Stuart Willson
Internal Medicine · Los Angeles, CANPI 1841262045
Payments from drug & device makers
Across 357 payments — averaging $18.84 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Lilly USA, LLC$1K
- Novo Nordisk$1K
- Amgen$487
- Bayer$472
- AbbVie$422
- Xeris Pharmaceuticals, Inc.$322
- plus $3K from 29 others
What the payments were for
- Food & beverage$6,707100%
- Gifts$180%
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 |
|---|---|---|
| Lilly USA, LLC | 73 | $1,129 |
| Novo Nordisk | 71 | $1,046 |
| Amgen | 23 | $487 |
| Bayer | 20 | $472 |
| AbbVie | 18 | $422 |
| Xeris Pharmaceuticals, Inc. | 18 | $322 |
| GSK | 21 | $318 |
| Boehringer Ingelheim | 12 | $303 |
| Mannkind Corporation | 15 | $290 |
| Mallinckrodt Hospital Products Inc. | 10 | $181 |
| Amarin Pharma, Inc. | 9 | $176 |
| Cvrx, Inc. | 1 | $169 |
| AstraZeneca(2 entities) | 7 | $159 |
| Insulet Corporation | 8 | $155 |
| Dexcom, Inc. | 7 | $151 |
| Alvogen Inc | 4 | $98 |
| Mallinckrodt Enterprises LLC | 4 | $91 |
| Abbott | 4 | $88 |
| Corcept Therapeutics | 4 | $76 |
| Radius Health, Inc. | 3 | $75 |
| Pfizer | 3 | $71 |
| IBSA Pharma Inc. | 3 | $59 |
| Merck | 3 | $49 |
| Johnson & Johnson | 2 | $48 |
| Esperion Therapeutics, Inc. | 2 | $48 |
| Ascensia Diabetes Care US Inc. | 2 | $37 |
| Exact Sciences | 2 | $36 |
| BD | 1 | $28 |
| Fresenius Kabi USA, LLC | 1 | $27 |
| Otsuka America Pharmaceutical, Inc. | 1 | $26 |
| Sanofi-aventis U.S. LLC | 1 | $20 |
| Kyowa Kirin, Inc. | 1 | $18 |
| Ascend Therapeutics US, LLC | 1 | $18 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $17 |
| Tandem Diabetes Care, Inc. | 1 | $17 |
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.
How this compares
$6,725 in reported general payments places this provider in the 90th percentile of 13,581 internal medicine providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Amlodipine Besylate | 27 | $509 |
| Atorvastatin Calcium | 52 | $474 |
| Valsartan-HydrochlorothiazideValsartan/Hydrochlorothiazide | 11 | $348 |
| Losartan Potassium | 12 | $277 |
| Pravastatin Sodium | 13 | $166 |
| Omeprazole | 13 | $136 |
| Metformin Hcl | 20 | $111 |
| Hydrochlorothiazide | 11 | $21 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Los Angeles
- William TownerLos Angeles$27.4M
- Herbert EradatLos Angeles$11.6M
- Deborah WongLos Angeles$10.7M
- Robin KelleyLos Angeles$5.8M
- David GuzmanLos Angeles$4.3M
- Siwen Hu-LieskovanLos Angeles$2.9M
- Andrew ChengSouth San Francisco$55.1M
- Joel NeutelTustin$34.9M
- Donald BrandonSan Diego$34M
- Rahul AggarwalSan Francisco$24M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.