Mark Dixon, DO
Clinical Cardiac Electrophysiology · Valparaiso, INNPI 1912980236
Payments from drug & device makers
What this record shows
The money is spread across several categories — food and beverage (52.5%), speaking fees and education — rather than concentrated in one kind of arrangement. 8 manufacturers reported payments, led by ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) at 52.1% of the total. Reporting peaked in 2019 at $2,039 and has fallen 93.1% since, to $142 in 2025. That places this record below the midpoint for clinical cardiac electrophysiology clinicians in IN, where the typical reported total is $13,586.
Across 47 payments — averaging $67.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$2K
- Boston Scientific$1K
- Biosense Webster, Inc.$105
- Novartis$73
- Abbott$59
- Sanofi-aventis U.S. LLC$45
- plus $52 from 2 others
What the payments were for
- Speaking & faculty fees$1,50048%
- Food & beverage$1,65752%
- Education$10%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 4 | $1,645 |
| Boston Scientific | 29 | $1,178 |
| Biosense Webster, Inc. | 2 | $105 |
| Novartis | 5 | $73 |
| Abbott | 2 | $59 |
| Sanofi-aventis U.S. LLC | 2 | $45 |
| Philips North America LLC | 2 | $41 |
| Terumo Medical Corporation | 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.
- LifeVest$1,615
- WATCHMAN Access System$136
- Watchman$112
- GENERAL - STRUCTURAL HEART$102
How this compares
$3,158 in reported general payments places this provider in the 15th percentile of 72 clinical cardiac electrophysiology providers in Indiana.
See all clinical cardiac electrophysiology providers in Indiana →
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 | 179 | $198,653 |
| XareltoRivaroxaban | 70 | $82,958 |
| MultaqDronedarone Hcl | 33 | $57,220 |
| Flecainide Acetate | 158 | $10,437 |
| Amiodarone Hcl | 295 | $8,207 |
| SotalolSotalol Hcl | 358 | $6,305 |
| Propafenone Hcl | 44 | $2,350 |
| Metoprolol Succinate | 164 | $2,294 |
| Enoxaparin Sodium | 68 | $1,671 |
| Acebutolol Hcl | 21 | $1,305 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 21 | $1,268 |
| PaceroneAmiodarone Hcl | 14 | $1,137 |
| Potassium Chloride | 53 | $933 |
| Digoxin | 46 | $881 |
| Metoprolol Tartrate | 64 | $519 |
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 |
|---|---|---|
| Sanofi-aventis U.S. LLCMultaq | $45 | $57,22033 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 15th percentile of 72 clinical cardiac electrophysiology providers in Indiana.
Other clinical cardiac electrophysiology in Valparaiso
- Raghuram DasariValparaiso$9K
- Eric PrystowskyIndianapolis$1.1M
- Chad BonhommeWestfield$925K
- Kevin TrulockIndianapolis$402K
- Sharath VipparthyIndianapolis$114K
- Jasen GilgeIndianapolis$93K
- Vincent KeatingIndianapolis$80K
- Christopher ReedIndianapolis$80K
- Marcelle StuckyIndianapolis$76K
- Joseph SzwedIndianapolis$67K
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.