GlassScriptPhysician profile
Michael T Chang
NPI 1720432016
$1,283.83
in general payments reported to CMS, 2019-2025
9 companies · $372 in 2025
The $372 reported for 2025 was more than what a typical Otolaryngology provider received nationally (typical 2025 total: $317).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2020: $20.52 · 2021: $74.61 · 2022: $633 · 2024: $183 · 2025: $372.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $537 · Travel and Lodging: $18.43.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $537.02 |
| Travel and Lodging | $18.43 |
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 | $421.29 | 2021-2025 | Core, Na, Scopis Ent |
| Medtronic, INC. | $365.67 | 2022-2025 | Propel, Stealthstation S8 Platform |
| Aerin Medical INC. | $162.18 | 2022 | |
| Glaxosmithkline, LLC. | $98.77 | 2022 | |
| Integra Lifesciences Corporation | $83.33 | 2025 | Trudi Probe, Relieva Spinplus Nav, Inspira Air |
| Cook Medical LLC | $69.14 | 2021-2022 | |
| Astrazeneca Pharmaceuticals LP | $39.27 | 2025 | Tezspire |
| Depuy Synthes Sales INC. | $23.66 | 2022 | |
| Medtronic USA, INC. | $20.52 | 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 Michael 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.