GlassScriptPhysician profile
Allison L Chan
NPI 1841458668
$2,545.11
in general payments reported to CMS, 2019-2025
26 companies · $436 in 2025
The $436 reported for 2025 was more than what a typical Internal Medicine provider received nationally (typical 2025 total: $156).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $825 · 2020: $68.41 · 2021: $103 · 2022: $331 · 2023: $302 · 2024: $480 · 2025: $436.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,218.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,218.30 |
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 |
|---|---|---|---|
| Glaxosmithkline, LLC. | $345.31 | 2019-2025 | Bexsero, Arexvy, Shingrix |
| Novo Nordisk INC | $284.52 | 2019-2025 | Ozempic, Rybelsus, Wegovy |
| Verrica Pharmaceuticals INC. | $243.19 | 2023-2024 | Ycanth |
| Astrazeneca Pharmaceuticals LP | $231.32 | 2019-2025 | Airsupra |
| Boehringer Ingelheim Pharmaceuticals, INC. | $198.50 | 2019-2024 | Jardiance |
| Amgen INC. | $191.92 | 2019-2025 | Evenity, Otezla, Repatha |
| Lilly USA, LLC | $143.88 | 2019-2025 | Mounjaro, Jardiance, Zepbound |
| Novartis Pharmaceuticals Corporation | $139.18 | 2019-2022 | |
| Sanofi-Aventis U.S. LLC | $117.58 | 2019-2024 | |
| Dermira, INC. | $86.47 | 2019 | |
| Astellas Pharma US INC | $71.97 | 2019-2025 | Veozah |
| Merck Sharp & Dohme LLC | $63.80 | 2019-2025 | Capvaxive, Gardasil 9, Gardasil |
| Endo Pharmaceuticals INC. | $59.65 | 2019 | |
| Pfizer INC. | $56.39 | 2022-2025 | |
| Abbott Laboratories | $55.85 | 2019-2023 | Freestyle Libre 3 |
Show all 26 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Exact Sciences Corporation | $44.46 | 2023-2024 | Cologuard Collection Kit |
| Dexcom, INC. | $42.04 | 2022-2023 | Dexcom G6 Transmitter |
| Medtronic, INC. | $38.44 | 2022-2025 | Inceptiv |
| Dynavax Technologies Corporation | $25.35 | 2025 | Heplisav-B |
| Medtronic Vascular, INC. | $17.49 | 2019 | |
| Daiichi Sankyo INC. | $15.35 | 2019 | |
| Roche Diagnostics Corporation | $15.01 | 2019 | |
| Teva Pharmaceuticals USA, INC. | $15.00 | 2019 | |
| Janssen Pharmaceuticals, INC | $14.98 | 2019 | |
| Nalpropion Pharmaceuticals LLC | $14.72 | 2019 | |
| Idorsia Pharmaceuticals US INC | $12.74 | 2022 |
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 Allison 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.