RxDoctor Payments Data

Lawrence Chao, MD

Cornea and External Diseases Specialist · Irvine, CANPI 1700812997

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $31,285 of the $36,062 with a category attached, or 86.8%. Alcon accounts for 80.8% of it on its own, with 12 other manufacturers making up the rest. 2025 is the largest year on record at $16,470, more than ten times the $1,152 reported in 2019.

$36,062in general payments, 2019–2025

Across 90 payments — averaging $400.69 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Alcon$29K
  • Rxsight Inc$3K
  • Alcon Research LLC$3K
  • Stryker$210
  • Bausch & Lomb, A Division Of Bausch Health US, LLC$176
  • Kala Pharmaceuticals, Inc.$120
  • plus $324 from 7 others
$70,000in research payments, 2019–2025

Across 1 payment — averaging $70,000 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.

  • Alcon Research LLC$70K

What the payments were for

  • Consulting fees$31,28587%
  • Travel & lodging$1,3444%
  • Food & beverage$3,4149%
  • Gifts$190%

General payments by program year

19
20
21
22
23
24
25

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

$36,062 in reported general payments places this provider in the 85th percentile of 50 cornea and external diseases specialist providers in California.

See all cornea and external diseases specialist providers in California

Medicare billing

Part B allowed, 2024
$333,920
Medicare patients
952
Services billed
1,934

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
RestasisCyclosporine70$65,679
Cyclosporine51$27,730
Lotemax SmLoteprednol Etabonate105$26,595
MieboPerfluorohexyloctane/Pf15$15,587
ZirganGanciclovir11$6,036
Ketorolac Tromethamine207$4,395
Ofloxacin209$2,007
Acyclovir16$1,621
Brimonidine Tartrate13$380

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$31$65,67970 claims
Bausch & Lomb, A Division Of Bausch Health US, LLCLotemax Sm$176$26,595105 claims
Bausch & Lomb Americas Inc.Miebo, Zirgan$114$21,62226 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 85th percentile of 50 cornea and external diseases specialist providers in California.

Other cornea and external diseases specialist in Irvine

See the full list for California

Where these figures come from

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