Amit Mathur, MD
Transplant Surgery · Scottsdale, AZNPI 1891814034
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (49.7%), consulting fees and other — rather than concentrated in one kind of arrangement. 10 manufacturers reported payments, led by Transmedics, Inc. at 49.7% of the total. Reporting peaked in 2024 at $5,813 and has fallen 71.3% since, to $1,670 in 2025.
Across 28 payments — averaging $627.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Transmedics, Inc.$9K
- Intuitive Surgical$3K
- AstraZeneca$3K
- Genentech USA, Inc.$2K
- Paragonix Technologies, Inc.$514
- Dilon Technologies, Inc.$289
- plus $451 from 4 others
Across 2 payments — averaging $145,450 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.
- Transmedics, Inc.$291K
What the payments were for
- Consulting fees$4,15524%
- Travel & lodging$8,72950%
- Food & beverage$1,6589%
- Education$260%
- Other$3,00017%
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 |
|---|---|---|
| Transmedics, Inc. | 7 | $8,729 |
| Intuitive Surgical | 4 | $3,246 |
| AstraZeneca | 3 | $2,733 |
| Genentech USA, Inc. | 2 | $1,606 |
| Paragonix Technologies, Inc. | 5 | $514 |
| Dilon Technologies, Inc. | 2 | $289 |
| Boston Scientific | 1 | $155 |
| Medtronic | 2 | $145 |
| Baxter Healthcare | 1 | $125 |
| Merck | 1 | $26 |
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.
- ORGAN CARE SYSTEM$8,729
- Da Vinci Surgical System$3,235
- IMFINZI$2,685
- TECENTRIQ$1,606
- SherpaPak$417
- LIVERguard$417
- LUNGguard$417
- BaroGuard$417
- PancreasPak$417
- HemoBlast Bellows$289
- TheraSphere Y90 Glass Microspheres 10 GBq$155
- INVOS$121
How this compares
$17,568 in reported general payments places this provider in the 80th percentile of 21 transplant surgery providers in Arizona.
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 transplant surgery in Scottsdale
- Bassam Abu JawdehScottsdale$116K
- Nitin KatariyaScottsdale$26K
- Jack HarbellScottsdale$8K
- Kayla MirieScottsdale$4K
- Brianna RuchScottsdale$4K
- Adyr MossScottsdale$3K
- Ingrid WoelfelScottsdale$3K
- Andrew SingerScottsdale$2K
- Winston HewittScottsdale$836
- Kunam ReddyScottsdale$156
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.