Wei Zhou, MD
Vascular Surgery · Tucson, AZNPI 1790715167
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $8,076 of the $10,324 with a category attached, or 78.2%. 19 manufacturers reported payments, led by W. L. Gore & Associates, Inc. at 40.6% of the total. Reporting peaked in 2019 at $4,066 and has fallen 71.2% since, to $1,170 in 2025.
Across 155 payments — averaging $66.61 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- W. L. Gore & Associates, Inc.$4K
- Merck$1K
- Silk Road Medical, Inc.$1K
- Cook Medical LLC$864
- Medtronic$495
- Endologix LLC$408
- plus $2K from 13 others
Across 111 payments — averaging $1884.84 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.
- Biotissue Holdings Inc.$124K
- Artivion, Inc.$56K
- Endologix LLC$30K
What the payments were for
- Consulting fees$6006%
- Travel & lodging$1,64816%
- Food & beverage$8,07678%
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. | 90 | $4,189 |
| Merck | 10 | $1,477 |
| Silk Road Medical, Inc. | 9 | $1,003 |
| Cook Medical LLC | 11 | $864 |
| Medtronic(2 entities) | 6 | $495 |
| Endologix LLC | 5 | $408 |
| Boston Scientific | 5 | $342 |
| Penumbra, Inc. | 3 | $285 |
| Novo Nordisk | 4 | $264 |
| Abbott | 1 | $238 |
| Amgen | 3 | $219 |
| Baxter Healthcare | 1 | $125 |
| Stryker | 1 | $110 |
| Viz.ai, Inc. | 1 | $99 |
| Terumo Medical Corporation | 1 | $75 |
| Integra Lifesciences Corporation | 1 | $50 |
| Janssen Scientific Affairs, LLC | 1 | $38 |
| Shockwave Medical, Inc | 1 | $34 |
| Artivion, Inc. | 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.
- MK-1242$1,206
- ENROUTE Transcarotid Neuroprotection System$706
- ENHANCE Transcarotid Peripheral Access Kit$706
- ENROUTE .014 Guidewire$600
- ENROUTE Transcarotid Stent$600
- GORE EXCLUDER Thoracoabdominal Branch Endoprosthesis$427
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$294
- GORE VIABAHN VBX Balloon Expandable Endo$282
- Indigo System$252
- ESPRIT$238
- GORE TAG Conformable Thoracic Stent Graft$198
- GORE TAG Thoracic Endoprosthesis$182
- Zenith Alpha$177
- VenaSeal$158
- GORE TAG Conformable Thoracic Endoprosthesis$152
- C3 Delivery System$151
- VIABAHN VBX Balloon Expandable Endoprosthesis$139
- Cook Medical Zilver PTX$139
- ALTO$131
- Endurant$130
How this compares
$10,324 in reported general payments places this provider in the 60th percentile of 105 vascular surgery providers in Arizona.
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 | 13 | $22,496 |
| ClopidogrelClopidogrel Bisulfate | 19 | $236 |
| Cilostazol | 11 | $144 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in Tucson
- Joshua BaldermanTucson$135K
- John PacanowskiTucson$85K
- Joseph SabatTucson$48K
- Bernardo MendozaTucson$33K
- Federico YanquezTucson$31K
- Christopher ComptonTucson$27K
- Matthew NamannyTucson$25K
- Lauren BeliveauTucson$24K
- Eric BerensTucson$19K
- Layla LucasTucson$16K
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.