Alex Chang, MD
Transplant Surgery · Cincinnati, OHNPI 1578820015
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,405 of the $2,183 with a category attached, or 64.4%. Intuitive Surgical accounts for 75.3% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2024 at $1,670 and has fallen 90.6% since, to $157 in 2025.
Across 21 payments — averaging $103.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$2K
- Davol Inc.$161
- Medtronic$154
- Amgen$140
- Johnson & Johnson$39
- Otsuka Pharmaceutical Development & Commercialization, Inc.$27
- plus $17 from 1 others
What the payments were for
- Travel & lodging$1,40564%
- Food & beverage$77836%
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 | 14 | $1,644 |
| Davol Inc. | 1 | $161 |
| Medtronic | 1 | $154 |
| Amgen | 1 | $140 |
| Johnson & Johnson | 2 | $39 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 1 | $27 |
| La Jolla Pharmaceutical Company | 1 | $17 |
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$1,361
- Phasix Mesh$161
- Signia$154
- Tavneos$140
How this compares
$2,183 in reported general payments places this provider in the 60th percentile of 43 transplant surgery providers in Ohio.
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 |
|---|---|---|
| Valganciclovir Hcl | 11 | $2,845 |
| Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim | 13 | $56 |
Paid to pharmacies, not to this prescriber.
Other transplant surgery in Cincinnati
- Ervin WoodleCincinnati$200K
- Ralph QuillinCincinnati$132K
- David GerberCincinnati$9K
- Martha EstradaCincinnati$5K
- Steven RudichCincinnati$4K
- Amit TevarCincinnati$3K
- Philippe PaciCincinnati$1K
- Robert PlewsCincinnati$638
- Christine HaugenCincinnati$595
- Sara-Catherine ZinggCincinnati$515
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.