Brenda Siman
Physician Assistant · Los Angeles, CANPI 1598474686
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 111 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 27 manufacturers, the largest accounting for just 12.9% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $1,503, more than ten times the $18 reported in 2023.
Across 111 payments — averaging $22.12 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bayer$318
- Amgen$308
- AstraZeneca$243
- Lilly USA, LLC$197
- Takeda Pharmaceuticals U.S.A., Inc.$183
- GSK$156
- plus $1K from 21 others
What the payments were for
- Food & beverage$2,456100%
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 |
|---|---|---|
| Bayer | 14 | $318 |
| Amgen | 14 | $308 |
| AstraZeneca | 11 | $243 |
| Lilly USA, LLC | 8 | $197 |
| Takeda Pharmaceuticals U.S.A., Inc. | 8 | $183 |
| GSK | 8 | $156 |
| Phathom Pharmaceuticals, Inc. | 5 | $113 |
| Lundbeck LLC | 5 | $107 |
| Axsome Therapeutics, Inc. | 4 | $104 |
| Bausch Health US, LLC | 5 | $101 |
| Novartis | 5 | $83 |
| Novo Nordisk | 3 | $69 |
| Pfizer | 3 | $60 |
| Boehringer Ingelheim | 2 | $58 |
| Invivyd Inc | 2 | $48 |
| Radius Health, Inc. | 2 | $43 |
| Exact Sciences | 2 | $40 |
| Eisai Inc. | 1 | $30 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $25 |
| Mylan Specialty L.p. | 1 | $25 |
| Aimmune Therapeutics, Inc. | 1 | $24 |
| Ironwood Pharmaceuticals, Inc | 1 | $24 |
| Sumitomo Pharma America, Inc. | 1 | $23 |
| Mannkind Corporation | 1 | $22 |
| IBSA Pharma Inc. | 1 | $20 |
| Sanofi Pasteur Inc. | 1 | $18 |
| Alnylam Pharmaceuticals Inc. | 1 | $16 |
How this compares
$2,456 in reported general payments places this provider in the 85th percentile of 10,423 physician assistant providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Atorvastatin Calcium | 20 | $205 |
| Metformin Hcl | 16 | $170 |
| Lisinopril | 11 | $97 |
| Amlodipine Besylate | 12 | $72 |
Paid to pharmacies, not to this prescriber.
Other physician assistant in Los Angeles
- Asia SullivanLos Angeles$61K
- Felipe FindleyLos Angeles$51K
- Melissa GriffinLos Angeles$39K
- 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
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.