1922530153
  4. Lucille Brongersma, O.D.Optometrist1033266218
  5. Charlene Crockett, MDOphthalmology Physician1720379316
  6. Vanessa Desousa, D.O.Pediatrics Physician1922395979

Verify Eric Keoni Vierra 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 11547T    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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76% fewer Medicare Part D claims than the average optometrist in 2024

67 Medicare Part D claims for 32 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Eric Vierra67
  2. Specialty average277

Most prescribed

  1. Cyclosporine30 claims
  2. Latanoprost13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Eric Keoni Vierra among 8,308 optometrist records in California

Eric Keoni Vierra, 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 2008, is newer than 54% of them.

  • NPI issued2008 · 54% of these records are older, 43% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2022 · 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).

Optometrist providers in California

There are 8,308 optometrist records in California.

All 8,308 in California → Every provider in Santa Rosa → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Bruce Abramson, O.D.Santa Rosa, CA 954031841278124
  2. Lucille Brongersma, O.D.Santa Rosa, CA 954031033266218
  3. Valerie HansenSanta Rosa, CA 954031548313638
  4. James Harmon, O.D.Santa Rosa, CA 954031619032695
  5. Irene Hovland, O.D.Santa Rosa, CA 954031689728388
  6. Rose Kaw, O.D.Santa Rosa, CA 954031780737809
  7. Robert Kearns, O.D.Santa Rosa, CA 954031720137003
  8. Michaelmichael Lee, O.D.Santa Rosa, CA 954031497892574

Common questions

What is Eric Keoni Vierra, O.D.'s NPI number?

Eric Keoni Vierra, O.D.'s National Provider Identifier (NPI) is 1609042811, issued on May 7, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Eric Keoni Vierra, O.D. located?

The NPPES record lists a practice address at 3925 Old Redwood Hwy, Santa Rosa, CA, 95403. Phone: (707) 566-6060. Providers update this record themselves, so call before visiting.

How can I verify Eric Keoni Vierra, O.D.'s license?

NPPES lists California license number 11547T, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Eric Keoni Vierra, O.D. prescribe under Medicare Part D?

In 2024, Eric Keoni Vierra, O.D. had 67 Medicare Part D claims for 32 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.