NPPES file of Aug 9, 2026

Diana Hirota, O.D.

Optometrist · Los Angeles, CA

Diana Hirota, O.D. is an optometrist with a practice address in Los Angeles, California, and NPI 1023449311, issued on Dec 11, 2013. Check the license (California OPT14822, 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
1023449311
Name
Diana Hirota
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OPT14822 CA
Self-reported in NPPES; status is on the state search
Practice location
221 Westwood Plz, Los Angeles, CA 90095
Phone
(310) 267-4772
Enumerated
Dec 11, 2013
Record last updated
Nov 30, 2016 (not updated in 10 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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8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 221 Westwood Plz

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

  1. Mark Ackerman, MDInternal Medicine Physician1144225046
  2. Fara Anzures, NPFamily Nurse Practitioner1659498640
  3. Clare Aveytia, RNRegistered Nurse1326893124
  4. Ronnie Bergen, MDNeurology Physician1750353488
  5. Miguel Bonoan, MSN, RN, PMHNP-BCCollege Health Registered Nurse1598510596
  6. Aileen Castillo, NPFamily Nurse Practitioner1265659056

Verify Diana Hirota 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 OPT14822    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: $192.39

2 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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. Diana Hirota$192.39
  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.

Diana Hirota among 8,308 optometrist records in California

Diana Hirota, 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 2013, is newer than 66% of them.

  • NPI issued2013 · 66% of these records are older, 32% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2016 · 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 Los Angeles → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Ava Bittner, O.D.Los Angeles, CA 900951457308793
  2. Tony Chan, ODLos Angeles, CA 900951952894487
  3. Lorraine Cheng, ODLos Angeles, CA 900951821624164
  4. Jonathan Christie, MDLos Angeles, CA 900951306857693
  5. Amanda Havens, O.D.Los Angeles, CA 900951083901409
  6. Linda Hwang, ODLos Angeles, CA 900951225439854
  7. Roxana KhorramiLos Angeles, CA 900951528476546
  8. Mark Emmanuel LandigLos Angeles, CA 900951689916520

Common questions

What is Diana Hirota, O.D.'s NPI number?

Diana Hirota, O.D.'s National Provider Identifier (NPI) is 1023449311, issued on Dec 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Diana Hirota, O.D. located?

The NPPES record lists a practice address at 221 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 267-4772. Providers update this record themselves, so call before visiting.

How can I verify Diana Hirota, O.D.'s license?

NPPES lists California license number OPT14822, 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.

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.