Matthew Spraker, MD
Radiation Oncology · Saint Louis, MONPI 1821331596
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $47,969 of the $61,154 with a category attached, or 78.4%. Tactile Systems Technology Inc accounts for 83.8% of it on its own, with 16 other manufacturers making up the rest. 2025 is the largest year on record at $40,792, more than ten times the $539 reported in 2019. Among radiation oncology 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 77 payments — averaging $794.21 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Tactile Systems Technology Inc$51K
- Siemens Medical Solutions USA, Inc.$6K
- Varian Medical Systems, Inc.$3K
- Sumitomo Pharma America, Inc.$297
- Medtronic$172
- Boston Scientific$161
- plus $550 from 11 others
Across 3 payments — averaging $26,000 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.
- Siemens Medical Solutions USA, Inc.$52K
- Varian Medical Systems, Inc.$26K
What the payments were for
- Consulting fees$2,0003%
- Speaking & faculty fees$47,96978%
- Travel & lodging$8,18713%
- Food & beverage$2,9985%
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 |
|---|---|---|
| Tactile Systems Technology Inc | 38 | $51,218 |
| Siemens Medical Solutions USA, Inc. | 6 | $6,216 |
| Varian Medical Systems, Inc. | 3 | $2,539 |
| Sumitomo Pharma America, Inc. | 13 | $297 |
| Medtronic | 1 | $172 |
| Boston Scientific | 1 | $161 |
| Viewray Technologies Inc | 2 | $143 |
| Teleflex LLC | 2 | $137 |
| Genentech USA, Inc. | 2 | $52 |
| Histosonics, Inc. | 1 | $37 |
| Zap Surgical Systems, Inc. | 1 | $33 |
| GT Medical Technologies, Inc | 2 | $32 |
| Novartis | 1 | $28 |
| Janssen Scientific Affairs, LLC | 1 | $25 |
| Johnson & Johnson | 1 | $23 |
| Bayer | 1 | $22 |
| Novocure Inc. | 1 | $19 |
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.
- Flexitouch Plus$50,721
- Nimbl$40,081
- Entre Plus$10,639
- TrueBeam$4,000
- OSTEOCOOL RF ABLATION SYSTEM$172
- TheraSphere Administration Set$161
- MRIdian LINAC$123
How this compares
$61,154 in reported general payments places this provider in the 95th percentile of 123 radiation oncology 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 |
|---|---|---|
| Oxycodone Hcl | 35 | $1,003 |
| Lidocaine Hcl ViscousLidocaine Hcl | 13 | $117 |
| Omeprazole | 11 | $110 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Saint Louis
- Clifford RobinsonSaint Louis$817K
- Pamela SamsonSaint Louis$95K
- Jeffrey BradleySaint Louis$75K
- Lauren HenkeSaint Louis$45K
- Jeff MichalskiSaint Louis$44K
- Stephanie PerkinsSaint Louis$16K
- Hiram GaySaint Louis$12K
- Shahed BadiyanSaint Louis$6K
- Robert FrazierSaint Louis$6K
- Christopher AbrahamSaint Louis$5K
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.