Has Mark Chung received payments from drug or device companies?

Yes. Drug and device makers reported $17,438 in general payments to Mark Chung across 216 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Mark Chung did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Mark Chung come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Mark Chung

Optometrist · West Hollywood, CANPI 1841316833

Payments from drug & device makers

What this record shows

Almost everything reported here is food and beverage — 99.7% of the total across 216 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 10 manufacturers reported payments, led by Alcon at 32.4% of the total. Among optometrist clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$17,438in general payments, 2019–2025

Across 216 payments — averaging $80.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Alcon$6K
Coopervision Inc.$4K
Glaukos Corporation$3K
Johnson & Johnson Vision Care, Inc.$2K
Bausch & Lomb, A Division Of Bausch Health US, LLC$1K
ABB Con-cise Optical Group LLC$672
plus $506 from 4 others

What the payments were for

Food & beverage$17,385100%
Entertainment$530%

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

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.

Company	Payments	Total
Alcon	62	$5,649
Coopervision Inc.	61	$4,417
Glaukos Corporation	21	$2,632
Johnson & Johnson Vision Care, Inc.	35	$2,348
Bausch & Lomb, A Division Of Bausch Health US, LLC	11	$1,216
ABB Con-cise Optical Group LLC	17	$672
AbbVie(2 entities)	6	$230
Amgen	1	$125
Staar Surgical Company	1	$98
Optos, Inc.	1	$53

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

$17,438 in reported general payments places this provider in the 95th percentile of 6,778 optometrist providers in California.

See all optometrist providers in California →

Other optometrist in West Hollywood

Danielle RichardsonWest Hollywood$151K
Steve YoelinNewport Beach$4.1M
Matthew GellerSpring Valley$3.5M
Melissa EricksonDavis$522K
Omid KhodaiLake Forest$499K
Jason TuSan Diego$351K
Scott SchachterPismo Beach$312K
Alicia LauSan Diego$300K
Vin DangBakersfield$284K
Steven FerrucciSepulveda$272K

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Identity: NPPES NPI Registry, July 2026.

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