Physician profile
An Yen
NPI 1750488649
$1,415.54
in general payments reported to CMS, 2019-2025
19 companies · $214 in 2025
The $214 reported for 2025 was less than what a typical Procedural Dermatology provider received nationally (typical 2025 total: $599).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $557 · 2020: $13.88 · 2022: $24.41 · 2023: $347 · 2024: $259 · 2025: $214.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $821.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $820.66 |
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. | $228.80 | 2019-2025 | Otezla, Otezla |
| Pfizer INC. | $190.34 | 2023-2025 | |
| Abbvie INC. | $185.35 | 2019-2023 | Rinvoq |
| Dermavant Sciences, INC. | $116.47 | 2023-2024 | Vtama |
| Regeneron Healthcare Solutions, INC. | $110.98 | 2019-2024 | Dupixent |
| Janssen Scientific Affairs, LLC | $100.56 | 2019 | |
| Novartis Pharmaceuticals Corporation | $89.37 | 2019-2025 | |
| Janssen Biotech, INC. | $62.51 | 2019-2023 | Tremfya |
| Biotronik INC. | $53.78 | 2019 | |
| Incyte Corporation | $53.02 | 2022-2023 | Opzelura |
| Genzyme Corporation | $52.44 | 2023-2024 | |
| Leo Pharma INC. | $43.28 | 2019-2023 | Adbry |
| Lilly USA, LLC | $29.92 | 2023 | Taltz, Olumiant |
| Sun Pharmaceutical Industries INC. | $19.80 | 2019 | |
| Organon LLC | $18.68 | 2025 | Vtama |
Show all 19 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Ucb, INC. | $18.24 | 2024 | Bimzelx |
| Celgene Corporation | $17.08 | 2019 | |
| Glaxosmithkline, LLC. | $13.46 | 2019 | |
| Helsinn Therapeutics (U.S.), INC. | $11.46 | 2019 |
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 An Yen 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.
Share this page
Keep an eye on this page
Get an email when the next June refresh changes this page. No account needed.
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.