Matthew Stemer, MD
Vascular & Interventional Radiology · Lakeland, FLNPI 1104145366
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $6,027 of the $7,037 with a category attached, or 85.6%. Penumbra, Inc. accounts for 61.0% of it on its own, with 19 other manufacturers making up the rest. Reporting peaked in 2019 at $2,706 and has fallen 68.1% since, to $863 in 2025.
Across 134 payments — averaging $52.52 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$4K
- Inari Medical, Inc.$1K
- Terumo Medical Corporation$414
- Stryker$197
- Boston Scientific$184
- Medtronic$178
- plus $690 from 14 others
What the payments were for
- Travel & lodging$1,01114%
- Food & beverage$6,02786%
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 |
|---|---|---|
| Penumbra, Inc. | 65 | $4,295 |
| Inari Medical, Inc. | 25 | $1,080 |
| Terumo Medical Corporation | 7 | $414 |
| Stryker | 8 | $197 |
| Boston Scientific | 6 | $184 |
| Medtronic | 5 | $178 |
| Biocompatibles, Inc. | 1 | $148 |
| Argon Medical Devices, Inc. | 1 | $107 |
| Johnson & Johnson | 3 | $88 |
| Mozarc Medical US LLC | 2 | $62 |
| Route 92 Medical, Inc. | 1 | $45 |
| W. L. Gore & Associates, Inc. | 1 | $36 |
| Angiodynamics, Inc. | 1 | $36 |
| Microvention, Inc. | 1 | $32 |
| Imperative Care, Inc | 1 | $32 |
| Teleflex LLC | 2 | $32 |
| Siemens Medical Solutions USA, Inc. | 1 | $21 |
| Asahi Intecc USA, Inc. | 1 | $20 |
| Phenox Inc. | 1 | $17 |
| Cordis US CORP. | 1 | $14 |
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.
- Indigo$1,849
- FLOWTRIEVER CATHETER, S$731
- CT THROMBECTOMY SYSTEM KIT$476
- Penumbra System$388
- Benchmark$302
- Indigo System$295
- Azur CX Detachable$265
- RUBY Coil$264
- Penumbra Ruby Coil$150
- VISUAL-ICE$148
- Clot Management$107
- Solitaire$103
How this compares
$7,037 in reported general payments places this provider in the 55th percentile of 329 vascular & interventional radiology providers in Florida.
See all vascular & interventional radiology providers in Florida →
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 vascular & interventional radiology in Lakeland
- Fakhir ElmasriLakeland$563K
- Jong Ho ParkLakeland$280K
- Lawrence WhitneyLakeland$263K
- Michael CampbellLakeland$70K
- Husam HabboubLakeland$44K
- Michael GordonLakeland$39K
- Martin RadvanyLakeland$35K
- Ripal GandhiMiami$2.5M
- Michael CohnHollywood$1.3M
- Bret WiechmannGainesville$1.3M
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.