NPPES file of Aug 9, 2026

Billy Wang

Optometrist · North Hills, CA

Billy Wang is an optometrist with a practice address in North Hills, California, and NPI 1588205140, issued on Oct 4, 2019. Check the license (California 34662, 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
1588205140
Name
Billy Wang
Primary taxonomy
Optometrist 152W00000X
License number
34662 CA
Self-reported in NPPES; status is on the state search
Practice location
16111 Plummer St, North Hills, CA 91343
Phone
(818) 891-7711
Enumerated
Oct 4, 2019
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211222001049); 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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Also registered at 16111 Plummer St

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

  1. Sara AhdootStudent in an Organized Health Care Education/Training Program1225786981
  2. Cathy Alessi, M.D.Geriatric Medicine (Internal Medicine) Physician1134224983
  3. Allen AmirantPharmacotherapy Pharmacist1639273659
  4. Leann Arjona, MSWClinical Social Worker1376810036
  5. Jeffrey Asano, D.D.SDentist1245734334
  6. Rajnikant Bakhda, MDDiagnostic Radiology Physician1265539282

Verify Billy Wang 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 34662
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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30% fewer Medicare Part D claims than the average optometrist in 2024

194 Medicare Part D claims for 76 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.

  1. Billy Wang194
  2. Specialty average277

Most prescribed

  1. Latanoprost72 claims
  2. Cyclosporine41 claims
  3. Neomycin-Polymyxin-Dexameth17 claims
  4. Brimonidine Tartrate13 claims
  5. Fluorometholone12 claims
  6. Timolol Maleate12 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupPanorama City, CA

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

Billy Wang among 8,308 optometrist records in California

Billy Wang 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 2019, is newer than 81% of them.

  • NPI issued2019 · 81% of these records are older, 16% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2020 · 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).

Optometrist providers in California

There are 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. Oanh DuongSepulveda, CA 913431205531993
  2. Steven Ferrucci, ODSepulveda, CA 913431225053267
  3. Josephine Leung, ODNorth Hills, CA 913431194584284
  4. Jasmine Lynn, O.DSepulveda, CA 913431487158622
  5. Natasha MartinezNorth Hills, CA 913431245186642
  6. Paula Matsuno, O.D.North Hills, CA 913431407143290
  7. John Shan, O.D.North Hills, CA 913431184823221
  8. Stephanie ThaungNorth Hills, CA 913431942693700

Common questions

What is Billy Wang's NPI number?

Billy Wang's National Provider Identifier (NPI) is 1588205140, issued on Oct 4, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Billy Wang located?

The NPPES record lists a practice address at 16111 Plummer St, North Hills, CA, 91343. Phone: (818) 891-7711. Providers update this record themselves, so call before visiting.

How can I verify Billy Wang's license?

NPPES lists California license number 34662, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Billy Wang prescribe under Medicare Part D?

In 2024, Billy Wang had 194 Medicare Part D claims for 76 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.

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.