Frank Groshek, MD
Vascular & Interventional Radiology · Annapolis, MDNPI 1093977415
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 97.8% of the total across 16 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Inari Medical, Inc. accounts for 65.7% of it on its own, with 3 other manufacturers making up the rest. That places this record below the midpoint for vascular & interventional radiology clinicians in MD, where the typical reported total is $1,962.
Across 16 payments — averaging $54.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Inari Medical, Inc.$574
- Medtronic$266
- Z-medica, LLC$20
- Cook Medical LLC$15
What the payments were for
- Consulting fees$202%
- Food & beverage$85598%
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 |
|---|---|---|
| Inari Medical, Inc. | 7 | $574 |
| Medtronic(2 entities) | 7 | $266 |
| Z-medica, LLC | 1 | $20 |
| Cook Medical LLC | 1 | $15 |
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.
- FlowTriever$363
- ClotTriever$363
- OSTEOCOOL RF ABLATION$169
How this compares
$875 in reported general payments places this provider in the 30th 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 Annapolis
- Quang NguyenAnnapolis$6K
- Alexander KimOxon Hill$1.1M
- Nariman NezamiBaltimore$412K
- Philippe GailloudBaltimore$159K
- Bradford WoodBethesda$155K
- Alain DroozBethesda$80K
- Kelvin HongPrince Frederick$49K
- Christos GeorgiadesBaltimore$37K
- Hyun BangBrandywine$31K
- Zachariah Blegen-DipietroBaltimore$23K
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.