Physician profile
Jan P Kamler
NPI 1093791824
$124,051.39
in general payments reported to CMS, 2019-2025
34 companies · $17K in 2025
The $17K reported for 2025 was more than what 94% of Gastroenterology (Internal Medicine) providers received nationally (typical 2025 total: $636).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $31K · 2020: $41K · 2021: $447 · 2022: $9,592 · 2023: $5,763 · 2024: $19K · 2025: $17K.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Royalty Or License: $39K · Food and Beverage: $2,191 · Education: $15.40.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Royalty Or License | $39,332.39 |
| Food and Beverage | $2,191.46 |
| Education | $15.40 |
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 |
|---|---|---|---|
| Micro-Tech Endoscopy USA, INC. | $119,259.49 | 2019-2025 | |
| Abbvie INC. | $1,710.53 | 2019-2025 | |
| Janssen Biotech, INC. | $507.56 | 2019-2025 | Tremfya, Stelara |
| Intercept Pharmaceuticals, INC. | $419.11 | 2019-2024 | Ocaliva |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $309.40 | 2019-2023 | Xifaxan |
| Takeda Pharmaceuticals U.S.A., INC. | $219.06 | 2019-2024 | Entyvio |
| Janssen Scientific Affairs, LLC | $216.40 | 2020-2022 | |
| Ipsen Biopharmaceuticals, INC | $179.37 | 2024-2025 | Iqirvo |
| Gilead Sciences, INC. | $158.45 | 2019-2024 | |
| Redhill Biopharma INC. | $115.71 | 2021-2022 | |
| Merck Sharp & Dohme LLC | $84.16 | 2019-2023 | Dificid |
| Cook Medical LLC | $78.86 | 2019 | |
| Braintree Laboratories, INC. | $67.71 | 2019-2025 | Sutab, Suflave |
| E.R. Squibb & Sons, L.L.C. | $66.85 | 2022 | |
| Regeneron Healthcare Solutions, INC. | $60.65 | 2022-2025 | Dupixent |
Show all 34 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Pfizer INC. | $57.18 | 2019-2020 | |
| Qol Medical, LLC | $52.75 | 2019-2023 | Sucraid |
| Ironwood Pharmaceuticals, INC | $46.42 | 2019-2021 | |
| Celgene Corporation | $45.12 | 2021-2023 | Zeposia |
| Exact Sciences Corporation | $43.02 | 2023-2024 | Cologuard Collection Kit |
| Daiichi Sankyo INC. | $42.81 | 2021-2022 | |
| Ardelyx, INC. | $35.76 | 2023-2025 | Ibsrela |
| Romark Laboratories, Lc | $35.64 | 2019 | |
| Madrigal Pharmaceuticals | $30.25 | 2025 | Rezdiffra |
| Genzyme Corporation | $30.23 | 2025 | |
| Celltrion USA INC. | $28.88 | 2024-2025 | Zymfentra, Vegzelma |
| Allergan, INC. | $28.81 | 2019 | |
| Phathom Pharmaceuticals, INC. | $28.76 | 2025 | Voquezna |
| Olympus America INC. | $22.08 | 2022 | |
| Endo Pharmaceuticals INC. | $15.09 | 2019 | |
| Nestle Healthcare Nutrition INC. | $14.70 | 2022 | |
| Vivus LLC | $14.63 | 2021 | |
| Medtronic, INC. | $13.11 | 2024 | Gi Genius |
| Ferring Pharmaceuticals INC. | $12.84 | 2021 |
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 Jan Kamler 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.