RxDoctor Payments Data

David Kamen, MD

Ophthalmology · Los Angeles, CANPI 1992706345

Payments from drug & device makers

$257in general payments, 2019–2025

Across 7 payments — averaging $36.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Alcon$143
  • Dompe US, Inc.$31
  • AbbVie$27
  • Sight Sciences, Inc.$22
  • Aerie Pharmaceuticals, Inc.$20
  • Eyevance Pharmaceuticals LLC$15

What the payments were for

  • Food & beverage$257100%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

19
21
23

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

How this compares

$257 in reported general payments places this provider in the 20th percentile of 2,513 ophthalmology providers in California.

See all ophthalmology providers in California

Medicare billing

Part B allowed, 2024
$535,749
Medicare patients
797
Services billed
4,427

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

DrugClaimsCost to plans & patients
RestasisCyclosporine140$86,080
LumiganBimatoprost164$59,493
Cyclosporine70$22,292
ProlensaBromfenac Sodium56$19,180
XiidraLifitegrast14$9,512
Prednisolone Acetate233$8,986
Timolol Maleate140$8,567
CombiganBrimonidine Tartrate/Timolol25$7,520
VyzultaLatanoprostene Bunod19$7,111
Olopatadine Hcl25$6,052
Bromfenac Sodium27$5,260
IlevroNepafenac14$5,116
Brimonidine Tartrate37$4,376
AlrexLoteprednol Etabonate13$4,347
MoxifloxacinMoxifloxacin Hcl204$3,640

Paid to pharmacies, not to this prescriber.

Companies that both paid and supply prescribed drugs

These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.

CompanyPaid to this providerPart D cost of their drugs
AbbVieRestasis, Lumigan, Combigan$27$153,093329 claims
AlconSimbrinza$143$2,56311 claims

Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 20th percentile of 2,513 ophthalmology providers in California.

Other ophthalmology in Los Angeles

See the full list for California

Where these figures come from

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