GlassScriptPhysician profile
Andrew H Chang
NPI 1326171489
$1,307.56
in general payments reported to CMS, 2019-2025
7 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2020: $216 · 2021: $213 · 2022: $125 · 2023: $558 · 2024: $195.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Travel and Lodging: $442 · Food and Beverage: $311.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Travel and Lodging | $441.90 |
| Food and Beverage | $311.04 |
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 |
|---|---|---|---|
| Stryker Corporation | $541.66 | 2023 | Scopis Ent, Clarifix Cryotherapy Device |
| Guerbet LLC | $216.48 | 2020 | |
| Abbott Laboratories | $213.14 | 2021 | |
| Neurent Medical Limited | $169.30 | 2024 | Neuromark Device, Neuromark Radiofrequency Console |
| Bayer Healthcare Pharmaceuticals INC. | $125.00 | 2022 | |
| Boston Scientific Corporation | $25.33 | 2024 | |
| Sumitomo Pharma America, INC. | $16.65 | 2023 | Gemtesa |
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 Andrew Chang 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.