Physician profile
Mark J Diercks
NPI 1134283567
$2,277.18
in general payments reported to CMS, 2019-2025
9 companies · $33.46 in 2025
The $33.46 reported for 2025 was less than what a typical Psychiatry provider received nationally (typical 2025 total: $176).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2019: $266 · 2020: $386 · 2021: $795 · 2022: $501 · 2023: $297 · 2025: $33.46.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $267 · Education: $62.99.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $267.25 |
| Education | $62.99 |
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 |
|---|---|---|---|
| Alkermes, INC. | $832.95 | 2019-2025 | Aristada, Lybalvi |
| Janssen Pharmaceuticals, INC | $567.87 | 2019-2023 | Invega Sustenna, Invega Trinza |
| Allergan, INC. | $252.27 | 2019-2020 | |
| Abbvie INC. | $236.72 | 2021-2022 | |
| Iti, INC. (D/B/A Intra-Cellular Therapies, INC.) | $232.61 | 2021-2022 | |
| Otsuka America Pharmaceutical, INC. | $99.10 | 2019-2022 | |
| Indivior INC. | $26.00 | 2022 | |
| Teva Pharmaceuticals USA, INC. | $17.20 | 2022 | |
| Avanir Pharmaceuticals, INC. | $12.46 | 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 Mark Diercks 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.