Shennen Mao, MD
Transplant Surgery · Jacksonville, FLNPI 1922230713
Payments from drug & device makers
What this record shows
3 manufacturers reported payments, led by Transmedics, Inc. at 50.3% of the total. That places this record below the midpoint for transplant surgery clinicians in FL, where the typical reported total is $3,023.
Across 6 payments — averaging $247.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Transmedics, Inc.$747
- Xvivo Perfusion Inc.$547
- Paragonix Technologies, Inc.$190
Across 10 payments — averaging $23,435 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.$226K
- Paragonix Technologies, Inc.$9K
What the payments were for
- Travel & lodging$74750%
- Food & beverage$73750%
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. | 1 | $747 |
| Xvivo Perfusion Inc. | 4 | $547 |
| Paragonix Technologies, Inc. | 1 | $190 |
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.
How this compares
$1,484 in reported general payments places this provider in the 40th percentile of 53 transplant surgery providers in Florida.
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 Jacksonville
- Nicole LooJacksonville$17K
- Kristopher CroomeJacksonville$10K
- Jacob ClendenonJacksonville$1K
- Omar MousaJacksonville$210
- Justin BurnsJacksonville$91
- Dana PerryJacksonville$23
- Scott SilvestryOrlando$661K
- Amy LuTampa$133K
- Eduardo AlsinaTampa$121K
- Kiran DhanireddyTampa$40K
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.