Sean Byrnes, MD
Clinical Cardiac Electrophysiology · Iowa City, IANPI 1154818193
Payments from drug & device makers
What this record shows
The money is spread across several categories — grants (58.8%), travel and lodging and food and beverage — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Boston Scientific at 36.6% of the total. 2025 is the largest year on record at $19,092, more than ten times the $251 reported in 2022.
Across 205 payments — averaging $175.99 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$13K
- Abbott$12K
- Medtronic$8K
- Biosense Webster, Inc.$2K
- Biotronik Inc.$781
- Medical Device Business Services, Inc.$344
- plus $325 from 7 others
What the payments were for
- Grants$21,21259%
- Travel & lodging$6,85419%
- Food & beverage$5,83316%
- Education$2,1796%
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 | 61 | $13,207 |
| Abbott | 53 | $11,774 |
| Medtronic | 55 | $7,676 |
| Biosense Webster, Inc. | 15 | $1,972 |
| Biotronik Inc. | 10 | $781 |
| Medical Device Business Services, Inc. | 2 | $344 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 2 | $121 |
| Elutia, Inc. | 2 | $94 |
| Abiomed | 1 | $33 |
| Cardiva Medical, Inc. | 1 | $32 |
| Penumbra, Inc. | 1 | $19 |
| Cook Medical LLC | 1 | $16 |
| Impulse Dynamics (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.
- Watchman$6,250
- ENSITE$2,531
- Carto 3$1,722
- ASSURITY$1,705
- TACTICATH$1,136
- ENSITE PRECISION$1,112
- GENERAL EP$700
- CARDIOMEMS$251
- NUVISION ICE CATHETER$123
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$105
How this compares
$36,078 in reported general payments places this provider in the 70th percentile of 42 clinical cardiac electrophysiology providers in Iowa.
See all clinical cardiac electrophysiology providers in Iowa →
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 |
|---|---|---|
| JardianceEmpagliflozin | 18 | $17,912 |
| CorlanorIvabradine Hcl | 12 | $7,198 |
| Doxycycline Monohydrate | 16 | $150 |
| Pantoprazole Sodium | 14 | $140 |
| Amiodarone Hcl | 15 | $98 |
| Carvedilol | 28 | $98 |
| Rosuvastatin Calcium | 11 | $37 |
Paid to pharmacies, not to this prescriber.
Other clinical cardiac electrophysiology in Iowa City
- Steven MickelsenIowa City$2.4M
- Paari DominicIowa City$83K
- Peter FarjoIowa City$72K
- Oluwaseun AdeolaIowa City$49K
- Edward PowersIowa City$33K
- Samuel JohnstonIowa City$23K
- Denice Hodgson ZingmanIowa City$17K
- Troy RhodesIowa City$15K
- Hina AminIowa City$14K
- David HamonIowa City$11K
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.