Physician profile
Ellen Koo
NPI 1528220878
$12,914.34
in general payments reported to CMS, 2019-2025
9 companies · $11K in 2025
The $11K reported for 2025 was more than what 95% of Ophthalmology providers received nationally (typical 2025 total: $384).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2020: $27.81 · 2021: $367 · 2022: $453 · 2023: $615 · 2024: $157 · 2025: $11K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $8,925 · Travel and Lodging: $1,803 · Food and Beverage: $1,338.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $8,925.00 |
| Travel and Lodging | $1,803.36 |
| Food and Beverage | $1,337.72 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Glaukos Corporation | $11,294.57 | 2025 | Epioxa, Travoprost Intraocular Implant - Idose, Photrexa Viscous and Photrexa |
| Alcon Vision LLC | $547.74 | 2021-2023 | Clareon |
| Bausch & Lomb Americas INC. | $279.28 | 2022-2023 | Stellaris, Ic-8 Apthera Iol |
| Biotissue Holdings INC. | $269.11 | 2023 | |
| Johnson & Johnson Surgical Vision, INC. | $239.47 | 2020-2024 | Tecnis Simplicity |
| Kala Pharmaceuticals, INC. | $136.07 | 2021 | |
| Bausch & Lomb, A Division of Bausch Health US, LLC | $94.37 | 2021 | |
| Dompe US, INC. | $38.21 | 2020-2024 | Oxervate |
| Eagle Pharmaceuticals, INC. | $15.52 | 2023 |
Drugs and devices associated with these payments
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Ellen Koo listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.