Daniel Marks, MD
Clinical Cardiac Electrophysiology · Joliet, ILNPI 1457794406
Payments from drug & device makers
What this record shows
The money is spread across several categories — travel and lodging (33.5%), grants and food and beverage — rather than concentrated in one kind of arrangement. 25 manufacturers reported payments, led by Boston Scientific at 32.7% of the total.
Across 501 payments — averaging $186.94 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$31K
- Medtronic$26K
- Abbott$20K
- Biotronik Inc.$6K
- Medical Device Business Services, Inc.$3K
- Biosense Webster, Inc.$3K
- plus $5K from 19 others
What the payments were for
- Consulting fees$1,6502%
- Speaking & faculty fees$3,1253%
- Grants$30,61033%
- Travel & lodging$31,40734%
- Food & beverage$26,50128%
- Education$3620%
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 |
|---|---|---|
| Boston Scientific | 152 | $30,611 |
| Medtronic(2 entities) | 100 | $25,594 |
| Abbott | 120 | $20,198 |
| Biotronik Inc. | 31 | $6,147 |
| Medical Device Business Services, Inc. | 6 | $2,875 |
| Biosense Webster, Inc. | 42 | $2,834 |
| Atricure, Inc. | 9 | $1,705 |
| Siemens Medical Solutions USA, Inc. | 1 | $1,650 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 14 | $709 |
| Kestra Medical Technology Services, Inc. | 2 | $209 |
| Abiomed | 3 | $198 |
| Cardiva Medical, Inc. | 3 | $169 |
| Volta Medical Inc | 1 | $163 |
| Sanofi-aventis U.S. LLC | 2 | $146 |
| AstraZeneca | 2 | $137 |
| Impulse Dynamics (USA) Inc. | 1 | $95 |
| Stryker | 1 | $39 |
| Pfizer | 2 | $31 |
| E.r. Squibb & Sons, L.L.C. | 2 | $29 |
| Merck | 2 | $28 |
| Regeneron Healthcare Solutions, Inc. | 1 | $27 |
| Kiniksa Pharmaceuticals International, PLC | 1 | $18 |
| Amgen | 1 | $17 |
| Johnson & Johnson | 1 | $14 |
| Chiesi USA, Inc. | 1 | $11 |
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.
- Farapulse$5,884
- Carto 3$4,649
- GENERAL BRADY$3,750
- EMBLEM S ICD ELECTRODE DELIVERY SYSTEM$3,750
- ENSITE PRECISION$3,696
- GENERAL - THERAPIES$2,900
- ENSITE$2,135
- MERLIN@HOME$1,954
- Acticor 7 VR-T DX$1,761
- BioMonitor$1,604
- Solia$1,464
- EPI-SENSE GUIDED COAGULATION SYSTEM WITH VISITRAX$1,423
- Micra$1,389
- Ensite Cardiac Mapping System$1,338
- Edora 8 DR-T$1,317
- Rivacor 7 DR-T$1,317
- EMBLEM MRI S-ICD$1,088
- AVEIR$1,039
- GENERAL TACHY$1,003
- EnSite Precision Cardiac Mapping System$912
How this compares
$93,655 in reported general payments places this provider in the 85th percentile of 158 clinical cardiac electrophysiology providers in Illinois.
See all clinical cardiac electrophysiology 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 | 236 | $255,398 |
| XareltoRivaroxaban | 23 | $22,707 |
| EntrestoSacubitril/Valsartan | 17 | $18,410 |
| Amiodarone Hcl | 125 | $3,814 |
| Flecainide Acetate | 113 | $3,730 |
| Metoprolol Succinate | 223 | $3,201 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 18 | $738 |
| Metoprolol Tartrate | 39 | $406 |
| Atorvastatin Calcium | 22 | $215 |
| Losartan Potassium | 20 | $162 |
| Lisinopril | 35 | $130 |
| Furosemide | 19 | $120 |
| Amlodipine Besylate | 17 | $115 |
| Carvedilol | 24 | $111 |
| Cephalexin | 13 | $106 |
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 |
|---|---|---|
| PfizerEliquis | $31 | $255,398236 claims |
| Johnson & JohnsonXarelto | $14 | $22,70723 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 85th percentile of 158 clinical cardiac electrophysiology providers in Illinois.
Other clinical cardiac electrophysiology in Joliet
- Mansour RazminiaPalos Heights$927K
- Mark MetzlEvanston$799K
- Roderick TungChicago$795K
- Bradley KnightChicago$661K
- Gaurav UpadhyayChicago$593K
- Henry HuangGeneva$501K
- Kousik KrishnanNaperville$311K
- Hany DemoChicago$297K
- Cash CaseyElmhurst$287K
- Moeen SaleemNaperville$249K
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.