Physician profile
Yan Sun
NPI 1083909238
$1,654.30
in general payments reported to CMS, 2019-2025
29 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,190 · 2020: $183 · 2021: $52.74 · 2022: $91.51 · 2023: $138.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $138.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $137.53 |
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 |
|---|---|---|---|
| Amgen INC. | $202.66 | 2019-2020 | |
| Novo Nordisk INC | $194.22 | 2019-2023 | Wegovy |
| Astrazeneca Pharmaceuticals Lp | $192.32 | 2019-2023 | Farxiga |
| Sunovion Pharmaceuticals INC. | $152.84 | 2019-2020 | |
| Lilly USA, LLC | $97.55 | 2019-2023 | Mounjaro |
| Sanofi-Aventis U.S. LLC | $89.05 | 2019-2020 | |
| Janssen Pharmaceuticals, INC | $88.13 | 2019-2021 | |
| Amarin Pharma, INC. | $78.78 | 2019 | |
| Glaxosmithkline, LLC. | $64.38 | 2019-2022 | |
| Dynavax Technologies Corporation | $55.84 | 2022-2023 | Heplisav-B |
| Arbor Pharmaceuticals, INC. | $49.65 | 2019 | |
| Pfizer INC. | $45.19 | 2019-2023 | |
| Abbott Laboratories | $39.45 | 2022-2023 | Freestyle Libre 3 |
| Abbvie INC. | $36.14 | 2019 | |
| Kowa Pharmaceuticals America, INC. | $26.78 | 2019 |
Show all 29 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Merck Sharp & Dohme LLC | $26.75 | 2019 | |
| Sanofi Pasteur INC. | $26.42 | 2019 | |
| Exact Sciences Corporation | $23.39 | 2023 | Cologuard Collection Kit |
| Avanir Pharmaceuticals, INC. | $22.72 | 2019 | |
| Medtronic Minimed, INC. | $20.45 | 2020 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $16.85 | 2019 | |
| Takeda Pharmaceuticals U.S.A., INC. | $14.92 | 2019 | |
| Genentech USA, INC. | $14.64 | 2021 | |
| Astellas Pharma US INC | $13.97 | 2019 | |
| Shire North American Group INC | $13.42 | 2019 | |
| Ironwood Pharmaceuticals, INC | $12.73 | 2020 | |
| Novartis Pharmaceuticals Corporation | $12.31 | 2020 | |
| Allergan, INC. | $11.59 | 2019 | |
| Circassia INC. | $11.16 | 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 Yan Sun 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.