Thomas Gianis, MD
Vascular Surgery · San Antonio, TXNPI 1467895375
Payments from drug & device makers
What this record shows
This record is dominated by other: $16,875 of the $23,512 with a category attached, or 71.8%. Angiodynamics, Inc. accounts for 72.2% of it on its own, with 25 other manufacturers making up the rest. Reporting peaked in 2023 at $15,480 and has fallen 86.4% since, to $2,105 in 2025.
Across 117 payments — averaging $200.96 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Angiodynamics, Inc.$17K
- Bard Peripheral Vascular, Inc.$1K
- Philips North America LLC$1K
- Medtronic$644
- Endologix LLC$605
- W. L. Gore & Associates, Inc.$409
- plus $3K from 20 others
What the payments were for
- Travel & lodging$6613%
- Food & beverage$5,80525%
- Education$1711%
- Other$16,87572%
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 |
|---|---|---|
| Angiodynamics, Inc. | 6 | $16,974 |
| Bard Peripheral Vascular, Inc. | 26 | $1,258 |
| Philips North America LLC | 15 | $1,112 |
| Medtronic(2 entities) | 10 | $644 |
| Endologix LLC | 8 | $605 |
| W. L. Gore & Associates, Inc. | 4 | $409 |
| Johnson & Johnson | 11 | $394 |
| Tactile Systems Technology Inc | 7 | $312 |
| Shockwave Medical, Inc | 3 | $308 |
| Bsn Medical Inc | 1 | $270 |
| Cook Medical LLC | 3 | $209 |
| Kerecis Limited | 2 | $167 |
| Silk Road Medical, Inc. | 3 | $140 |
| Siemens Medical Solutions USA, Inc. | 1 | $137 |
| Penumbra, Inc. | 1 | $86 |
| Bolton Medical Inc | 4 | $71 |
| Innovation Technologies Inc | 1 | $67 |
| Resmed Corp | 1 | $63 |
| Cordis US CORP. | 1 | $50 |
| BD | 2 | $48 |
| Boston Scientific | 1 | $46 |
| Biotissue Holdings Inc. | 1 | $42 |
| Biotronik Inc. | 1 | $37 |
| Surmodics, Inc. | 1 | $26 |
| Cashflow Solutions, LLC | 2 | $22 |
| Convatec Inc. | 1 | $13 |
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.
- Auryon Laser System 100-120 Vac$16,875
- Kerecis SurgiClose$600
- IV Other$394
- (9520) IGT Devices Undivided$312
- Lutonix Drug Coated Balloon$296
- RotarexS 6 F x 135 cm$287
- JOBST FORMEN AMBITION$270
- Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter$257
- XARELTO$247
- VenaSeal$187
- EXCLUDER Conformable AAA Endoprosthesis with Active Control$179
- Flexitouch Plus$164
- Nimbl$164
- Kerecis GraftGuide$150
- Cios Alpha$137
- Cios Spin$137
- Endurant$135
- Cook$125
How this compares
$23,512 in reported general payments places this provider in the 75th percentile of 347 vascular surgery 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 42 | $557 |
| Atorvastatin Calcium | 22 | $96 |
Paid to pharmacies, not to this prescriber.
Other vascular surgery in San Antonio
- William EnglishSan Antonio$194K
- Lucas Ferrer CardonaSan Antonio$141K
- Nessa MillerSan Antonio$41K
- Lyssa OchoaSan Antonio$39K
- Ashton LeeSan Antonio$35K
- Andrew NagySan Antonio$35K
- Gregory PearlDallas$2.3M
- Mazin FotehAustin$1.6M
- Alan LumsdenHouston$742K
- Stephen HohmannDallas$499K
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.