Michael Diringer
Critical Care Medicine · Saint Louis, MONPI 1881625390
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $1,900 of the $2,487 with a category attached, or 76.4%. Pfizer accounts for 76.4% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2019 at $1,970 and has fallen 95.4% since, to $91 in 2021.
Across 4 payments — averaging $621.81 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$2K
- AstraZeneca$427
- ZOLL Circulation Inc$91
- Bard Access Systems, Inc.$70
Across 15 payments — averaging $35,002 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- C. R. Bard, Inc. & Subsidiaries$498K
- Biogen$24K
- Bard Peripheral Vascular, Inc.$4K
What the payments were for
- Consulting fees$42717%
- Speaking & faculty fees$1,90076%
- Food & beverage$1616%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Pfizer | 1 | $1,900 |
| AstraZeneca | 1 | $427 |
| ZOLL Circulation Inc | 1 | $91 |
| Bard Access Systems, Inc. | 1 | $70 |
How this compares
$2,487 in reported general payments places this provider in the 85th percentile of 208 critical care medicine providers in Missouri.
Other critical care medicine in Saint Louis
- Jacob KeepermanSaint Louis$51K
- Farid SadakaSaint Louis$41K
- Rajat DharSaint Louis$31K
- Pratik SinhaSaint Louis$25K
- Bryan KraftSaint Louis$24K
- Adam MaySaint Louis$9K
- David StoeckelSaint Louis$9K
- Richard HotchkissSaint Louis$8K
- Justin KnittelSaint Louis$5K
- Bria GiacominoSaint Louis$4K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.