Sandra Casillas
Physician Assistant · Santa Maria, CANPI 1164190153
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $1,119 of the $1,418 with a category attached, or 78.9%. It is spread thinly across 25 manufacturers, the largest accounting for just 15.8% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2022 at $810 and has fallen 82.0% since, to $145 in 2025.
Across 47 payments — averaging $30.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Seagen Inc.$224
- AVEO Pharmaceuticals, Inc.$131
- Gilead$125
- Bayer$116
- Exelixis Inc.$113
- Amgen$88
- plus $621 from 19 others
What the payments were for
- Food & beverage$1,11979%
- Education$29921%
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 |
|---|---|---|
| Seagen Inc. | 6 | $224 |
| AVEO Pharmaceuticals, Inc. | 3 | $131 |
| Gilead | 1 | $125 |
| Bayer | 2 | $116 |
| Exelixis Inc. | 1 | $113 |
| Amgen | 4 | $88 |
| GSK | 3 | $65 |
| Sobi, Inc | 2 | $63 |
| Daiichi Sankyo Inc. | 3 | $63 |
| Merck | 2 | $46 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $42 |
| E.r. Squibb & Sons, L.L.C. | 2 | $41 |
| Incyte Corporation | 2 | $40 |
| Sun Pharmaceutical Industries Inc. | 2 | $34 |
| AstraZeneca(2 entities) | 2 | $32 |
| Apellis Pharmaceuticals, Inc. | 1 | $26 |
| Pharmacosmos Therapeutics Inc. | 1 | $21 |
| Astellas Pharma US Inc | 1 | $21 |
| Pfizer | 1 | $20 |
| EMD Serono, Inc. | 1 | $19 |
| Kyowa Kirin, Inc. | 1 | $19 |
| Jazz Pharmaceuticals Inc. | 1 | $19 |
| Epizyme, Inc. | 1 | $18 |
| Novartis | 1 | $16 |
| Genentech USA, Inc. | 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
$1,418 in reported general payments places this provider in the 75th percentile of 10,423 physician assistant providers in California.
Other physician assistant in Santa Maria
- 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.