NPPES file of Aug 9, 2026

Stephen Tester, OPTOMETRIST

Optometrist · Brea, CA

Stephen Tester, OPTOMETRIST is an optometrist with a practice address in Brea, California, and NPI 1710654421, issued on Aug 30, 2021. Check the license (California 34910, 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
1710654421
Name
Stephen Tester
Credential
OPTOMETRIST
Primary taxonomy
Optometrist 152W00000X
License number
34910 CA
Self-reported in NPPES; status is on the state search
Practice location
2063 Brea Mall # 200, Brea, CA 92821
Phone
(714) 674-5040
Enumerated
Aug 30, 2021
Record last updated
Aug 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20241223000776); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Stephen Tester 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 34910
    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: $1,025.85

21 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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. Stephen Tester$1,025.85
  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.

Bills Medicare through one group practice

  1. Gammoh Premier Vision LLCNorth Las Vegas, NV

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen Tester among 8,308 optometrist records in California

Stephen Tester, OPTOMETRIST 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 2021, is newer than 86% of them.

  • NPI issued2021 · 86% of these records are older, 11% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2019 · median 2008 among the 3,573 with a school on file
  • Record last updated2021 · 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).

26 optometrist records list a practice address in Brea

They are 26 of the 1,052 NPPES records with a practice address in Brea, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Diane Almanza, O.D.Brea, CA 928211790823839
  2. Vilma Carter, O.D.Brea, CA 928211902981343
  3. Isabell Choi-Siritaratiwat, ODBrea, CA 928211265514269
  4. Vinh Dang, O.D.Brea, CA 928211699746917
  5. Elaine Hse, O.D.Brea, CA 928211750431573
  6. Trinh Lien, O.D.Brea, CA 928211427108059
  7. Benjamin MarumotoBrea, CA 928211821134891
  8. Lisa Matsui, O.D.Brea, CA 928211366502981

Common questions

What is Stephen Tester, OPTOMETRIST's NPI number?

Stephen Tester, OPTOMETRIST's National Provider Identifier (NPI) is 1710654421, issued on Aug 30, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Tester, OPTOMETRIST located?

The NPPES record lists a practice address at 2063 Brea Mall # 200, Brea, CA, 92821. Phone: (714) 674-5040. Providers update this record themselves, so call before visiting.

How can I verify Stephen Tester, OPTOMETRIST's license?

NPPES lists California license number 34910, 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.