Zachariah Blegen-Dipietro, MD
Vascular & Interventional Radiology · Baltimore, MDNPI 1427469998
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (51.0%), food and beverage and grants — rather than concentrated in one kind of arrangement. Penumbra, Inc. accounts for 64.7% of it on its own, with 21 other manufacturers making up the rest. Reporting peaked in 2023 at $8,992 and has fallen 51.9% since, to $4,328 in 2025.
Across 192 payments — averaging $121.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$15K
- Boston Scientific$4K
- Medtronic$2K
- W. L. Gore & Associates, Inc.$424
- Inari Medical, Inc.$391
- Bolton Medical Inc$131
- plus $787 from 16 others
What the payments were for
- Grants$1,0575%
- Travel & lodging$11,93751%
- Food & beverage$10,40444%
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. | 78 | $15,128 |
| Boston Scientific | 34 | $4,225 |
| Medtronic | 14 | $2,312 |
| W. L. Gore & Associates, Inc. | 18 | $424 |
| Inari Medical, Inc. | 15 | $391 |
| Bolton Medical Inc | 2 | $131 |
| Sirtex Medical Inc | 4 | $120 |
| Shockwave Medical, Inc | 5 | $99 |
| Imperative Care, Inc | 5 | $92 |
| Johnson & Johnson | 2 | $76 |
| Route 92 Medical, Inc. | 1 | $61 |
| Stryker | 2 | $58 |
| Terumo Medical Corporation | 2 | $51 |
| Siemens Medical Solutions USA, Inc. | 1 | $42 |
| Bard Peripheral Vascular, Inc. | 2 | $34 |
| Veryan Medical Incorporated | 1 | $32 |
| Surmodics, Inc. | 1 | $27 |
| Microvention, Inc. | 1 | $23 |
| Philips North America LLC | 1 | $21 |
| Agiliti Surgical, Inc. | 1 | $20 |
| Applied Medical Technology Inc | 1 | $17 |
| Chiesi USA, Inc. | 1 | $13 |
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$12,089
- EKOSONIC$1,377
- Penumbra System$1,226
- ENDURANT IIS$1,057
- TurboHawk$776
- RED 72$608
- OSTEOCOOL RF ABLATION SYSTEM$147
- Valiant Captivia$139
- GORE VIABAHN VBX Balloon Expandable Endo$123
- FLOWTRIEVER CATHETER, S$118
- CT THROMBECTOMY SYSTEM KIT$118
- TREO ABDOMINAL STENT-GRAFT SYSTEM$115
- THERASPHERE$112
How this compares
$23,398 in reported general payments places this provider in the 85th 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
- Hyun KimBaltimore$18K
- Nabeel AkhterBaltimore$14K
- Grafe LyonsBaltimore$12K
- Robert LiddellBaltimore$9K
- 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.