Ratna Kunasani, MD
Vascular Surgery · Greenbelt, MDNPI 1104073808
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (55.3%), food and beverage and consulting fees — rather than concentrated in one kind of arrangement. 11 manufacturers reported payments, led by Silk Road Medical, Inc. at 38.1% of the total. Reporting peaked in 2019 at $1,627 and has fallen 88.7% since, to $184 in 2025. That places this record below the midpoint for vascular surgery clinicians in MD, where the typical reported total is $3,095.
Across 31 payments — averaging $105.15 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Silk Road Medical, Inc.$1K
- Cook Medical LLC$712
- KCI USA, Inc.$486
- Cook Incorporated$353
- Boston Scientific$143
- Abbott$126
- plus $197 from 5 others
What the payments were for
- Consulting fees$40012%
- Travel & lodging$1,80255%
- Food & beverage$1,05832%
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 |
|---|---|---|
| Silk Road Medical, Inc. | 5 | $1,242 |
| Cook Medical LLC | 6 | $712 |
| KCI USA, Inc. | 2 | $486 |
| Cook Incorporated | 3 | $353 |
| Boston Scientific | 1 | $143 |
| Abbott | 4 | $126 |
| Shockwave Medical, Inc | 3 | $78 |
| Medtronic(2 entities) | 3 | $47 |
| E.r. Squibb & Sons, L.L.C. | 2 | $33 |
| Cardiovascular Systems Inc. | 1 | $24 |
| W. L. Gore & Associates, Inc. | 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.
How this compares
$3,260 in reported general payments places this provider in the 50th percentile of 104 vascular surgery 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 34 | $368 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Greenbelt
- Paul McNeillFrederick$302K
- John MartinAnnapolis$172K
- Caitlin HicksBaltimore$88K
- Shahab ToursavadkohiBaltimore$76K
- Michael OsgoodBel Air$57K
- Jeffrey WangGermantown$53K
- Frank CriadoBaltimore$52K
- Dustin YoonGermantown$36K
- Micah GirottiBel Air$35K
- Khanjan NagarshethBaltimore$33K
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.