John Martin, MD
Vascular Surgery · Annapolis, MDNPI 1538176482
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $146,923 of the $171,639 with a category attached, or 85.6%. Butterfly Network, Inc. accounts for 70.2% of it on its own, with 10 other manufacturers making up the rest. 2025 is the largest year on record at $147,328, more than ten times the $11,152 reported in 2019. Among vascular surgery clinicians in MD 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 95 payments — averaging $1806.72 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Butterfly Network, Inc.$121K
- Endologix LLC$26K
- Collaborative Care Diagnostics, LLC$14K
- Silk Road Medical, Inc.$6K
- Medtronic$4K
- Intact Vascular, Inc.$933
- plus $1K from 5 others
Across 1 payment — averaging $100.00 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Butterfly Network, Inc.$100
What the payments were for
- Consulting fees$146,92386%
- Speaking & faculty fees$2,5001%
- Travel & lodging$16,67910%
- Food & beverage$5,1523%
- Other$3850%
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 |
|---|---|---|
| Butterfly Network, Inc. | 1 | $120,500 |
| Endologix LLC | 9 | $25,678 |
| Collaborative Care Diagnostics, LLC | 4 | $13,975 |
| Silk Road Medical, Inc. | 39 | $5,601 |
| Medtronic(2 entities) | 27 | $3,678 |
| Intact Vascular, Inc. | 1 | $933 |
| Boston Scientific | 8 | $609 |
| Eko Health, Inc. | 1 | $385 |
| Philips North America LLC | 3 | $168 |
| Cook Medical LLC | 1 | $75 |
| Edwards Lifesciences | 1 | $36 |
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.
- Alto Abdominal Stent Graft System$25,496
- ENROUTE Transcarotid Neuroprotection System$7,530
- ENROUTE Transcarotid Stent$3,999
- ENROUTE Enflate Transcarotid RX Balloon Dilatation Catheter$2,912
- Endurant$2,683
- ENHANCE Transcarotid Peripheral Access Kit$381
- ENROUTE Transcarotid Stent System$251
- ENROUTE 0.014 Guidewire$251
- ENROUTE .014 Guidewire$130
How this compares
$171,639 in reported general payments places this provider in the 95th 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 | 21 | $150 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Annapolis
- Stephen StanzialeAnnapolis$5K
- Lucy KupersmithAnnapolis$4K
- Paul McNeillFrederick$302K
- Caitlin HicksBaltimore$88K
- Shahab ToursavadkohiBaltimore$76K
- Michael OsgoodBel Air$57K
- Jeffrey WangGermantown$53K
- Frank CriadoBaltimore$52K
- Dustin YoonGermantown$36K
- Micah GirottiBel Air$35K
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.