Physician profile
David Diemert
NPI 1659388262
$8,070.22
in general payments reported to CMS, 2019-2025
4 companies · $3,885 in 2025
The $3,885 reported for 2025 was more than what 89% of Infectious Disease providers received nationally (typical 2025 total: $187).
Payments by year
General and research payments by program year, as reported to CMS.
General payments by year: 2022: $1,395 · 2023: $1,860 · 2024: $930 · 2025: $3,885.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Consulting Fee: $6,483 · Travel and Lodging: $193.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Consulting Fee | $6,482.50 |
| Travel and Lodging | $192.72 |
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. Research payments are listed separately below. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Merck Sharp & Dohme LLC | $6,277.50 | 2022-2025 | |
| Pfizer INC. | $1,792.72 | 2025 |
2 companies reported research payments only; those appear in the research section below.
Research and ownership
$2,500.00 in research payments reported 2019-2025. Research payments are often institution-directed and tied to clinical trials: they are reported under a clinician's name but frequently go to a hospital or research organization, and usually reflect participation in medical research.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw David Diemert 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.