GlassScriptPhysician profile
Khai Sheng Chang
NPI 1881665222
$5,818.14
in general payments reported to CMS, 2019-2025
51 companies · $908 in 2025
The $908 reported for 2025 was more than what 83% of Internal Medicine providers received nationally (typical 2025 total: $156).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $961 · 2020: $639 · 2021: $1,042 · 2022: $766 · 2023: $1,012 · 2024: $490 · 2025: $908.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,235 · Consulting Fee: $175.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,235.36 |
| Consulting Fee | $175.00 |
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 |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | $675.29 | 2019-2025 | |
| Glaxosmithkline, LLC. | $554.76 | 2019-2025 | Shingrix, Trelegy Ellipta, Arexvy |
| Astellas Pharma US INC | $447.32 | 2019-2023 | Myrbetriq |
| Amgen INC. | $428.89 | 2019-2025 | Prolia, Repatha, Otezla |
| Novo Nordisk INC | $356.18 | 2019-2025 | Ozempic, Rybelsus |
| Abbvie INC. | $312.79 | 2021-2025 | Ubrelvy |
| Janssen Pharmaceuticals, INC | $219.80 | 2019-2023 | Xarelto |
| Pfizer INC. | $215.61 | 2019-2025 | |
| Lilly USA, LLC | $187.21 | 2019-2025 | Mounjaro, Jardiance, Zepbound |
| Welch Allyn | $164.92 | 2021 | |
| Astrazeneca Pharmaceuticals LP | $164.53 | 2019-2025 | Farxiga, Breztri |
| Sunovion Pharmaceuticals INC. | $154.72 | 2021-2022 | |
| Teva Pharmaceuticals USA, INC. | $146.37 | 2023 | Austedo, Ajovy, Austedo Xr |
| Phathom Pharmaceuticals, INC. | $143.15 | 2024-2025 | Voquezna |
| Amarin Pharma, INC. | $140.07 | 2019-2022 |
Show all 51 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Sumitomo Pharma America, INC. | $139.83 | 2023-2025 | Gemtesa |
| Exact Sciences Corporation | $130.61 | 2023-2025 | Cologuard Collection Kit, The Cologuard Plus Collection Kit |
| Merck Sharp & Dohme LLC | $90.63 | 2022-2025 | Capvaxive, Pneumovax 23, Vaxneuvance |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $69.06 | 2024-2025 | Lifevest |
| Boston Scientific Corporation | $68.47 | 2023-2025 | Watchman Flx |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $60.92 | 2019-2020 | |
| Scilex Pharmaceuticals INC. | $57.10 | 2022-2023 | Ztlido |
| Ultragenyx Pharmaceutical INC. | $55.14 | 2020-2021 | |
| Esperion Therapeutics, INC. | $55.10 | 2020-2023 | Nexletol |
| Neurocrine Biosciences, INC. | $54.58 | 2022-2023 | Ingrezza |
| Sanofi Pasteur INC. | $54.43 | 2019-2023 | |
| Allergan, INC. | $52.43 | 2019-2020 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $51.00 | 2024-2025 | |
| Horizon Therapeutics Plc | $49.91 | 2019-2020 | |
| Supernus Pharmaceuticals, INC. | $41.20 | 2019 | |
| Biogen, INC. | $39.71 | 2021 | |
| Bayer Healthcare Pharmaceuticals INC. | $36.20 | 2022 | |
| Idorsia Pharmaceuticals US INC | $35.16 | 2022-2023 | Quviviq |
| Bioventus LLC | $34.06 | 2019-2024 | Durolane |
| Dexcom, INC. | $29.77 | 2021 | |
| Kowa Pharmaceuticals America, INC. | $26.25 | 2020-2022 | |
| Inspire Medical Systems, INC. | $24.76 | 2024 | Inspire |
| Arbor Pharmaceuticals, INC. | $24.38 | 2019 | |
| Smith+Nephew, INC. | $24.09 | 2023 | Collagenase Santyl |
| Eisai INC. | $21.88 | 2023 | |
| Cvrx, INC. | $21.48 | 2025 | Barostim Neo System |
| Baxter Healthcare | $20.06 | 2023 | Hillrom - Carnation Ambulatory Monitor |
| Penumbra, INC. | $19.34 | 2023 | Indigo System |
| Cequr Corporation | $17.16 | 2025 | Cequr Simplicity |
| Ge Healthcare | $15.45 | 2022 | |
| Mylan Specialty L.P. | $15.43 | 2021 | |
| Novavax INC | $15.16 | 2023 | Novavax Covid-19 Vaccine, Adjuvanted |
| Abbott Laboratories | $14.95 | 2024 | Freestyle Libre 3 |
| Millicent US INC | $14.26 | 2019 | |
| Xeris Pharmaceuticals, INC. | $13.29 | 2023 | Gvoke Hypopen |
| Valeritas, INC. | $13.28 | 2019 |
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 Khai 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.