William Duong, MD
Vascular Surgery · Loma Linda, CANPI 1427402445
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (53.7%), food and beverage and grants — rather than concentrated in one kind of arrangement. Medtronic accounts for 78.2% of it on its own, with 17 other manufacturers making up the rest. 2025 is the largest year on record at $16,083, more than ten times the $41 reported in 2021.
Across 116 payments — averaging $252.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$23K
- Abbott$2K
- W. L. Gore & Associates, Inc.$1K
- Silk Road Medical, Inc.$488
- Integra Lifesciences Corporation$487
- Shockwave Medical, Inc$450
- plus $1K from 12 others
What the payments were for
- Speaking & faculty fees$1,2804%
- Grants$5,06717%
- Travel & lodging$15,71154%
- Food & beverage$5,85520%
- Education$9313%
- Other$4051%
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 |
|---|---|---|
| Medtronic | 47 | $22,864 |
| Abbott | 13 | $2,467 |
| W. L. Gore & Associates, Inc. | 12 | $1,083 |
| Silk Road Medical, Inc. | 6 | $488 |
| Integra Lifesciences Corporation | 8 | $487 |
| Shockwave Medical, Inc | 3 | $450 |
| Boston Scientific | 8 | $423 |
| Penumbra, Inc. | 2 | $199 |
| Acera Surgical, Inc. | 1 | $185 |
| Cook Medical LLC | 4 | $178 |
| Bolton Medical Inc | 2 | $153 |
| Terumo Medical Corporation | 3 | $68 |
| Imperative Care, Inc | 2 | $46 |
| Innovation Technologies Inc | 1 | $44 |
| Philips North America LLC | 1 | $35 |
| Bard Peripheral Vascular, Inc. | 1 | $33 |
| Stryker | 1 | $23 |
| Artivion, Inc. | 1 | $22 |
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.
- ENDURANT IIS$21,581
- SUPERA$1,140
- PERCLOSE PROGLIDE$874
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$418
- ENROUTE Transcarotid Neuroprotection System$293
- ENROUTE Transcarotid Stent$293
- GORE VIABAHN VBX Balloon Expandable Endo$284
- GORE TAG Thoracic Branch Endoprosthesis$259
- MICROMATRIX$245
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$186
- Restrata Wound Matrix$185
- Ranger$175
- Absorb GT1$164
- CYTAL$159
- Indigo System$138
- RELAY THORACIC STENT-GRAFT WITH PLUS DELIVERY SYSTEM$136
- ESPRIT$133
- Zilver PTX$115
How this compares
$29,248 in reported general payments places this provider in the 85th percentile of 519 vascular surgery providers in California.
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 vascular surgery in Loma Linda
- Theodore TeruyaLoma Linda$43K
- Son DuongFountain Valley$503K
- Venita ChandraPalo Alto$488K
- Sukgu HanLos Angeles$477K
- Leigh Ann ObanionFresno$469K
- Trevor DerderianRancho Mirage$359K
- Karthikeshwar KasirajanPalo Alto$349K
- Johnathon RolloLos Angeles$337K
- Melissa LojaFairfield$272K
- Jason LeePalo Alto$228K
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.