Si Pham, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Jacksonville, FLNPI 1811953086
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $3,622 of the $5,156 with a category attached, or 70.2%. Abbott accounts for 80.4% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2019 at $3,730 and has fallen 84.5% since, to $577 in 2023. That places this record below the midpoint for thoracic surgery (cardiothoracic vascular surgery) clinicians in FL, where the typical reported total is $6,925.
Across 22 payments — averaging $234.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$4K
- Transmedics, Inc.$439
- W. L. Gore & Associates, Inc.$143
- AstraZeneca$138
- United Therapeutics Corporation$118
- Cvrx, Inc.$85
- plus $89 from 2 others
Across 65 payments — averaging $9364.26 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.$359K
- Paragonix Technologies, Inc.$195K
- Xvivo Perfusion Inc.$29K
- United Therapeutics Corporation$25K
What the payments were for
- Travel & lodging$3,62270%
- Food & beverage$1,53430%
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 |
|---|---|---|
| Abbott | 14 | $4,143 |
| Transmedics, Inc. | 1 | $439 |
| W. L. Gore & Associates, Inc. | 1 | $143 |
| AstraZeneca | 1 | $138 |
| United Therapeutics Corporation | 1 | $118 |
| Cvrx, Inc. | 2 | $85 |
| Medtronic | 1 | $56 |
| Atricure, Inc. | 1 | $33 |
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
$5,156 in reported general payments places this provider in the 40th percentile of 408 thoracic surgery (cardiothoracic vascular surgery) providers in Florida.
See all thoracic surgery (cardiothoracic vascular 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 thoracic surgery (cardiothoracic vascular surgery) in Jacksonville
- John PirrisJacksonville$640K
- Magdy El-Sayed AhmedJacksonville$209K
- Chadwick StoufferJacksonville$114K
- Christopher ScottJacksonville$111K
- Kenan YountJacksonville$74K
- Nathan BatesJacksonville$58K
- Elbert KuoJacksonville$55K
- Anthony NunezOrlando$4.8M
- Barry WintonLargo$687K
- Paul DigiorgiPort Charlotte$666K
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.