Martin Leung
Family Medicine · San Francisco, CANPI 1831190537
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.9% of the total across 182 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 16 manufacturers reported payments, led by Johnson & Johnson at 30.9% of the total. Reporting peaked in 2019 at $3,478 and has fallen 90.4% since, to $333 in 2022. Among family medicine clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 182 payments — averaging $31.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$2K
- Gilead$620
- Lilly USA, LLC$581
- Novo Nordisk$558
- AstraZeneca$548
- Novartis$374
- plus $1K from 10 others
What the payments were for
- Food & beverage$5,780100%
- Education$60%
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 |
|---|---|---|
| Johnson & Johnson | 62 | $1,787 |
| Gilead | 9 | $620 |
| Lilly USA, LLC | 17 | $581 |
| Novo Nordisk | 45 | $558 |
| AstraZeneca | 13 | $548 |
| Novartis | 10 | $374 |
| Amgen | 4 | $357 |
| AbbVie | 6 | $269 |
| GSK | 4 | $190 |
| Boehringer Ingelheim | 3 | $171 |
| Optinose US, Inc. | 1 | $121 |
| Merck | 1 | $78 |
| Biohaven Pharmaceuticals, Inc. | 2 | $55 |
| Arbor Pharmaceuticals, Inc. | 3 | $38 |
| E.r. Squibb & Sons, L.L.C. | 1 | $22 |
| Pfizer | 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
$5,787 in reported general payments places this provider in the 90th percentile of 10,533 family medicine providers in California.
Other family medicine in San Francisco
- Nasser MohamedSan Francisco$278K
- Colleen RileySan Francisco$115K
- Konstantin BukovSan Francisco$75K
- Sherly SoleimanEncino$1.2M
- Pamela KushnerLos Angeles$1.2M
- Sujata NarayanStanford$1.2M
- Jeffrey UngerChino$906K
- Alexander RivkinLos Angeles$866K
- Scott HowellLos Angeles$793K
- Derrick ButlerLos Angeles$692K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.