Roy Gan, MD
Surgery · Las Vegas, NVNPI 1710220421
Payments from drug & device makers
What this record shows
This record is dominated by education: $8,000 of the $11,740 with a category attached, or 68.1%. Intuitive Surgical accounts for 88.9% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2023 at $5,818 and has fallen 96.8% since, to $189 in 2025.
Across 41 payments — averaging $286.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$10K
- AbbVie$629
- Medtronic$390
- Bard Peripheral Vascular, Inc.$99
- Balt USA, LLC$90
- Johnson & Johnson$47
- plus $46 from 1 others
What the payments were for
- Travel & lodging$1,69714%
- Food & beverage$2,02617%
- Education$8,00068%
- Gifts$160%
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 | 28 | $10,438 |
| AbbVie | 5 | $629 |
| Medtronic | 3 | $390 |
| Bard Peripheral Vascular, Inc. | 1 | $99 |
| Balt USA, LLC | 1 | $90 |
| Johnson & Johnson | 2 | $47 |
| Davol Inc. | 1 | $46 |
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.
- DAVINCI XI$7,000
- Da Vinci Surgical System$1,686
- DA VINCI SP$828
- STRATTICE RECONSTRUCTIVE TISSUE MATRIX BPS$412
- NATRELLE SALINE-FILLED BREAST IMPLANTS$412
- APPOSE ULC$201
- Signia$174
How this compares
$11,740 in reported general payments places this provider in the 75th percentile of 209 surgery providers in Nevada.
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 |
|---|---|---|
| Pantoprazole Sodium | 84 | $635 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 94 | $506 |
| Ondansetron OdtOndansetron | 40 | $261 |
| Ibuprofen | 97 | $241 |
| Methocarbamol | 29 | $191 |
| Neomycin Sulfate | 13 | $63 |
| Metronidazole | 15 | $24 |
Paid to pharmacies, not to this prescriber.
Other surgery in Las Vegas
- Arthur FuscoLas Vegas$155K
- Ovunc BardakciogluLas Vegas$128K
- Jiashou XuLas Vegas$79K
- Charles ChesnutLas Vegas$76K
- Damon SchroerLas Vegas$74K
- Craig IwamotoLas Vegas$48K
- Arnold ChungLas Vegas$48K
- Stefan ChockLas Vegas$46K
- Matthew JohnsonLas Vegas$40K
- Clyde EllisLas Vegas$39K
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.