Nathanael Dayes, MD
Vascular Surgery · Cheverly, MDNPI 1487851853
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $4,847 of the $7,470 with a category attached, or 64.9%. 19 manufacturers reported payments, led by Penumbra, Inc. at 25.2% of the total. Reporting peaked in 2024 at $4,163 and has fallen 67.9% since, to $1,335 in 2025.
Across 75 payments — averaging $99.60 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$2K
- W. L. Gore & Associates, Inc.$1K
- Boston Scientific$1K
- Cook Incorporated$905
- Cook Medical LLC$794
- Inari Medical, Inc.$296
- plus $1K from 13 others
What the payments were for
- Travel & lodging$2,62335%
- Food & beverage$4,84765%
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 |
|---|---|---|
| Penumbra, Inc. | 4 | $1,882 |
| W. L. Gore & Associates, Inc. | 14 | $1,279 |
| Boston Scientific | 13 | $1,147 |
| Cook Incorporated | 2 | $905 |
| Cook Medical LLC | 18 | $794 |
| Inari Medical, Inc. | 1 | $296 |
| Philips North America LLC | 5 | $187 |
| Silk Road Medical, Inc. | 2 | $164 |
| Cvrx, Inc. | 1 | $144 |
| Bolton Medical Inc | 1 | $144 |
| Abbott | 1 | $125 |
| Endologix LLC | 1 | $103 |
| Progenacare Global, LLC | 1 | $85 |
| Convatec Inc. | 3 | $50 |
| Surmodics, Inc. | 2 | $48 |
| Johnson & Johnson | 1 | $37 |
| Sanara Medtech Inc. | 2 | $33 |
| Tactile Systems Technology Inc | 2 | $30 |
| Cardiovascular Systems Inc. | 1 | $17 |
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.
- RUBY Coil$1,768
- Zenith$1,244
- GENERAL VASCULAR INTERVENTION$336
- GORE VIABAHN VBX Balloon Expandable Endo$300
- FLOWTRIEVER CATHETER, S$296
- CT THROMBECTOMY SYSTEM KIT$296
- GORE TAG Thoracic Branch Endoprosthesis$178
- GORE TAG Conformable Thoracic Endoprosthesis$170
- ELUVIA$168
- VIABAHN Endoprosthesis with PROPATEN Bioactive Surface$152
- Barostim Neo System$144
- RELAY THORACIC STENT-GRAFT WITH PLUS DELIVERY SYSTEM$144
- TREO ABDOMINAL STENT-GRAFT SYSTEM$144
- EKOSONIC$143
- ENROUTE .014 Guidewire$139
- ENHANCE Transcarotid Peripheral Access Kit$139
- ENROUTE Transcarotid Neuroprotection System$139
- ENROUTE Transcarotid Stent$139
- PERCLOSE PROGLIDE$125
- Indigo System$115
How this compares
$7,470 in reported general payments places this provider in the 70th 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.
Other vascular surgery in Cheverly
- 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.