Senthil Nachimuthu, MD
Clinical Cardiac Electrophysiology · Stillwater, OKNPI 1235246018
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $7,609 of the $12,071 with a category attached, or 63.0%. 33 manufacturers reported payments, led by Medtronic at 44.7% of the total. Reporting peaked in 2021 at $3,296 and has fallen 60.1% since, to $1,317 in 2025. That places this record below the midpoint for clinical cardiac electrophysiology clinicians in OK, where the typical reported total is $22,745.
Across 229 payments — averaging $52.71 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Medtronic$5K
- Abbott$4K
- Novartis$362
- Baylis Medical Company Inc$236
- Pfizer$224
- E.r. Squibb & Sons, L.L.C.$206
- plus $1K from 27 others
What the payments were for
- Travel & lodging$7,60963%
- Food & beverage$4,46237%
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 |
|---|---|---|
| Medtronic(2 entities) | 39 | $5,400 |
| Abbott | 80 | $4,303 |
| Novartis | 25 | $362 |
| Baylis Medical Company Inc | 2 | $236 |
| Pfizer | 14 | $224 |
| E.r. Squibb & Sons, L.L.C. | 14 | $206 |
| Inari Medical, Inc. | 4 | $198 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 11 | $194 |
| Celonova Biosciences, Inc. | 1 | $137 |
| Boston Scientific | 4 | $124 |
| Cvrx, Inc. | 1 | $80 |
| Abiomed | 2 | $79 |
| Johnson & Johnson | 3 | $49 |
| Kestra Medical Technology Services, Inc. | 2 | $47 |
| Esperion Therapeutics, Inc. | 3 | $43 |
| Stryker | 2 | $39 |
| Sanofi-aventis U.S. LLC | 2 | $35 |
| Edwards Lifesciences | 2 | $33 |
| Merck | 2 | $30 |
| Irhythm Technologies, Inc. | 2 | $30 |
| Terumo Medical Corporation | 1 | $23 |
| Surmodics, Inc. | 2 | $21 |
| Insmed, Inc. | 1 | $19 |
| Boehringer Ingelheim | 1 | $19 |
| Biotronik Inc. | 1 | $18 |
| Actelion Pharmaceuticals US, Inc. | 1 | $16 |
| Lundbeck LLC | 1 | $16 |
| Inspire Medical Systems, Inc. | 1 | $16 |
| Lexicon Pharmaceuticals, Inc. | 1 | $16 |
| Asahi Intecc USA, Inc. | 1 | $14 |
| AstraZeneca | 1 | $14 |
| Bardy Diagnostics, Inc. | 1 | $14 |
| Azurity Pharmaceuticals, 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.
- Micra$1,385
- Arctic Front$1,282
- AVEIR$800
- AMPLATZER AMULET$631
- AMPLATZER$576
- VANTAGEVIEW$570
- VersaCross Access Solution$224
- FLOWTRIEVER CATHETER, S$158
- CT THROMBECTOMY SYSTEM KIT$158
How this compares
$12,071 in reported general payments places this provider in the 20th percentile of 30 clinical cardiac electrophysiology providers in Oklahoma.
See all clinical cardiac electrophysiology providers in Oklahoma →
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 | 309 | $234,863 |
| EntrestoSacubitril/Valsartan | 154 | $118,364 |
| XareltoRivaroxaban | 80 | $59,934 |
| JardianceEmpagliflozin | 13 | $10,758 |
| Dofetilide | 62 | $9,190 |
| Flecainide Acetate | 154 | $4,641 |
| Metoprolol Succinate | 271 | $2,767 |
| ClopidogrelClopidogrel Bisulfate | 211 | $2,546 |
| Amiodarone Hcl | 49 | $2,076 |
| Prasugrel Hcl | 30 | $2,010 |
| Pitavastatin Calcium | 14 | $1,933 |
| Atorvastatin Calcium | 88 | $1,470 |
| Metoprolol Tartrate | 181 | $1,207 |
| Rosuvastatin Calcium | 125 | $1,137 |
| Digoxin | 66 | $1,100 |
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 | $224 | $234,863309 claims |
| NovartisEntresto | $362 | $118,364154 claims |
| Johnson & JohnsonXarelto | $49 | $59,93480 claims |
| Boehringer IngelheimJardiance | $19 | $10,75813 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 20th percentile of 30 clinical cardiac electrophysiology providers in Oklahoma.
Other clinical cardiac electrophysiology in Stillwater
- Warren JackmanOklahoma City$2.3M
- Sunny PoOklahoma City$260K
- John SummersOklahoma City$135K
- Sean HalleranOklahoma City$105K
- David SandlerTulsa$86K
- Ian ParkerOklahoma City$74K
- Craig CameronTulsa$52K
- Vikram KatariTulsa$34K
- Paul GarabelliOklahoma City$33K
- Venkatesh RaviTulsa$31K
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.