Physician profile
Karen E Knapp
NPI 1518959972
$9,424.08
in general payments reported to CMS, 2019-2025
39 companies · $974 in 2025
The $974 reported for 2025 was more than what 90% of Obstetrics & Gynecology providers received nationally (typical 2025 total: $158).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $781 · 2020: $4,990 · 2021: $594 · 2022: $587 · 2023: $602 · 2024: $897 · 2025: $974.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $2,373 · Education: $99.99.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $2,372.97 |
| Education | $99.99 |
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 |
|---|---|---|---|
| Astellas Pharma US INC | $5,020.96 | 2019-2025 | Veozah, Myrbetriq |
| Abbvie INC. | $711.16 | 2019-2025 | |
| Amgen INC. | $560.16 | 2019-2025 | Evenity, Prolia |
| Shield Therapeutics INC | $300.10 | 2023-2025 | Accrufer |
| Coopersurgical, INC. | $252.30 | 2019-2025 | Paragard T 380a, Endosee, Paragard T 380a |
| Hologic Sales and Service, LLC | $233.36 | 2021-2025 | Acessa Provu System, Sonata Sonography-Guided Transcervical Fibroid Ablation System, Aptima |
| Bayer Healthcare Pharmaceuticals INC. | $230.48 | 2019-2025 | |
| Pfizer INC. | $220.03 | 2019-2024 | |
| Exeltis, USA INC. | $217.18 | 2019-2025 | Slynd |
| Organon LLC | $187.31 | 2021-2025 | Nexplanon |
| Sumitomo Pharma America, INC. | $162.03 | 2023-2025 | Myfembree, Gemtesa |
| Radius Health, INC. | $136.79 | 2020-2025 | Tymlos |
| Mayne Pharma Commercial LLC | $127.96 | 2021-2025 | |
| Lupin INC. | $112.84 | 2019-2021 | |
| Myovant Sciences INC. | $85.78 | 2021-2022 |
Show all 39 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Therapeuticsmd, INC. | $72.08 | 2019-2020 | |
| Lundbeck LLC | $70.17 | 2022 | |
| Exact Sciences Corporation | $59.27 | 2024-2025 | Cologuard Collection Kit |
| Amag Pharmaceuticals, INC. | $58.77 | 2019-2020 | |
| Vertex Pharmaceuticals Incorporated | $57.83 | 2024-2025 | |
| Avion Pharmaceuticals | $55.01 | 2020-2022 | |
| Merck Sharp & Dohme LLC | $50.85 | 2019-2020 | |
| Davol INC. | $47.23 | 2023 | Arista Ah Flexitip |
| Mimedx Group, INC. | $46.82 | 2024 | |
| Millicent US INC | $46.08 | 2025 | Intrarosa, Femlyv, Femring |
| Duchesnay USA Incorporated | $41.40 | 2019 | |
| Stryker Corporation | $35.79 | 2019 | |
| Novo Nordisk INC | $30.58 | 2023 | |
| Agile Therapeutics, INC. | $24.35 | 2021-2022 | |
| Vertical Pharmaceuticals, LLC | $23.09 | 2019 | |
| Sanofi Pasteur INC. | $20.84 | 2019 | |
| Biogen, INC. | $19.98 | 2025 | Zurzuvae |
| Optumhealth Care Solutions, LLC | $17.17 | 2025 | Vivify Health Care Team Portal 001, Eitan Medical |
| Daiichi Sankyo INC. | $16.84 | 2020 | |
| Medtronic, INC. | $16.81 | 2023 | Kyphon Express II Kyphopak Tray |
| Renovia INC | $15.66 | 2021 | |
| Tactile Systems Technology INC | $15.27 | 2020 | |
| Ferring Pharmaceuticals INC. | $12.40 | 2019 | |
| Allergan, INC. | $11.35 | 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 Karen Knapp 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.