William Knox, DO
Anesthesiology · Rolla, MONPI 1205989084
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $2,555 of the $3,598 with a category attached, or 71.0%. 18 manufacturers reported payments, led by Medtronic at 51.4% of the total. Reporting peaked in 2019 at $1,882 and has fallen 58.7% since, to $777 in 2025. Among anesthesiology clinicians in MO with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 90 payments — averaging $39.98 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$2K
- Foundation Fusion Solutions, LLC$548
- Nevro Corp.$409
- Biotronik NRO, Inc.$126
- Stryker$110
- Stimwave Technologies Incorporated$109
- plus $446 from 12 others
What the payments were for
- Travel & lodging$1,04429%
- Food & beverage$2,55571%
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 |
|---|---|---|
| Medtronic(2 entities) | 31 | $1,851 |
| Foundation Fusion Solutions, LLC | 15 | $548 |
| Nevro Corp. | 18 | $409 |
| Biotronik NRO, Inc. | 4 | $126 |
| Stryker | 2 | $110 |
| Stimwave Technologies Incorporated | 1 | $109 |
| Abbott | 1 | $84 |
| Electronic Waveform Lab, Inc. | 2 | $76 |
| AbbVie | 3 | $70 |
| Masimo Corporation | 2 | $46 |
| Collegium Pharmaceutical, Inc. | 3 | $36 |
| Pfizer | 2 | $28 |
| Amgen | 1 | $22 |
| Pacira Pharmaceuticals Incorporated | 1 | $21 |
| Boston Scientific | 1 | $21 |
| Avanos Medical | 1 | $20 |
| Biodelivery Sciences International, Inc. | 1 | $16 |
| SPR Therapeutics, Inc | 1 | $7 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- SYNCHROMED$1,204
How this compares
$3,598 in reported general payments places this provider in the 95th 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Hysingla ErHydrocodone Bitartrate | 23 | $11,127 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 385 | $9,610 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 295 | $9,388 |
| Pregabalin | 85 | $4,151 |
| Xtampza ErOxycodone Myristate | 11 | $3,784 |
| Morphine Sulfate ErMorphine Sulfate | 100 | $2,264 |
| Tramadol Hcl ErTramadol Hcl | 39 | $1,962 |
| Fentanyl | 11 | $1,682 |
| Oxycodone Hcl | 78 | $1,416 |
| Tramadol Hcl | 86 | $859 |
| Morphine Sulfate | 22 | $457 |
| Cyclobenzaprine Hcl | 13 | $254 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 18 | $249 |
| Diazepam | 141 | $141 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Collegium Pharmaceutical, Inc.Xtampza Er | $36 | $3,78411 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 95th percentile of 891 anesthesiology providers in Missouri.
Other anesthesiology in Rolla
- Glenn KunkelRolla$9K
- 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
- Brian MeekO Fallon$14K
- Gary HaynesSaint Louis$13K
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.