GlassScriptPhysician profile
Louis Chang
NPI 1235265364
$18,442.02
in general payments reported to CMS, 2019-2025
10 companies · $77.29 in 2025
The $77.29 reported for 2025 was less than what a typical Neurological Surgery provider received nationally (typical 2025 total: $604).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,954 · 2020: $1,187 · 2021: $2,557 · 2022: $5,329 · 2023: $6,805 · 2024: $533 · 2025: $77.29.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $4,000 · Travel and Lodging: $2,785 · Food and Beverage: $478 · Entertainment: $152.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $4,000.00 |
| Travel and Lodging | $2,784.83 |
| Food and Beverage | $478.39 |
| Entertainment | $152.37 |
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 |
|---|---|---|---|
| Nuvasive, INC. | $10,129.27 | 2019-2023 | Xlif, Maxcess, Modulus |
| Globus Medical, INC. | $6,172.10 | 2022-2024 | Excelsiusgps Robotic Navigation System |
| Boston Scientific Corporation | $966.86 | 2019-2023 | Wavewriter Alpha Prime 16 |
| Zimmer Biomet Holdings, INC. | $452.33 | 2019-2021 | |
| Medtronic, INC. | $254.41 | 2021-2025 | Inceptiv |
| Microvention, INC. | $117.07 | 2021 | |
| Depuy Synthes Sales INC. | $116.77 | 2019 | |
| Nevro Corp. | $101.43 | 2022 | |
| Medtronic USA, INC. | $100.01 | 2020 | |
| Orthofix Medical, INC. | $31.77 | 2020-2023 | Cervical-Stim, Spinal-Stim, Physio-Stim |
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 Louis 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.