Physician profile
Katherine Williamson
NPI 1134530546
$1,935.97
in general payments reported to CMS, 2019-2025
18 companies · none reported in 2025
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $1,675 · 2020: $89.40 · 2022: $54.11 · 2023: $64.95 · 2024: $52.19.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $117.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $117.14 |
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 |
|---|---|---|---|
| Intuitive Surgical, INC. | $1,316.42 | 2019 | |
| Abbvie INC. | $154.91 | 2019-2022 | |
| Hologic Sales and Service, LLC | $65.17 | 2020-2024 | Acessa Provu System |
| Therapeuticsmd, INC. | $45.79 | 2019 | |
| Novo Nordisk INC | $45.03 | 2019-2023 | Wegovy |
| Amag Pharmaceuticals, INC. | $37.41 | 2019 | |
| Takeda Pharmaceuticals U.S.A., INC. | $36.90 | 2019 | |
| Pfizer INC. | $35.68 | 2019 | |
| Merck Sharp & Dohme LLC | $30.06 | 2019-2020 | |
| Medtronic, INC. | $29.29 | 2022 | |
| Sumitomo Pharma America, INC. | $28.02 | 2023 | Myfembree |
| Agile Therapeutics, INC. | $22.89 | 2023 | Twirla |
| Sage Therapeutics, LLC | $18.49 | 2019 | |
| Shire North American Group INC | $17.10 | 2019 | |
| Eisai INC. | $14.72 | 2019 |
Show all 18 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Bayer Healthcare Pharmaceuticals INC. | $13.96 | 2020 | |
| Amgen INC. | $12.67 | 2019 | |
| Coloplast Corp | $11.46 | 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 Katherine Williamson 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.