Maxwell Jen, MD
Emergency Medicine · Tustin, CANPI 1154688810
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $2,500 of the $2,902 with a category attached, or 86.1%. Lumenis BE Inc accounts for 86.1% of it on its own, with 5 other manufacturers making up the rest. Reporting peaked in 2021 at $2,692 and has fallen 98.4% since, to $44 in 2025. Among emergency 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 10 payments — averaging $290.20 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Lumenis BE Inc$3K
- Galderma Laboratories, L.p.$193
- Merz North America, Inc.$150
- AbbVie$25
- Revance Therapeutics, Inc.$19
- Coopersurgical, Inc.$15
What the payments were for
- Speaking & faculty fees$2,50086%
- Food & beverage$40214%
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 |
|---|---|---|
| Lumenis BE Inc | 1 | $2,500 |
| Galderma Laboratories, L.p. | 3 | $193 |
| Merz North America, Inc. | 3 | $150 |
| AbbVie | 1 | $25 |
| Revance Therapeutics, Inc. | 1 | $19 |
| Coopersurgical, Inc. | 1 | $15 |
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.
How this compares
$2,902 in reported general payments places this provider in the 95th percentile of 6,006 emergency 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 emergency medicine in Tustin
- Michael BlueLone Pine$915K
- Andrew AccardiEncinitas$383K
- Fredrick Melik-AbrahamianSylmar$354K
- Graham WalkerStanford$309K
- Douglas WhiteOakland$220K
- Paul PearigenSan Diego$208K
- Richard KozakMission Viejo$203K
- Oron FrenkelSan Francisco$201K
- Matthew KaplanMission Viejo$195K
- John LiboonPoway$188K
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.