GlassScriptPhysician profile
Anthony Ning-Tai Chan
NPI 1285070235
$321.42
in general payments reported to CMS, 2019-2025
8 companies · $27.37 in 2025
The $27.37 reported for 2025 was less than what a typical Surgery provider received nationally (typical 2025 total: $281).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $31.51 · 2020: $129 · 2021: $118 · 2022: $15.98 · 2025: $27.37.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $27.37.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $27.37 |
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 |
|---|---|---|---|
| Redhill Biopharma INC. | $117.99 | 2021 | |
| Davol INC. | $73.53 | 2020 | |
| Merck Sharp & Dohme LLC | $31.09 | 2019-2020 | |
| Gilead Sciences, INC. | $27.37 | 2025 | |
| Abbvie INC. | $25.98 | 2020 | |
| Intuitive Surgical, INC. | $15.98 | 2022 | |
| Mannkind Corporation | $15.84 | 2019 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $13.64 | 2020 |
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Anthony 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.