Sira Duson, MD
Vascular Surgery · Memphis, TNNPI 1467686428
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 96.6% of the total across 81 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 21 manufacturers reported payments, led by Penumbra, Inc. at 24.3% of the total. 2025 is the largest year on record at $2,547, 2.6 times the $977 reported in 2019. That places this record below the midpoint for vascular surgery clinicians in TN, where the typical reported total is $5,973.
Across 81 payments — averaging $77.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$2K
- Cook Medical LLC$1K
- W. L. Gore & Associates, Inc.$1K
- Silk Road Medical, Inc.$658
- Medtronic$608
- Lemaitre Vascular, Inc.$414
- plus $1K from 15 others
What the payments were for
- Travel & lodging$2153%
- Food & beverage$6,05597%
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. | 13 | $1,525 |
| Cook Medical LLC | 11 | $1,027 |
| W. L. Gore & Associates, Inc. | 12 | $1,004 |
| Silk Road Medical, Inc. | 7 | $658 |
| Medtronic(2 entities) | 7 | $608 |
| Lemaitre Vascular, Inc. | 4 | $414 |
| Boston Scientific | 8 | $196 |
| Inari Medical, Inc. | 1 | $155 |
| Shape Memory Medical Inc. | 1 | $150 |
| Angiodynamics, Inc. | 3 | $144 |
| Endologix LLC | 1 | $119 |
| Acera Surgical, Inc. | 2 | $50 |
| Solventum Corporation | 2 | $47 |
| Smith+Nephew | 2 | $41 |
| Aroa Biosurgery Incorporated | 1 | $29 |
| Abbott | 1 | $24 |
| Kerecis Limited | 1 | $20 |
| Bard Peripheral Vascular, Inc. | 1 | $17 |
| Johnson & Johnson | 1 | $15 |
| Tactile Systems Technology Inc | 1 | $15 |
| Cashflow Solutions, LLC | 1 | $12 |
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.
- Penumbra System$772
- ENROUTE Transcarotid Neuroprotection System$532
- Indigo System$474
- GORE VIABAHN VBX Balloon Expandable Endo$387
- RESTOREFLOW$377
- ENROUTE Transcarotid Stent System$355
- ENHANCE Transcarotid Peripheral Access Kit$355
- ENROUTE 0.014 Guidewire$355
- ENDURANT IIS$273
- Cook Medical Stents$208
- ENROUTE Transcarotid Stent$177
- GORE TAG Thoracic Branch Endoprosthesis$175
- CT THROMBECTOMY SYSTEM KIT$155
- FLOWTRIEVER CATHETER, S$155
- Cook$154
- IMPEDE EMBOLIZATION PLUG$150
- VIABAHN Endoprosthesis with PROPATEN Bioactive Surface$148
- Zenith Alpha$142
- RUBY Coil$132
- HawkOne$126
How this compares
$6,270 in reported general payments places this provider in the 50th percentile of 117 vascular surgery providers in Tennessee.
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 Memphis
- James GardnerMemphis$18K
- Jorge Weber GuzmanMemphis$15K
- Spyridon MonastiriotisMemphis$10K
- Randall FranzMemphis$10K
- Justin HunterMemphis$8K
- Shaun StickleyMemphis$8K
- Daniel ClairNashville$993K
- Anton Dias PereraGermantown$832K
- Bryan FisherHendersonville$417K
- Christopher LesarChattanooga$311K
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.