Ron Dunchok
Internal Medicine · San Dimas, CANPI 1356331730
Payments from drug & device makers
Across 166 payments — averaging $17.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$505
- Johnson & Johnson$436
- Novartis$263
- Lilly USA, LLC$199
- Sunovion Pharmaceuticals Inc.$187
- AbbVie$150
- plus $1K from 24 others
What the payments were for
- Food & beverage$2,953100%
- Education$50%
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 |
|---|---|---|
| Pfizer | 31 | $505 |
| Johnson & Johnson | 34 | $436 |
| Novartis | 15 | $263 |
| Lilly USA, LLC | 10 | $199 |
| Sunovion Pharmaceuticals Inc. | 10 | $187 |
| AbbVie | 7 | $150 |
| Amarin Pharma, Inc. | 7 | $137 |
| Novo Nordisk | 6 | $105 |
| Gilead | 1 | $101 |
| Amgen | 4 | $100 |
| Teva Pharmaceuticals USA, Inc. | 6 | $97 |
| Boehringer Ingelheim | 4 | $80 |
| Astellas Pharma US Inc | 4 | $74 |
| E.r. Squibb & Sons, L.L.C. | 3 | $61 |
| Takeda Pharmaceuticals U.S.A., Inc. | 3 | $57 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $45 |
| SK Life Science, Inc. | 2 | $43 |
| Otsuka America Pharmaceutical, Inc. | 2 | $42 |
| Philips North America LLC | 2 | $35 |
| Biohaven Pharmaceuticals, Inc. | 2 | $30 |
| Avanir Pharmaceuticals, Inc. | 1 | $26 |
| Sumitomo Pharma America, Inc. | 1 | $24 |
| Abbott | 1 | $23 |
| Eisai Inc. | 1 | $23 |
| GSK | 1 | $21 |
| Biogen | 1 | $20 |
| Phadia US Inc. | 1 | $19 |
| Sanofi-aventis U.S. LLC | 1 | $19 |
| Biohaven Pharmaceutical Holding Company Ltd. | 1 | $18 |
| Dexcom, Inc. | 1 | $18 |
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.
- Veklury$101
How this compares
$2,958 in reported general payments places this provider in the 85th percentile of 13,581 internal medicine providers in California.
Other internal medicine in San Dimas
- 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.