Physician profile
Patrick C Chang
NPI 1912009705
$4,727.56
in general payments reported to CMS, 2019-2025
22 companies · $415 in 2025
The $415 reported for 2025 was more than what a typical Family Medicine provider received nationally (typical 2025 total: $153).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,136 · 2020: $232 · 2021: $1,178 · 2022: $783 · 2023: $353 · 2024: $632 · 2025: $415.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,399.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,399.26 |
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 |
|---|---|---|---|
| Astrazeneca Pharmaceuticals Lp | $949.72 | 2020-2025 | Airsupra, Breztri |
| Amgen INC. | $834.15 | 2019-2025 | Evenity, Repatha, Otezla |
| Glaxosmithkline, LLC. | $755.18 | 2021-2024 | Arexvy, Trelegy Ellipta |
| Sunovion Pharmaceuticals INC. | $302.75 | 2019-2021 | |
| Bayer Healthcare Pharmaceuticals INC. | $233.69 | 2022 | |
| Abbvie INC. | $137.53 | 2021-2022 | |
| Jazz Pharmaceuticals INC. | $130.00 | 2021 | |
| Dexcom, INC. | $125.52 | 2021 | |
| Nestle Healthcare Nutrition INC. | $125.00 | 2021 | |
| Urovant Sciences INC | $125.00 | 2022 | |
| Novo Nordisk INC | $120.15 | 2019 | |
| Biohaven Pharmaceuticals, INC. | $110.58 | 2021 | |
| Astellas Pharma US INC | $109.83 | 2019 | |
| Boston Scientific Corporation | $108.29 | 2022-2025 | Varithena Administration Pack |
| Allergan, INC. | $95.05 | 2020 |
Show all 22 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | $88.45 | 2020 | |
| Lilly USA, LLC | $77.95 | 2019 | |
| Medtronic Vascular, INC. | $54.77 | 2019 | |
| Indivior INC. | $53.74 | 2019 | |
| Exact Sciences Corporation | $21.78 | 2025 | Cologuard Collection Kit |
| Hikma Pharmaceuticals USA | $21.00 | 2022 | |
| Orexo US, INC. | $11.17 | 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 Patrick 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.