Arthur Siachos, MD
Cardiovascular Disease · Greenville, SCNPI 1598757171
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 98.2% of the total across 557 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 37 manufacturers, the largest accounting for just 13.9% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $2,649 and has fallen 66.5% since, to $888 in 2025.
Across 557 payments — averaging $15.93 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$1K
- Medtronic$969
- Abiomed$904
- Amgen$874
- Abbott$626
- Novartis$586
- plus $4K from 31 others
Across 81 payments — averaging $246.59 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.
- Biotronik Inc.$14K
- Abbott$6K
What the payments were for
- Food & beverage$8,71398%
- Entertainment$1632%
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 |
|---|---|---|
| Johnson & Johnson | 138 | $1,238 |
| Medtronic(3 entities) | 75 | $969 |
| Abiomed | 26 | $904 |
| Amgen | 50 | $874 |
| Abbott | 25 | $626 |
| Novartis | 38 | $586 |
| Pfizer | 26 | $411 |
| Boston Scientific | 23 | $399 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 34 | $396 |
| AstraZeneca | 23 | $314 |
| Atricure, Inc. | 10 | $257 |
| Boehringer Ingelheim | 12 | $224 |
| Cvrx, Inc. | 3 | $189 |
| Hitachi Healthcare Americas Corp. | 3 | $163 |
| Shockwave Medical, Inc | 9 | $140 |
| Sanofi-aventis U.S. LLC | 7 | $135 |
| Gilead | 12 | $125 |
| Edwards Lifesciences | 1 | $111 |
| Bayer | 4 | $85 |
| Teleflex LLC | 2 | $67 |
| Kiniksa Pharmaceuticals International, PLC | 3 | $67 |
| Amarin Pharma, Inc. | 4 | $65 |
| E.r. Squibb & Sons, L.L.C. | 4 | $53 |
| Merck | 4 | $53 |
| Regeneron Healthcare Solutions, Inc. | 3 | $50 |
| Cardiovascular Systems Inc. | 4 | $50 |
| Kestra Medical Technology Services, Inc. | 2 | $49 |
| Fujifilm Healthcare Americas Corporation | 1 | $48 |
| Philips North America LLC | 2 | $47 |
| Alnylam Pharmaceuticals Inc. | 1 | $40 |
| Novo Nordisk | 2 | $35 |
| Daiichi Sankyo Inc. | 1 | $24 |
| Kiniksa Pharmaceuticals, Ltd. | 1 | $20 |
| Lundbeck LLC | 1 | $18 |
| Scpharmaceuticals Inc. | 1 | $17 |
| Cardinal Health 200 LLC | 1 | $14 |
| Impulse Dynamics (USA) Inc. | 1 | $14 |
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.
- Impella$241
- Barostim Neo System$144
- Repatha$125
- MitraClip$115
- Edwards SAPIEN 3 Transcatheter Heart Valve$111
- VYNDAQEL$110
How this compares
$8,875 in reported general payments places this provider in the 75th percentile of 257 cardiovascular disease providers in South Carolina.
See all cardiovascular disease 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 | 861 | $891,667 |
| XareltoRivaroxaban | 204 | $254,546 |
| Repatha SureclickEvolocumab | 232 | $193,510 |
| EntrestoSacubitril/Valsartan | 145 | $136,856 |
| JardianceEmpagliflozin | 125 | $103,693 |
| MultaqDronedarone Hcl | 45 | $61,052 |
| VascepaIcosapent Ethyl | 41 | $30,404 |
| BrilintaTicagrelor | 36 | $25,747 |
| Praluent PenAlirocumab | 31 | $24,748 |
| Metoprolol Succinate | 1,266 | $15,202 |
| Atorvastatin Calcium | 893 | $10,345 |
| CorlanorIvabradine Hcl | 14 | $8,799 |
| Ezetimibe | 299 | $8,740 |
| Flecainide Acetate | 205 | $7,282 |
| Icosapent Ethyl | 24 | $7,121 |
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 | $411 | $891,667861 claims |
| Johnson & JohnsonXarelto | $1,238 | $254,546204 claims |
| NovartisEntresto | $586 | $136,856145 claims |
| Boehringer IngelheimJardiance | $224 | $103,693125 claims |
| Sanofi-aventis U.S. LLCMultaq | $135 | $61,05245 claims |
| AstraZenecaBrilinta | $314 | $25,74736 claims |
| AmgenCorlanor | $874 | $8,79914 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 75th percentile of 257 cardiovascular disease providers in South Carolina.
Other cardiovascular disease in Greenville
- Gregory SanGreenville$88K
- David McNeelyGreenville$78K
- Christopher SalmonGreenville$54K
- Arthur EberlyGreenville$34K
- Tara HolderGreenville$20K
- Dev VazGreenville$14K
- Jon BittrickGreenville$13K
- James MerriamGreenville$11K
- Harold BlanksGreenville$9K
- Robert BiedermanCharleston$775K
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.