Dung Trinh, MD
Internal Medicine · Mission Viejo, CANPI 1306827670
Payments from drug & device makers
Across 209 payments — averaging $41,915 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Eli Lilly$7.4M
- E.r. Squibb & Sons, L.L.C.$712K
- Genentech, Inc.$246K
- Biogen$194K
- Otsuka America Pharmaceutical, Inc.$93K
- Otsuka Pharmaceutical Development & Commercialization, Inc.$66K
- plus $22K from 16 others
Across 6 payments — averaging $32,364 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Eli Lilly$194K
What the payments were for
- Consulting fees$19,19116%
- Speaking & faculty fees$79,95468%
- Travel & lodging$13,80612%
- Food & beverage$5,1664%
- Education$170%
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 |
|---|---|---|
| Eli Lilly | 13 | $7,427,030 |
| E.r. Squibb & Sons, L.L.C. | 7 | $711,600 |
| Genentech, Inc. | 8 | $246,339 |
| Biogen | 7 | $194,167 |
| Otsuka America Pharmaceutical, Inc. | 113 | $93,420 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 6 | $65,752 |
| Eisai Inc. | 28 | $19,086 |
| Merck | 8 | $1,406 |
| Lilly USA, LLC | 4 | $262 |
| Amgen | 2 | $241 |
| Genentech USA, Inc. | 1 | $150 |
| F. Hoffmann-la Roche AG | 2 | $134 |
| Phathom Pharmaceuticals, Inc. | 1 | $124 |
| Gilead | 1 | $120 |
| Bard Peripheral Vascular, Inc. | 1 | $119 |
| Teva Pharmaceuticals USA, Inc. | 1 | $116 |
| Lundbeck LLC | 1 | $41 |
| ITI, Inc. (d/b/a Intra-cellular Therapies, Inc.) | 1 | $29 |
| Linus Health, Inc. | 1 | $29 |
| GSK | 1 | $28 |
| UCB SA | 1 | $26 |
| GE HealthCare | 1 | $21 |
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.
- REXULTI$91,887
- Leqembi$18,586
- ADUHELM$358
- VOQUEZNA$124
- Otezla$121
- EVENITY$120
- Vemlidy$120
- ArmonAir Digihaler$116
- ProAir Digihaler$116
- AirDuo RespiClick$116
How this compares
$8,760,240 in reported general payments places this provider in the 95th percentile of 13,581 internal medicine providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other internal medicine in Mission Viejo
- 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).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.