Rosario Hwang, MD
Surgical Oncology · Houston, TXNPI 1396838330
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $18,129 of the $25,338 with a category attached, or 71.5%. Intuitive Surgical accounts for 99.2% of it on its own, with 1 other manufacturer making up the rest. Reporting peaked in 2019 at $12,029 and has fallen 94.4% since, to $678 in 2025. Among surgical oncology clinicians in TX with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 94 payments — averaging $269.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$25K
- Elucent Medical$196
Across 16 payments — averaging $7077.21 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.
- Intuitive Surgical Operations, Inc.$113K
What the payments were for
- Speaking & faculty fees$5,00020%
- Travel & lodging$18,12972%
- Food & beverage$1,8337%
- Education$3761%
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 | 93 | $25,142 |
| Elucent Medical | 1 | $196 |
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$23,206
How this compares
$25,338 in reported general payments places this provider in the 90th percentile of 191 surgical oncology providers in Texas.
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 surgical oncology in Houston
- Merrick RossHouston$216K
- Kelly HuntHouston$104K
- Michael KimHouston$51K
- Jeffrey GershenwaldHouston$50K
- Naruhiko IkomaHouston$48K
- Anthony LucciHouston$41K
- Helmi KhadraHouston$39K
- Hop Tran CaoHouston$32K
- Amanda ArringtonHouston$13K
- Jean-Nicolas VautheyHouston$13K
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.