NPPES file of Aug 9, 2026

Daniel Leon Kornberg, M.D.

Ophthalmology Physician · Los Angeles, CA

Daniel Leon Kornberg, M.D. is an ophthalmology physician with a practice address in Los Angeles, California, and NPI 1922462043, issued on Apr 6, 2016. Check the license (California A168361, as entered in NPPES) on the Medical Board of California; 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
1922462043
Name
Daniel Leon Kornberg
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A168361 CA
Self-reported in NPPES; status is on the state search
Practice location
100 Stein Plz, Los Angeles, CA 90095
Phone
(310) 825-3090
Enumerated
Apr 6, 2016
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200512002105); 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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8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →

Also registered at 100 Stein Plz

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

  1. Diana Abrahamyan, ODOptometrist1538834932
  2. Diego AriasOphthalmology Physician1346998093
  3. Reginald Ariyasu, MDOphthalmology Physician1285654939
  4. William Astle, MDOphthalmology Physician1700808276
  5. Adrian Au, MDRetina Specialist (Ophthalmology) Physician1124482450
  6. Saghar Bagheri, MDGlaucoma Specialist (Ophthalmology) Physician1821627399

Verify Daniel Leon Kornberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A168361    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
Open the California license search

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25% more Medicare Part D claims than the average ophthalmology physician in 2024

1,901 Medicare Part D claims for 515 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Daniel Kornberg1,901
  2. Specialty average1,518

Most prescribed

  1. Latanoprost672 claims
  2. Cyclosporine312 claims
  3. Dorzolamide-Timolol226 claims
  4. Brimonidine Tartrate201 claims
  5. Prednisolone Acetate167 claims
  6. Timolol Maleate101 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.

Industry payments in 2024: $20.12

1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Daniel Kornberg$20.12
  2. Specialty average$4,535.02

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. 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).

Daniel Leon Kornberg among 2,899 ophthalmology physician records in California

Daniel Leon Kornberg, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 86% of them.

  • NPI issued2016 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2016 · median 2001 among the 1,907 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 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

All 2,899 in California → Every provider in Los Angeles → Ophthalmology Physician nationwide →

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Reginald Ariyasu, MDLos Angeles, CA 900951285654939
  2. Anthony Arnold, MDLos Angeles, CA 900951629098314
  3. William Astle, MDLos Angeles, CA 900951700808276
  4. John Bartlett, MDLos Angeles, CA 900951144242611
  5. Katherine Bergwerk, MDLos Angeles, CA 900951952323941
  6. Joseph Caprioli, MDLos Angeles, CA 900951417979584
  7. Sophie Deng, M.D.Los Angeles, CA 900951194775890
  8. Michael Gorin, MDLos Angeles, CA 900951578536462

Common questions

What is Daniel Leon Kornberg, M.D.'s NPI number?

Daniel Leon Kornberg, M.D.'s National Provider Identifier (NPI) is 1922462043, issued on Apr 6, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Leon Kornberg, M.D. located?

The NPPES record lists a practice address at 100 Stein Plz, Los Angeles, CA, 90095. Phone: (310) 825-3090. Providers update this record themselves, so call before visiting.

How can I verify Daniel Leon Kornberg, M.D.'s license?

NPPES lists California license number A168361, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Daniel Leon Kornberg, M.D. prescribe under Medicare Part D?

In 2024, Daniel Leon Kornberg, M.D. had 1,901 Medicare Part D claims for 515 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.