GlassScriptPhysician profile
Joseph Thomas Knapper
NPI 1174889661
$4,363.64
in general payments reported to CMS, 2019-2025
10 companies · $297 in 2025
The $297 reported for 2025 was less than what a typical Interventional Cardiology provider received nationally (typical 2025 total: $1,092).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $432 · 2020: $22.15 · 2021: $1,523 · 2022: $1,422 · 2023: $24.39 · 2024: $642 · 2025: $297.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $964.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $963.72 |
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 |
|---|---|---|---|
| Boston Scientific Corporation | $2,274.94 | 2019-2025 | Avvigo Guidance System, General - Balloon Catheters, Comet |
| Terumo Medical Corporation | $1,401.79 | 2022 | |
| Abbott Laboratories | $240.96 | 2019-2025 | Optis |
| Medtronic Vascular, INC. | $143.45 | 2019 | |
| Cardiovascular Systems INC. | $101.24 | 2019 | |
| Medtronic, INC. | $61.44 | 2021-2024 | Symplicity G3 |
| Abiomed | $60.76 | 2021-2025 | |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $41.67 | 2019-2020 | |
| Edwards Lifesciences Corporation | $24.39 | 2023 | Sapien 3 Ultra Resilia |
| Janssen Pharmaceuticals, INC | $13.00 | 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 Joseph Knapper 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.