Robert Buster
Geriatric Medicine · Orange, CANPI 1841343076
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.3% of the total across 349 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 36 manufacturers, the largest accounting for just 19.6% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $5,311 and has fallen 86.7% since, to $708 in 2022. Among geriatric medicine clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 349 payments — averaging $23.26 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$2K
- AstraZeneca$1K
- Johnson & Johnson$604
- Amarin Pharma, Inc.$575
- Sanofi-aventis U.S. LLC$480
- GSK$397
- plus $3K from 30 others
What the payments were for
- Consulting fees$120%
- Food & beverage$8,06099%
- Education$461%
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 | 37 | $1,592 |
| AstraZeneca | 41 | $1,233 |
| Johnson & Johnson | 33 | $604 |
| Amarin Pharma, Inc. | 25 | $575 |
| Sanofi-aventis U.S. LLC | 27 | $480 |
| GSK | 28 | $397 |
| Boehringer Ingelheim | 15 | $380 |
| Novartis | 12 | $352 |
| Pfizer | 16 | $292 |
| Sanofi Pasteur Inc. | 4 | $260 |
| Novo Nordisk | 15 | $238 |
| AbbVie(2 entities) | 12 | $198 |
| Lilly USA, LLC | 14 | $170 |
| Biohaven Pharmaceuticals, Inc. | 3 | $149 |
| Insmed, Inc. | 8 | $146 |
| Philips North America LLC | 8 | $144 |
| Bayer | 1 | $121 |
| Merck | 10 | $116 |
| Kowa Pharmaceuticals America, Inc. | 6 | $99 |
| Scilex Pharmaceuticals Inc. | 5 | $72 |
| Shire North American Group Inc | 4 | $67 |
| Aytu Biopharma, Inc. | 3 | $53 |
| Regeneron Healthcare Solutions, Inc. | 2 | $48 |
| Astellas Pharma US Inc | 3 | $47 |
| E.r. Squibb & Sons, L.L.C. | 3 | $42 |
| Teva Pharmaceuticals USA, Inc. | 2 | $42 |
| Advanced Respiratory, Inc | 1 | $36 |
| Arbor Pharmaceuticals, Inc. | 2 | $30 |
| Radius Health, Inc. | 1 | $29 |
| Circassia Inc. | 2 | $25 |
| Phadia US Inc. | 1 | $19 |
| Antares Pharma, Inc. | 1 | $16 |
| Mylan Specialty L.p. | 1 | $13 |
| Mayne Pharma Commercial LLC | 1 | $12 |
| Genentech USA, Inc. | 1 | $11 |
| Medicure Pharma Inc. | 1 | $11 |
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.
- Repatha$362
- Vascepa$261
- FARXIGA$256
- Otezla$240
- FLUZONE HIGH-DOSE$237
- XARELTO$229
- FLUBLOK QUADRIVALENT$127
- NO PRODUCT DISCUSSED$127
- ENTRESTO$121
- Prolia$121
- EVENITY$121
- Kerendia$121
- NURTEC ODT$121
- PRALUENT$120
- AIMOVIG$120
- FLUZONE QUADRIVALENT$110
- FLUBLOK QUADRIVALENT NORTHERN HEMISPHERE$110
- TEZSPIRE$105
How this compares
$8,117 in reported general payments places this provider in the 95th percentile of 494 geriatric medicine providers in California.
Other geriatric medicine in Orange
- Angela TanOrange$9K
- Shashidhar AcharyaOrange$6K
- Robert FeldmanLaguna Hills$1.2M
- Oscar ChienSan Gabriel$208K
- Anders NybergSan Diego$160K
- Paul AisenSan Diego$70K
- Wayne ChenLos Angeles$40K
- Vincent HoLancaster$32K
- Kathryn SewellSan Francisco$26K
- Stephen HenryPasadena$25K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.