Allen Chung, OD
Optometrist · San Diego, CANPI 1003301391
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $7,074 of the $8,947 with a category attached, or 79.1%. It is spread thinly across 21 manufacturers, the largest accounting for just 16.8% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2024 at $2,959 and has fallen 64.3% since, to $1,055 in 2025. 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.
Across 116 payments — averaging $77.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Topcon Healthcare, Inc.$2K
- Bausch & Lomb Americas Inc.$1K
- Bausch & Lomb, A Division Of Bausch Health US, LLC$1K
- Coopervision Inc.$1K
- Alcon$844
- Optos, Inc.$444
- plus $2K from 15 others
What the payments were for
- Consulting fees$1,50017%
- Food & beverage$7,07479%
- Gifts$400%
- Entertainment$3334%
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 |
|---|---|---|
| Topcon Healthcare, Inc. | 1 | $1,500 |
| Bausch & Lomb Americas Inc. | 18 | $1,454 |
| Bausch & Lomb, A Division Of Bausch Health US, LLC | 15 | $1,363 |
| Coopervision Inc. | 40 | $1,290 |
| Alcon | 9 | $844 |
| Optos, Inc. | 5 | $444 |
| Biotissue Holdings Inc. | 6 | $313 |
| Maculogix, Inc. | 3 | $236 |
| LKC Technologies, Inc. | 2 | $232 |
| Sun Pharmaceutical Industries Inc. | 3 | $190 |
| Oculus, Inc. | 1 | $190 |
| Lumenis BE Inc | 1 | $188 |
| Glaukos Corporation | 1 | $151 |
| AbbVie(2 entities) | 3 | $148 |
| Lombart Brothers, Inc. | 1 | $104 |
| Rxsight Inc | 1 | $92 |
| Tarsus Pharmaceuticals, Inc. | 2 | $74 |
| ABB Con-cise Optical Group LLC | 1 | $67 |
| Sight Sciences, Inc. | 1 | $27 |
| Optovue, Inc. | 1 | $21 |
| Carl Zeiss Meditec AG | 1 | $19 |
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.
- INFUSE$1,207
- PANORAMIC OPHTHALMOSCOPE$666
- OCT OPHTHALMOSCOPE$666
- NFC-700$333
- ULTRA$314
- MIEBO$272
- DAILIES$271
- BIOTRUE ONE DAY$227
- AdaptDx$213
- BIOTRUE$212
- OCULUS Keratograph 5M$190
- optilight$188
- ULTRA MULTIFOCAL TORIC$150
- XIIDRA$150
- Wavelight Refractive Suite$140
- MyDay Contact Lens$127
- INFUSE SVS$124
- Prokera$122
- AmnioGraft$122
- CEQUA$120
How this compares
$8,947 in reported general payments places this provider in the 95th percentile of 6,778 optometrist providers in California.
Medicare billing
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.
Other optometrist in San Diego
- Jason TuSan Diego$351K
- Alicia LauSan Diego$300K
- Melody TavakoliSan Diego$267K
- Brian ChouSan Diego$243K
- David GeffenSan Diego$144K
- Elliott ShapiroSan Diego$135K
- Keith WanSan Diego$87K
- Jennifer ChinnSan Diego$67K
- Steve YoelinNewport Beach$4.1M
- Matthew GellerSpring Valley$3.5M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.