Dennis Penner
Internal Medicine · Los Gatos, CANPI 1922057819
Payments from drug & device makers
Across 54 payments — averaging $20.58 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mylan Specialty L.p.$143
- Amgen$119
- GSK$93
- Johnson & Johnson$92
- AstraZeneca$73
- Amarin Pharma, Inc.$66
- plus $525 from 19 others
What the payments were for
- Food & beverage$1,09699%
- Education$161%
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 |
|---|---|---|
| Mylan Specialty L.p. | 7 | $143 |
| Amgen | 4 | $119 |
| GSK | 4 | $93 |
| Johnson & Johnson | 5 | $92 |
| AstraZeneca | 4 | $73 |
| Amarin Pharma, Inc. | 3 | $66 |
| Merck | 3 | $63 |
| Pfizer | 4 | $63 |
| Bausch Health US, LLC | 3 | $55 |
| Mallinckrodt Hospital Products Inc. | 1 | $35 |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $30 |
| Sanofi Pasteur Inc. | 1 | $27 |
| Insmed, Inc. | 1 | $27 |
| Baxter Healthcare | 1 | $27 |
| Philips North America LLC | 1 | $26 |
| Novo Nordisk | 1 | $23 |
| Boehringer Ingelheim | 1 | $21 |
| CMP Pharma, Inc. | 1 | $21 |
| Si-bone, Inc. | 1 | $20 |
| Therapeuticsmd, Inc. | 1 | $19 |
| AMAG Pharmaceuticals, Inc. | 1 | $16 |
| Seqirus USA Inc | 1 | $15 |
| Genentech USA, Inc. | 1 | $13 |
| Lilly USA, LLC | 1 | $13 |
| AbbVie | 1 | $12 |
How this compares
$1,111 in reported general payments places this provider in the 75th percentile of 13,581 internal medicine providers in California.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Atorvastatin Calcium | 46 | $647 |
| Levothyroxine Sodium | 30 | $398 |
| Rosuvastatin Calcium | 16 | $379 |
| Losartan Potassium | 25 | $346 |
| Amlodipine Besylate | 26 | $268 |
| Escitalopram Oxalate | 13 | $241 |
| Simvastatin | 13 | $150 |
| Hydrochlorothiazide | 12 | $127 |
| Metoprolol Tartrate | 14 | $66 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Los Gatos
- Andrew ChengSouth San Francisco$55.1M
- Joel NeutelTustin$34.9M
- Donald BrandonSan Diego$34M
- William TownerLos Angeles$27.4M
- Rahul AggarwalSan Francisco$24M
- Masoud AzizadNorthridge$21.1M
- Helen StaceyWalnut Creek$20.4M
- Rohit Loombala Jolla$15.1M
- Zeid KayaliColton$14.2M
- Alexandra DrakakiSanta Monica$14.2M
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.