Physician profile
Christopher C Hamann
NPI 1790704054
$4,033.42
in general payments reported to CMS, 2019-2025
35 companies · $1,051 in 2025
The $1,051 reported for 2025 was more than what 81% of Medical providers received nationally (typical 2025 total: $213).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2021: $17.20 · 2022: $1,070 · 2023: $1,099 · 2024: $797 · 2025: $1,051.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,947.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,946.54 |
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 |
|---|---|---|---|
| Sumitomo Pharma America, INC. | $741.31 | 2023-2025 | Gemtesa, Orgovyx |
| Janssen Biotech, INC. | $450.93 | 2022-2025 | Erleada |
| Astellas Pharma US INC | $253.73 | 2022-2025 | Xtandi |
| Antares Pharma, INC. | $223.97 | 2022-2025 | Xyosted, Nocdurna, Tlando |
| Urovant Sciences INC | $177.08 | 2022 | |
| Tolmar, INC. | $172.09 | 2023-2025 | Eligard, Jatenzo |
| Olympus America INC. | $170.46 | 2023-2024 | Itind System |
| Coloplast Corp | $169.45 | 2022-2025 | Speedicath |
| Ferring Pharmaceuticals INC. | $158.42 | 2024-2025 | Adstiladrin |
| Pfizer INC. | $150.47 | 2022-2025 | |
| Myriad Genetic Laboratories, INC. | $137.52 | 2023 | Prolaris |
| Merck Sharp & Dohme LLC | $128.33 | 2022-2025 | Keytruda, Lynparza, Welireg |
| Procept Biorobotics Corporation | $123.31 | 2023 | Aquabeam Robotic System |
| Abbvie INC. | $121.05 | 2021-2025 | |
| Novo Nordisk INC | $107.57 | 2024-2025 | Rivfloza |
Show all 35 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Endo Pharmaceuticals INC. | $97.07 | 2022-2024 | Aveed, Edex, Xiaflex |
| Endo USA, INC. | $85.37 | 2024-2025 | Aveed, Xiaflex |
| Urogen Pharma, INC. | $76.53 | 2022-2023 | Jelmyto |
| Myovant Sciences INC. | $47.88 | 2022 | |
| 180 Medical, INC. | $46.71 | 2023 | Gentlecath Glide |
| Blue Earth Diagnostics | $41.89 | 2024 | |
| Bayer Healthcare Pharmaceuticals INC. | $41.63 | 2022-2025 | |
| Progenics Pharmaceuticals, INC. | $39.50 | 2022-2025 | |
| Medtronic, INC. | $35.68 | 2024 | Interstim |
| Tolmar Pharmaceuticals, INC. | $31.34 | 2022 | |
| Novartis Pharmaceuticals Corporation | $25.17 | 2022 | |
| Ethicon US, LLC | $25.04 | 2025 | Vistaseal |
| Baxter Healthcare | $24.38 | 2023 | Floseal |
| Immunitybio, INC. | $24.07 | 2025 | |
| Boston Scientific Corporation | $22.44 | 2022 | |
| Telix Pharmaceuticals | $19.69 | 2023 | Illuccix |
| Dendreon Pharmaceuticals LLC | $17.33 | 2024 | Provenge |
| Agiliti Surgical, INC. | $16.87 | 2023 | Sonablate, Soltive |
| Teleflex LLC | $16.30 | 2022 | |
| Accord Healthcare, INC. | $12.84 | 2023 |
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 Christopher Hamann 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.