Nandan Nath, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery) · Palos Heights, ILNPI 1225443393
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (54.2%), food and beverage and grants — rather than concentrated in one kind of arrangement. 26 manufacturers reported payments, led by Penumbra, Inc. at 57.1% of the total. Reporting peaked in 2023 at $7,437 and has fallen 80.6% since, to $1,446 in 2025.
Across 98 payments — averaging $150.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$8K
- Medtronic$2K
- Silk Road Medical, Inc.$2K
- W. L. Gore & Associates, Inc.$590
- Inari Medical, Inc.$419
- Cvrx, Inc.$340
- plus $1K from 20 others
What the payments were for
- Grants$9977%
- Travel & lodging$7,97354%
- Food & beverage$5,23336%
- Education$5214%
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 |
|---|---|---|
| Penumbra, Inc. | 19 | $8,402 |
| Medtronic(2 entities) | 9 | $2,018 |
| Silk Road Medical, Inc. | 9 | $1,552 |
| W. L. Gore & Associates, Inc. | 7 | $590 |
| Inari Medical, Inc. | 6 | $419 |
| Cvrx, Inc. | 3 | $340 |
| Abbott | 4 | $265 |
| Cook Medical LLC | 5 | $194 |
| Johnson & Johnson | 7 | $138 |
| Smith+Nephew | 5 | $106 |
| EKOS Corporation | 1 | $95 |
| Boston Scientific | 3 | $91 |
| Philips North America LLC | 3 | $75 |
| Integra Lifesciences Corporation | 3 | $74 |
| Cordis US CORP. | 2 | $60 |
| Bioventus LLC | 1 | $43 |
| Lifenet Health | 1 | $35 |
| Aroa Biosurgery Incorporated | 1 | $32 |
| Sanara Medtech Inc. | 2 | $30 |
| Angiodynamics, Inc. | 1 | $28 |
| Cardiva Medical, Inc. | 1 | $27 |
| Stryker | 1 | $27 |
| Imperative Care, Inc | 1 | $24 |
| Organogenesis Inc. | 1 | $21 |
| Lemaitre Vascular, Inc. | 1 | $19 |
| Bard Peripheral Vascular, Inc. | 1 | $18 |
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.
- Indigo System$4,670
- Penumbra Coil 400$2,266
- ENROUTE Transcarotid Neuroprotection System$1,349
- ENROUTE Transcarotid Stent$1,349
- Smart Coil$1,166
- Endurant$997
- FLOWTRIEVER CATHETER, S$449
- Barostim Neo System$307
- Penumbra System$279
- EXCLUDER Iliac Branch Endoprosthesis$184
- CT THROMBECTOMY SYSTEM KIT$181
- HawkOne$143
- CHOCOLATE PTA BALLOON CATHETER$134
- PROPATEN Vascular Graft$133
- MitraClip$129
- Conformable TAG Thoracic Endoprosthesis$126
- ENHANCE Transcarotid Peripheral Access Kit$105
- ENROUTE .014 Guidewire$105
- IN.PACT Admiral$104
How this compares
$14,724 in reported general payments places this provider in the 80th percentile of 220 thoracic surgery (cardiothoracic vascular surgery) providers in Illinois.
See all thoracic surgery (cardiothoracic vascular surgery) providers in Illinois →
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 |
|---|---|---|
| EliquisApixaban | 25 | $16,936 |
| XareltoRivaroxaban | 14 | $9,653 |
| ClopidogrelClopidogrel Bisulfate | 49 | $377 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 12 | $42 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Johnson & JohnsonXarelto | $138 | $9,65314 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 80th percentile of 220 thoracic surgery (cardiothoracic vascular surgery) providers in Illinois.
Other thoracic surgery (cardiothoracic vascular surgery) in Palos Heights
- Franjo SiricPalos Heights$22K
- James GrammOlympia Fields$386K
- Jessica DoningtonChicago$314K
- S Christopher MalaisrieChicago$254K
- Patrick McCarthyChicago$241K
- Samuel KimChicago$221K
- Andrew ArndtWinfield$206K
- Douglas JohnstonChicago$205K
- Gianluca TorregrossaChicago$197K
- Valluvan JeevanandamChicago$193K
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.