Michael Workman, MD
Neuroradiology · Springfield, MONPI 1104873587
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,253 of the $1,533 with a category attached, or 81.8%. Philips North America LLC accounts for 84.8% of it on its own, with 3 other manufacturers making up the rest. 2025 is the largest year on record at $1,326, more than ten times the $60 reported in 2020.
Across 7 payments — averaging $218.98 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Philips North America LLC$1K
- Johnson & Johnson$146
- Angiodynamics, Inc.$60
- SPR Therapeutics, Inc$27
Across 4 payments — averaging $1560.00 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.
- Stryker$6K
What the payments were for
- Travel & lodging$1,25382%
- Food & beverage$28018%
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 |
|---|---|---|
| Philips North America LLC | 3 | $1,300 |
| Johnson & Johnson | 2 | $146 |
| Angiodynamics, Inc. | 1 | $60 |
| SPR Therapeutics, Inc | 1 | $27 |
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.
- Azurion 7 M20$1,253
How this compares
$1,533 in reported general payments places this provider in the 65th percentile of 20 neuroradiology 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 |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 41 | $324 |
| Diazepam | 34 | $36 |
Paid to pharmacies, not to this prescriber.
Other neuroradiology in Springfield
- Michael WaltersSpringfield$255
- Bryan JeunSpringfield$123
- Bryan HallSpringfield$113
- Bachir ZoghbiSpringfield$68
- Christopher MoranSaint Louis$662K
- Arindam ChatterjeeSaint Louis$34K
- Maria PonisioSaint Louis$6K
- Kasra RahbarSaint Louis$5K
- Thomas MadaelilSaint Louis$2K
- Ayman NadaSaint Louis$2K
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.