Michael Dahn, MD
Vascular Surgery · Bluffton, SCNPI 1114924677
Payments from drug & device makers
Across 136 payments — averaging $44.73 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$2K
- Endologix LLC$728
- Johnson & Johnson$627
- Smith+Nephew$405
- Angiodynamics, Inc.$332
- Organogenesis Inc.$332
- plus $2K from 24 others
What the payments were for
- Speaking & faculty fees$451%
- Travel & lodging$50%
- Food & beverage$5,62592%
- Education$4087%
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 |
|---|---|---|
| W. L. Gore & Associates, Inc. | 19 | $1,694 |
| Endologix LLC | 12 | $728 |
| Johnson & Johnson | 16 | $627 |
| Smith+Nephew | 12 | $405 |
| Angiodynamics, Inc. | 10 | $332 |
| Organogenesis Inc. | 7 | $332 |
| Medtronic(2 entities) | 6 | $302 |
| Inari Medical, Inc. | 7 | $260 |
| Cook Medical LLC | 4 | $225 |
| Philips North America LLC | 2 | $174 |
| Abbott | 1 | $150 |
| Pfizer | 6 | $143 |
| E.r. Squibb & Sons, L.L.C. | 1 | $91 |
| Boston Scientific | 4 | $79 |
| Next Science LLC | 5 | $77 |
| KCI USA, Inc. | 4 | $72 |
| Kerecis Limited | 3 | $65 |
| Cardiovascular Systems Inc. | 3 | $56 |
| BD | 1 | $45 |
| Cvrx, Inc. | 2 | $44 |
| Hydrofera LLC | 2 | $33 |
| Bsn Medical Inc | 1 | $23 |
| Convatec Inc. | 1 | $21 |
| OVIK Health, LLC | 1 | $20 |
| Mimedx Group, Inc. | 1 | $19 |
| Astellas Pharma US Inc | 1 | $15 |
| Misonix Inc | 1 | $14 |
| Lemaitre Vascular, Inc. | 1 | $13 |
| Bioventus LLC | 1 | $13 |
| Reddress USA, Inc. | 1 | $13 |
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.
- GORE VIABAHN VBX Balloon Expandable Endo$761
- XARELTO$362
- FLOWTRIEVER CATHETER, S$258
- Valiant Captivia$170
- Alto Abdominal Stent Graft System$160
- ESPRIT$150
- VIABAHN Endoprosthesis with Heparin Bioactive Surface$145
- VIABAHN VBX Balloon Expandable Endoprosthesis$143
- Ovation iX Iliac Stent Graft$133
- AFX2 Bifurcated Endograft System$133
- Balloon Sheath with Dilator$125
- (6582) Visions 035$124
- Zenith Spiral-Z$124
- VIABAHN Endoprosthesis with PROPATEN Bioactive Surface$121
- REGRANEX$120
- Auryon Laser System 100-120 Vac$105
How this compares
$6,083 in reported general payments places this provider in the 35th percentile of 99 vascular surgery providers in South Carolina.
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 |
|---|---|---|
| EliquisApixaban | 14 | $20,183 |
| Doxycycline Hyclate | 33 | $538 |
| Amoxicillin-Clavulanate PotassAmoxicillin/Potassium Clav | 19 | $254 |
| ClopidogrelClopidogrel Bisulfate | 18 | $219 |
| Ciprofloxacin Hcl | 17 | $218 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 25 | $192 |
| Atorvastatin Calcium | 14 | $113 |
| Furosemide | 21 | $105 |
| Amoxicillin | 29 | $98 |
| Cephalexin | 11 | $53 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| PfizerEliquis | $143 | $20,18314 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 35th percentile of 99 vascular surgery providers in South Carolina.
Other vascular surgery in Bluffton
- Christopher WixonBluffton$18K
- John RossOrangeburg$1M
- Mathew WoosterWest Columbia$642K
- David DeatonColumbia$609K
- Sagar GandhiGreenville$443K
- Joseph BlasGreenville$335K
- Ravi VeeraswamyCharleston$273K
- Jean Marie RuddyCharleston$210K
- Gerald FortunaWest Columbia$178K
- Kristian HochbergCharleston$106K
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.