Zachary Williams, MD
Surgery · Wilmington, NCNPI 1407147275
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $7,505 of the $10,082 with a category attached, or 74.4%. 18 manufacturers reported payments, led by W. L. Gore & Associates, Inc. at 39.6% of the total. Reporting peaked in 2019 at $5,196 and has fallen 76.5% since, to $1,224 in 2025.
Across 113 payments — averaging $89.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$4K
- Cook Medical LLC$2K
- Medtronic$691
- Baxter Healthcare$478
- Inari Medical, Inc.$471
- Endologix LLC$421
- plus $2K from 12 others
Across 19 payments — averaging $5689.96 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.
- Laminate Medical Technologies Inc.$71K
- Silk Road Medical, Inc.$37K
What the payments were for
- Grants$1,37514%
- Travel & lodging$3574%
- Food & beverage$7,50574%
- Education$8458%
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. | 66 | $3,995 |
| Cook Medical LLC | 9 | $2,157 |
| Medtronic(2 entities) | 8 | $691 |
| Baxter Healthcare | 2 | $478 |
| Inari Medical, Inc. | 3 | $471 |
| Endologix LLC | 5 | $421 |
| Bolton Medical Inc | 3 | $344 |
| Cardiovascular Systems Inc. | 4 | $255 |
| Boston Scientific | 3 | $248 |
| Shockwave Medical, Inc | 1 | $171 |
| Veryan Medical Incorporated | 1 | $146 |
| Philips North America LLC | 2 | $135 |
| Stimlabs LLC | 1 | $131 |
| Penumbra, Inc. | 1 | $127 |
| Integra Lifesciences Corporation | 1 | $124 |
| Shape Memory Medical Inc. | 1 | $98 |
| Bard Peripheral Vascular, Inc. | 1 | $75 |
| Lemaitre Vascular, 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.
- EXCLUDER AAA Endoprosthesis$820
- FLOWTRIEVER CATHETER, S$602
- VIABAHN VBX Balloon Expandable Endoprosthesis$485
- INTEGRA$373
- PREVELEAK$330
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$314
- Endurant$298
- Zilver PTX$258
- ENDOCROSS Device$257
- Torus Stent Graft System$257
- GORE VIABAHN VBX Balloon Expandable Endo$253
- CT THROMBECTOMY SYSTEM KIT$243
- Cook Medical AAA$240
- Conformable TAG Thoracic Endoprosthesis$211
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$171
- FLOSEAL$148
- BioMimics 3D Vascular Stent System$146
- TREO ABDOMINAL STENT-GRAFT SYSTEM$138
- GORE TAG Conformable Thoracic Endoprosthesis$136
- Vascular Graft$133
How this compares
$10,082 in reported general payments places this provider in the 75th percentile of 970 surgery providers in North 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.
Other surgery in Wilmington
- William HopeWilmington$350K
- Mark MedleyWilmington$206K
- Kamran GoudarziWilmington$132K
- Ellis TinsleyWilmington$56K
- Jayme StokesWilmington$32K
- Brant HenifordCharlotte$831K
- Vedra AugensteinCharlotte$789K
- John MartinieCharlotte$712K
- Dana PortenierDurham$702K
- Paul EnochsCary$595K
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.