Matthew Ramsey, MD
Diagnostic Radiology · Knoxville, TNNPI 1730538588
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (50.9%), travel and lodging and consulting fees — rather than concentrated in one kind of arrangement. 11 manufacturers reported payments, led by Penumbra, Inc. at 44.5% of the total. Reporting peaked in 2023 at $3,315 and has fallen 71.1% since, to $959 in 2025. Among diagnostic radiology clinicians in TN 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 74 payments — averaging $88.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$3K
- Inari Medical, Inc.$2K
- Boston Scientific$691
- Medtronic$614
- Amneal Pharmaceuticals LLC$453
- W. L. Gore & Associates, Inc.$147
- plus $240 from 5 others
What the payments were for
- Consulting fees$1,00015%
- Travel & lodging$2,23334%
- Food & beverage$3,34651%
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. | 8 | $2,926 |
| Inari Medical, Inc. | 10 | $1,508 |
| Boston Scientific | 10 | $691 |
| Medtronic | 8 | $614 |
| Amneal Pharmaceuticals LLC | 30 | $453 |
| W. L. Gore & Associates, Inc. | 1 | $147 |
| Smith+Nephew | 1 | $143 |
| Lundbeck LLC | 2 | $34 |
| Sirtex Medical Inc | 2 | $28 |
| Bard Peripheral Vascular, Inc. | 1 | $24 |
| Seagen Inc. | 1 | $11 |
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 System$2,713
- CT THROMBECTOMY SYSTEM KIT$1,347
- FLOWTRIEVER CATHETER, S$1,347
- Abre$310
- EMBOLD Fibered$267
- Emprint$162
- VIATORR Endoprosthesis$147
- AETOS Shoulder System$143
- Cryoablation needles$124
- RUBY Coil$122
- GENERAL EMBOLICS$121
How this compares
$6,579 in reported general payments places this provider in the 95th percentile of 757 diagnostic radiology providers in Tennessee.
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 diagnostic radiology in Knoxville
- Gregory MinwellKnoxville$105K
- Daniel HossKnoxville$70K
- Jeffrey MahonyKnoxville$58K
- Robert EberlyKnoxville$42K
- Noel BergquistKnoxville$38K
- Andrew NicholsonKnoxville$35K
- Dana FathyKnoxville$30K
- Amanda SquiresKnoxville$17K
- John GoodwinKnoxville$9K
- Donald WalkerKnoxville$7K
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.