George Niesen, MD
Anesthesiology · Chesterfield, MONPI 1689784738
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.1% of the total across 24 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 8 manufacturers reported payments, led by Merck at 37.5% of the total. Reporting peaked in 2024 at $138 and has fallen 67.0% since, to $46 in 2025.
Across 24 payments — averaging $20.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$180
- Cumberland Pharmaceuticals, Inc.$95
- Silk Road Medical, Inc.$86
- Lemaitre Vascular, Inc.$37
- Masimo Corporation$26
- Pacira Pharmaceuticals Incorporated$21
- plus $36 from 2 others
What the payments were for
- Food & beverage$44392%
- Education$388%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Merck | 9 | $180 |
| Cumberland Pharmaceuticals, Inc. | 7 | $95 |
| Silk Road Medical, Inc. | 3 | $86 |
| Lemaitre Vascular, Inc. | 1 | $37 |
| Masimo Corporation | 1 | $26 |
| Pacira Pharmaceuticals Incorporated | 1 | $21 |
| Mallinckrodt Hospital Products Inc. | 1 | $19 |
| Elite Orthopedics, LLC | 1 | $17 |
How this compares
$480 in reported general payments places this provider in the 85th percentile of 891 anesthesiology providers in Missouri.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other anesthesiology in Chesterfield
- Mohammad BashitiChesterfield$2K
- Michael KopecChesterfield$1K
- Vijay PatnanaChesterfield$1K
- Christopher BeuerSaint Louis$905K
- Bradford CardonellColumbia$440K
- Mitchell FingermanSaint Louis$229K
- Evan KharaschSaint Louis$57K
- Terri MonkSaint Louis$42K
- Quoc DangSaint Louis$29K
- Peter NageleSaint Louis$25K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.