Physician profile
May-May Chan
NPI 1669515169
$2,584.48
in general payments reported to CMS, 2019-2025
11 companies · $303 in 2025
The $303 reported for 2025 was more than what a typical Optometrist provider received nationally (typical 2025 total: $204).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,783 · 2020: $35.25 · 2021: $36.64 · 2022: $22.13 · 2023: $137 · 2024: $268 · 2025: $303.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $708.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $707.74 |
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 |
|---|---|---|---|
| Alcon Vision LLC | $1,751.85 | 2019-2025 | Precision7, Dailies Total1 |
| Coopervision INC. | $184.62 | 2019-2025 | Myday Contact Lens |
| Johnson & Johnson Vision Care, INC. | $182.97 | 2021-2024 | Acuvue |
| Bausch & Lomb Americas INC. | $160.90 | 2023-2025 | Infuse, Biotrue One Day |
| Sun Pharmaceutical Industries INC. | $69.86 | 2019 | |
| Glaukos Corporation | $65.14 | 2019 | |
| Dompe US, INC. | $59.22 | 2024 | Oxervate |
| Bausch & Lomb, A Division of Bausch Health US, LLC | $41.08 | 2019 | |
| Mallinckrodt Hospital Products INC. | $27.31 | 2025 | Acthar |
| Abbvie INC. | $22.13 | 2022 | |
| Carl Zeiss Meditec Ag | $19.40 | 2020 |
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 May-May Chan 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.