Catherine Liu
Physician Assistant · Monterey Park, CANPI 1285960070
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 85 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 AstraZeneca at 25.9% of the total. 2025 is the largest year on record at $2,027, 4.8 times the $423 reported in 2021. Among physician assistant 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 85 payments — averaging $61.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1K
- Bayer$966
- Lilly USA, LLC$623
- Amgen$419
- Novo Nordisk$373
- GSK$258
- plus $1K from 12 others
Across 2 payments — averaging $19,618 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.
- Amgen$39K
What the payments were for
- Food & beverage$5,200100%
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 |
|---|---|---|
| AstraZeneca | 18 | $1,348 |
| Bayer | 21 | $966 |
| Lilly USA, LLC | 7 | $623 |
| Amgen(2 entities) | 7 | $419 |
| Novo Nordisk | 5 | $373 |
| GSK | 3 | $258 |
| Exact Sciences | 9 | $258 |
| Medtronic | 1 | $150 |
| Boehringer Ingelheim | 2 | $147 |
| Axsome Therapeutics, Inc. | 1 | $140 |
| Corcept Therapeutics | 1 | $140 |
| Regeneron Healthcare Solutions, Inc. | 1 | $122 |
| Teva Pharmaceuticals USA, Inc. | 1 | $87 |
| Pfizer | 3 | $67 |
| Sanofi-aventis U.S. LLC | 2 | $46 |
| Amarin Pharma, Inc. | 1 | $21 |
| Johnson & Johnson | 1 | $16 |
| Merck | 1 | $16 |
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
$5,200 in reported general payments places this provider in the 90th percentile of 10,423 physician assistant providers in California.
Other physician assistant in Monterey Park
- Andrea NguyenIrvine$1M
- Mikhail AlperMadera$889K
- Erin JensenUpland$716K
- Franklin ClineSacramento$458K
- Carla CrespoMarina del Rey$297K
- Katherine OsakiEl Centro$274K
- Shawna JonesFountain Valley$266K
- Heather AustinSalinas$219K
- Andrea FoxStanford$172K
- Asma HussainiThousand Oaks$102K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.