Payment overview · 2025
General Payments
$857.16
17 reported records · 7 companies
Healthcare provider profile · identity verified
William Samuel Ashwander, M.D.
Allopathic & Osteopathic Physicians|Surgery|Vascular Surgery · NORTH CHARLESTON, SC · NPI 1649414970
Verified facts
What the public records show
CMS Open Payments records show William Samuel Ashwander, M.D. received $857.16 in general payments during 2025 across 17 reported records.
W. L. Gore & Associates, Inc. accounted for 29.6% of that reported general-payment amount.
The Open Payments records used for this analysis explicitly named 16 associated products.
These records do not establish that a payment influenced prescribing or medical care.
Separate record types
Research & Ownership
Research Payments (direct recipient): not present in the loaded data
Associated Research Funding (for example, named PI): not present in the loaded data
Ownership / Investment: not present in the loaded data
These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.
Who paid this doctor?
Companies in 2025 General Payments
| Reported company | Canonical company | Amount | Share | Records | Year |
|---|---|---|---|---|---|
| W. L. Gore & Associates, Inc. | Unresolved — no canonical attribution shown | $253.99 | 29.6% | 5 | 2025 |
| Endologix LLC | Unresolved — no canonical attribution shown | $196.80 | 23.0% | 1 | 2025 |
| Stryker Corporation | Unresolved — no canonical attribution shown | $190.94 | 22.3% | 5 | 2025 |
| Medtronic, Inc. |
Medtronic, Inc. exact · evidence 2025-07-22 |
$109.51 | 12.8% | 3 | 2025 |
| LeMaitre Vascular, Inc. | Unresolved — no canonical attribution shown | $71.07 | 8.3% | 1 | 2025 |
| Edwards Lifesciences Corporation | Unresolved — no canonical attribution shown | $20.76 | 2.4% | 1 | 2025 |
| AngioDynamics, Inc. | Unresolved — no canonical attribution shown | $14.09 | 1.6% | 1 | 2025 |
What were the payments for?
Payment categories
| Category | Amount | Records |
|---|---|---|
| Food and Beverage | $857.16 | 17 |
A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.
Analysis 1 · Payment-linked products
Products named in Open Payments records
| Reported product | Type | Reported company | Related amount* | Records | Year |
|---|---|---|---|---|---|
| AFX2 Bifurcated Endograft System Normalized: afx2 bifurcated endograft system |
Device | Endologix LLC | $196.80 | 1 | 2025 |
Source payment records
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| Ovation iX Iliac Stent Graft Normalized: ovation ix iliac stent graft |
Device | Endologix LLC | $196.80 | 1 | 2025 |
Source payment records
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| GORE EXCLUDER AAA Endoprosthesis Normalized: gore excluder aaa endoprosthesis |
Device | W. L. Gore & Associates, Inc. | $148.35 | 1 | 2025 |
Source payment records
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| TRIVEX SYSTEM Normalized: trivex system |
Device | LeMaitre Vascular, Inc. | $71.07 | 1 | 2025 |
Source payment records
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| CLOTTRIEVER BOLD CATHETER Normalized: clottriever bold catheter |
Device | Stryker Corporation | $68.55 | 1 | 2025 |
Source payment records
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| ARTIX MT Normalized: artix mt |
Device | Stryker Corporation | $62.68 | 1 | 2025 |
Source payment records
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| GORE VIABAHN Endoprosthesis Normalized: gore viabahn endoprosthesis |
Device | W. L. Gore & Associates, Inc. | $61.22 | 2 | 2025 |
Source payment records
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| CT THROMBECTOMY SYSTEM KIT Normalized: ct thrombectomy system kit |
Device | Stryker Corporation | $59.71 | 3 | 2025 |
Source payment records
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| FLOWTRIEVER CATHETER, S Normalized: flowtriever catheter s |
Device | Stryker Corporation | $59.71 | 3 | 2025 |
Source payment records
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| VALIANT CAPTIVIA Normalized: valiant captivia |
Device | Medtronic, Inc. | $42.12 | 1 | 2025 |
Source payment records
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| IN.PACT AV Normalized: in pact av |
Device | Medtronic, Inc. | $40.37 | 1 | 2025 |
Source payment records
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| GORE TAG Thoracic Branch Endoprosthesis Normalized: gore tag thoracic branch endoprosthesis |
Device | W. L. Gore & Associates, Inc. | $28.27 | 1 | 2025 |
Source payment records
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| HAWKONE Normalized: hawkone |
Device | Medtronic, Inc. | $27.02 | 1 | 2025 |
Source payment records
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| Edwards SAPIEN 3 Ultra Transcatheter Heart Valve Normalized: edwards sapien 3 ultra transcatheter heart valve |
Device | Edwards Lifesciences Corporation | $20.76 | 1 | 2025 |
Source payment records
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| VIABAHN Endoprosthesis with PROPATEN Bioactive Surface Normalized: viabahn endoprosthesis with propaten bioactive surface |
Device | W. L. Gore & Associates, Inc. | $16.15 | 1 | 2025 |
Source payment records
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| AURYON LASER SYSTEM 100-120 VAC Normalized: auryon laser system 100 120 vac |
Device | AngioDynamics, Inc. | $14.09 | 1 | 2025 |
Source payment records
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* Product-associated amounts are non-additive because one payment record may name more than one product.
These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.
Public prescribing for products named in payments
No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.
The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.
Analysis 2 · Same-company prescribing overlap
Drugs reported in other payments from the same company that also appear in Medicare Part D
This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.
No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.
These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.
Public Medicare Part D data
Provider-and-drug rows loaded for 2024
| Brand | Generic | Claims | Beneficiaries |
|---|---|---|---|
| Clopidogrel | Clopidogrel Bisulfate | 57 | 16 |
| Eliquis | Apixaban | 24 | suppressed |
| Tramadol Hcl | Tramadol Hcl | 24 | 17 |
| Atorvastatin Calcium | Atorvastatin Calcium | 20 | suppressed |
| Diazepam | Diazepam | 16 | 16 |
| Simvastatin | Simvastatin | 13 | suppressed |
Timeline
Payment and prescribing data by year
Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.
| Year | General Payments | Main payer | Explicit products | Company overlaps | Part D coverage |
|---|---|---|---|---|---|
| 2025 | $857.16 · 17 records | W. L. Gore & Associates, Inc. | AFX2 Bifurcated Endograft System, ARTIX MT, AURYON LASER SYSTEM 100-120 VAC, CLOTTRIEVER BOLD CATHETER, CT THROMBECTOMY SYSTEM KIT, Edwards SAPIEN 3 Ultra Transcatheter Heart Valve, FLOWTRIEVER CATHETER, S, GORE EXCLUDER AAA Endoprosthesis, GORE TAG Thoracic Branch Endoprosthesis, GORE VIABAHN Endoprosthesis, HAWKONE, IN.PACT AV, Ovation iX Iliac Stent Graft, TRIVEX SYSTEM, VALIANT CAPTIVIA, VIABAHN Endoprosthesis with PROPATEN Bioactive Surface | — | — |
| 2024 | — | — | — | — | Complete |
Questions to ask
Questions you could discuss with your doctor
- Are there reasonable alternatives I should understand when we discuss treatment options?
- How should I interpret the industry-payment records shown here in the context of my care?
These are general questions generated from reviewed templates. They are not personalized medical advice.
Sources and limitations
How to read this page
- Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
- Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
- Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
- Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
- When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.
Loaded source releases
| Dataset | Year | Publication | Source |
|---|---|---|---|
| CMS Open Payments — General Payments | 2025 | 2026-06-30 | Original source |
| Medicare Part D Prescribers by Provider and Drug | 2024 | 2026-05-06 | Original source |
| NPPES Data Dissemination V2 | current / reference data | 2026-08-10 | Original source |
Full methodology · Questions & answers · Report a possible error