Robert Liddell, MD
Vascular & Interventional Radiology · Baltimore, MDNPI 1972553022
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $5,812 of the $9,118 with a category attached, or 63.7%. 16 manufacturers reported payments, led by Merck at 26.8% of the total. Reporting peaked in 2024 at $3,205 and has fallen 58.3% since, to $1,337 in 2025.
Across 60 payments — averaging $151.97 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$2K
- Boston Scientific$2K
- Penumbra, Inc.$1K
- Biocompatibles, Inc.$949
- Terumo Medical Corporation$336
- Medtronic$319
- plus $2K from 10 others
What the payments were for
- Consulting fees$2,44027%
- Travel & lodging$86610%
- Food & beverage$5,81264%
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 |
|---|---|---|
| Merck | 1 | $2,440 |
| Boston Scientific | 20 | $2,143 |
| Penumbra, Inc. | 11 | $1,358 |
| Biocompatibles, Inc. | 2 | $949 |
| Terumo Medical Corporation | 5 | $336 |
| Medtronic(2 entities) | 2 | $319 |
| Stryker | 2 | $309 |
| Sirtex Medical Inc | 3 | $301 |
| Bard Peripheral Vascular, Inc. | 3 | $250 |
| Johnson & Johnson | 2 | $197 |
| Mediview XR, Inc. | 1 | $146 |
| Imperative Care, Inc | 3 | $111 |
| Angiodynamics, Inc. | 2 | $105 |
| Trisalus Life Sciences, Inc. | 1 | $67 |
| Inari Medical, Inc. | 1 | $59 |
| Okami Medical, Inc. | 1 | $28 |
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.
- TheraSphere Y90 Glass Microspheres 10 GBq$1,160
- THERASPHERE-BIO$949
- Indigo System$659
- Penumbra System$414
- NEUWAVE Flex Microwave Ablation System$349
- LAVA LES (Liquid Embolic System)$289
- CONCERTOTM$195
- SPINEJACK$161
- Penumbra Ruby Coil$150
- Indigo$150
- FLOWTRIEVER CATHETER, S$149
- CT THROMBECTOMY SYSTEM KIT$149
- EMBOZENE$125
- Concerto$124
- GENERAL GUIDEWIRES$115
- THERASPHERE$112
- Trek$108
How this compares
$9,118 in reported general payments places this provider in the 75th percentile of 75 vascular & interventional radiology providers in Maryland.
See all vascular & interventional radiology providers in Maryland →
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 Baltimore
- Nariman NezamiBaltimore$412K
- Philippe GailloudBaltimore$159K
- Christos GeorgiadesBaltimore$37K
- Zachariah Blegen-DipietroBaltimore$23K
- Hyun KimBaltimore$18K
- Nabeel AkhterBaltimore$14K
- Grafe LyonsBaltimore$12K
- Vahid EtezadiBaltimore$8K
- Nikhil BhagatBaltimore$6K
- Brian HollyBaltimore$6K
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.