William McAllister
Internal Medicine · Corte Madera, CANPI 1821072646
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 177 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 18 manufacturers reported payments, led by Amgen at 39.1% of the total. Reporting peaked in 2020 at $1,361 and has fallen 93.2% since, to $92 in 2022.
Across 177 payments — averaging $17.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$1K
- Boehringer Ingelheim$441
- Pfizer$276
- Kowa Pharmaceuticals America, Inc.$266
- AbbVie$233
- AstraZeneca$106
- plus $537 from 12 others
What the payments were for
- Food & beverage$3,051100%
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 |
|---|---|---|
| Amgen | 64 | $1,192 |
| Boehringer Ingelheim | 35 | $441 |
| Pfizer | 15 | $276 |
| Kowa Pharmaceuticals America, Inc. | 16 | $266 |
| AbbVie(2 entities) | 12 | $233 |
| AstraZeneca | 6 | $106 |
| Bausch Health US, LLC | 5 | $99 |
| Regeneron Healthcare Solutions, Inc. | 4 | $79 |
| Johnson & Johnson | 3 | $69 |
| Novo Nordisk | 3 | $55 |
| Endo Pharmaceuticals Inc. | 3 | $48 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $42 |
| E.r. Squibb & Sons, L.L.C. | 2 | $38 |
| Merck | 2 | $36 |
| Eisai Inc. | 1 | $22 |
| Lilly USA, LLC | 1 | $19 |
| Astellas Pharma US Inc | 1 | $17 |
| Daiichi Sankyo Inc. | 1 | $14 |
How this compares
$3,051 in reported general payments places this provider in the 85th percentile of 13,581 internal medicine providers in California.
Other internal medicine in Corte Madera
- Andrew ChengSouth San Francisco$55.1M
- Tung NgoNewport Beach$4.9M
- Christian EversullStanford$2.9M
- Christian SandrockSacramento$2.1M
- Hatim HusainSan Diego$2M
- Teck LingPalo Alto$1.1M
- Hyong Kimla Jolla$1M
- Rohit Loombala Jolla$965K
- Fred CohenSan Francisco$929K
- Steven EdelmanSan Diego$863K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.