Physician profile
Thomas D Callahan
NPI 1043328123
$4,526.29
in general payments reported to CMS, 2019-2025
46 companies · $564 in 2025
The $564 reported for 2025 was more than what 76% of Family Medicine providers received nationally (typical 2025 total: $153).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $751 · 2020: $567 · 2021: $685 · 2022: $830 · 2023: $592 · 2024: $537 · 2025: $564.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,693.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,693.11 |
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 |
|---|---|---|---|
| Abbvie INC. | $785.45 | 2019-2025 | Ubrelvy, Linzess, Viberzi |
| Novo Nordisk INC | $409.01 | 2019-2025 | Rybelsus, Ozempic |
| Novartis Pharmaceuticals Corporation | $351.98 | 2020-2025 | |
| Pfizer INC. | $286.94 | 2019-2025 | |
| Amgen INC. | $263.53 | 2019-2025 | Repatha, Evenity, Krystexxa |
| Janssen Pharmaceuticals, INC | $238.54 | 2019-2023 | Spravato |
| Boehringer Ingelheim Pharmaceuticals, INC. | $187.83 | 2020-2025 | Jardiance, Synjardy |
| Lilly USA, LLC | $187.40 | 2019-2025 | Mounjaro, Jardiance, Emgality |
| Merck Sharp & Dohme LLC | $149.44 | 2019-2024 | Gardasil 9, Vaxelis, Gardasil |
| Astrazeneca Pharmaceuticals LP | $147.27 | 2019-2020 | |
| Boston Scientific Corporation | $137.50 | 2021-2025 | General - Pain Management, Watchman Flx |
| Otsuka America Pharmaceutical, INC. | $104.93 | 2019-2025 | Rexulti |
| Abbott Laboratories | $93.05 | 2019-2023 | Freestyle Libre 2 |
| Nestle Healthcare Nutrition INC. | $82.54 | 2022 | |
| Upsher-Smith Laboratories LLC | $72.19 | 2020-2021 |
Show all 46 companies
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 Thomas Callahan 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.