Monish Aron, MD
Urology · Los Angeles, CANPI 1033387345
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (29.9%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 79.4% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2019 at $5,004 and has fallen 95.6% since, to $218 in 2025.
Across 62 payments — averaging $242.64 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$12K
- Histosonics, Inc.$2K
- Medtronic$827
- AbbVie$232
- Johnson & Johnson$183
- Procept Biorobotics Corporation$145
- plus $102 from 3 others
Across 13 payments — averaging $6978.72 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.
- Janssen Research & Development, LLC$74K
- Histosonics, Inc.$16K
What the payments were for
- Speaking & faculty fees$4,00027%
- Travel & lodging$3,60024%
- Food & beverage$2,94420%
- Education$4,50030%
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 |
|---|---|---|
| Intuitive Surgical | 37 | $11,946 |
| Histosonics, Inc. | 2 | $1,608 |
| Medtronic | 10 | $827 |
| AbbVie | 7 | $232 |
| Johnson & Johnson | 2 | $183 |
| Procept Biorobotics Corporation | 1 | $145 |
| Axogen | 1 | $51 |
| Immunitybio, Inc. | 1 | $27 |
| Biotissue Holdings Inc. | 1 | $24 |
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.
- Da Vinci Surgical System$10,008
- DA VINCI SP$1,500
- LigaSure$271
- AbsorbaTack$229
- Erleada$146
- AKEEGA$146
- AquaBeam Robotic System$145
How this compares
$15,044 in reported general payments places this provider in the 85th percentile of 1,324 urology 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Tamsulosin Hcl | 13 | $92 |
Paid to pharmacies, not to this prescriber.
Other urology in Los Angeles
- Arie BelldegrunLos Angeles$1.8M
- Mihir DesaiLos Angeles$1.5M
- Stuart HoldenLos Angeles$1.1M
- William AronsonLos Angeles$540K
- Amir LebastchiLos Angeles$478K
- Nazy ZomorodianLos Angeles$309K
- Jeffrey Loh-DoyleLos Angeles$308K
- Siamak DaneshmandLos Angeles$306K
- Karim ChamieLos Angeles$291K
- Brian ShuchLos Angeles$166K
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.