GlassScriptPhysician profile
Alfredo Lee Chang
NPI 1689944407
$5,442.41
in general payments reported to CMS, 2019-2025
25 companies · $1,544 in 2025
The $1,544 reported for 2025 was more than what 84% of Critical Care Medicine (Internal Medicine) providers received nationally (typical 2025 total: $189).
See the full distribution for Critical Care Medicine (Internal Medicine)
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $224 · 2020: $285 · 2021: $373 · 2022: $1,060 · 2023: $781 · 2024: $1,175 · 2025: $1,544.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $3,500.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $3,500.02 |
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. | $1,756.34 | 2019-2025 | Nucala, Trelegy Ellipta, Shingrix |
| Astrazeneca Pharmaceuticals LP | $943.05 | 2019-2025 | Breztri, Airsupra, Bevespi Aerosphere |
| Boehringer Ingelheim Pharmaceuticals, INC. | $600.75 | 2019-2025 | Ofev, Jascayd |
| Merck Sharp & Dohme LLC | $332.32 | 2020-2025 | Winrevair, Zerbaxa, Dificid |
| Actelion Pharmaceuticals US, INC. | $326.29 | 2021-2025 | Opsumit, Uptravi |
| Genzyme Corporation | $298.20 | 2022-2025 | |
| Regeneron Healthcare Solutions, INC. | $171.02 | 2022-2024 | Dupixent |
| Verona Pharma, INC. | $142.70 | 2025 | Ohtuvayre |
| Mylan Specialty L.P. | $133.77 | 2019-2024 | Yupelri |
| Intuitive Surgical, INC. | $132.48 | 2023 | Da Vinci Surgical System |
| Electromed, INC. | $97.06 | 2024-2025 | Smartvest |
| United Therapeutics Corporation | $87.61 | 2024-2025 | Tyvaso, Orenitram |
| Viatris Specialty LLC | $83.54 | 2025 | Yupelri |
| Shionogi INC | $52.94 | 2023-2024 | Fetroja |
| Harmony Biosciences LLC | $48.64 | 2022 |
Show all 25 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Pulmonx Corporation | $44.28 | 2022-2025 | Zephyr Endobronchial Valve, Chartis Catheter, Pulmonx Chartis Tablet Console |
| Baxter Healthcare | $37.57 | 2023-2024 | Hillrom - Life 2000 Ventilation System, Hillrom - Vest System Model 105 Home Care |
| Philips North America LLC | $24.75 | 2024 | (Ak6) Vest Therapy |
| Janssen Pharmaceuticals, INC | $21.74 | 2022 | |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $20.00 | 2020 | |
| Genentech USA, INC. | $19.87 | 2021 | |
| Sanofi Pasteur INC. | $19.62 | 2024 | |
| Mayne Pharma Commercial LLC | $16.65 | 2021 | |
| Mallinckrodt Hospital Products INC. | $16.65 | 2022 | |
| Amgen INC. | $14.57 | 2025 | Tezspire |
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 Alfredo Lee 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.