GlassScriptPhysician profile
Byung Don Ahn
NPI 1194715193
$8,044.63
in general payments reported to CMS, 2019-2025
32 companies · $1,128 in 2025
The $1,128 reported for 2025 was more than what a typical Cardiovascular Disease provider received nationally (typical 2025 total: $433).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,295 · 2020: $1,203 · 2021: $1,434 · 2022: $976 · 2023: $1,043 · 2024: $967 · 2025: $1,128.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $3,122 · Entertainment: $15.19.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $3,122.21 |
| Entertainment | $15.19 |
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 |
|---|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $1,011.15 | 2019-2025 | Lifevest |
| Amgen INC. | $997.65 | 2019-2025 | Repatha, Repatha |
| Novartis Pharmaceuticals Corporation | $990.89 | 2019-2025 | |
| Janssen Pharmaceuticals, INC | $814.95 | 2019-2024 | Xarelto |
| Medtronic, INC. | $693.00 | 2021-2025 | Micra, Onyx Frontier, Symplicity G3 |
| Merck Sharp & Dohme LLC | $517.50 | 2021-2025 | Verquvo, Capvaxive |
| Sanofi-Aventis U.S. LLC | $346.14 | 2019-2024 | |
| Boston Scientific Corporation | $302.98 | 2021-2025 | General - Therapies, Lux-Dx Insertable Cardiac Monitor |
| Amarin Pharma, INC. | $297.23 | 2019-2021 | |
| Zoll Circulation INC | $260.25 | 2020 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | $252.78 | 2019-2025 | Jardiance |
| Abiomed | $230.19 | 2019 | |
| Pfizer INC. | $227.38 | 2019-2025 | |
| Abbott Laboratories | $182.11 | 2021-2025 | Gallant, Coroflow |
| Medtronic Vascular, INC. | $129.88 | 2019-2020 |
Show all 32 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Artivion, INC. | $123.62 | 2022 | |
| E.R. Squibb & Sons, L.L.C. | $112.42 | 2019-2022 | |
| Astrazeneca Pharmaceuticals LP | $97.00 | 2020-2021 | |
| Regeneron Healthcare Solutions, INC. | $91.90 | 2019 | |
| Esperion Therapeutics, INC. | $68.58 | 2020-2021 | |
| Lexicon Pharmaceuticals, INC. | $57.65 | 2023 | Inpefa |
| Cathworks, INC. | $47.04 | 2019-2020 | |
| Teleflex LLC | $30.74 | 2023 | Guideliner |
| Scpharmaceuticals INC. | $23.18 | 2024 | |
| Cardinal Health 200 LLC | $21.78 | 2019 | |
| Kiniksa Pharmaceuticals, LTD. | $21.61 | 2022 | |
| Altathera Pharmaceuticals LLC | $20.52 | 2025 | Sotalol Hydrochloride |
| Cleerly, INC. | $18.70 | 2025 | Cleerly Ischemia, Cleerly Labs |
| Tactile Systems Technology INC | $15.54 | 2020 | |
| Opsens INC. | $15.19 | 2023 | Optowire |
| Chiesi USA, INC. | $13.63 | 2025 | Kengreal |
| W. L. Gore & Associates, INC. | $11.45 | 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 Byung Ahn 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.