Isaac Whitman, MD
Clinical Cardiac Electrophysiology · Philadelphia, PANPI 1902040843
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $51,725 of the $77,266 with a category attached, or 66.9%. Impulse Dynamics (USA) Inc. accounts for 77.4% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2024 at $28,932 and has fallen 81.4% since, to $5,381 in 2025.
Across 205 payments — averaging $376.91 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Impulse Dynamics (USA) Inc.$60K
- Boston Scientific$11K
- Biosense Webster, Inc.$4K
- Medtronic$2K
- Philips North America LLC$265
- Abbott$258
- plus $356 from 3 others
Across 22 payments — averaging $1775.78 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Impulse Dynamics (USA) Inc.$39K
What the payments were for
- Consulting fees$7,0509%
- Speaking & faculty fees$51,72567%
- Travel & lodging$10,98314%
- Food & beverage$7,50810%
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 |
|---|---|---|
| Impulse Dynamics (USA) Inc. | 114 | $59,813 |
| Boston Scientific | 20 | $10,701 |
| Biosense Webster, Inc. | 20 | $3,625 |
| Medtronic(2 entities) | 29 | $2,249 |
| Philips North America LLC | 3 | $265 |
| Abbott | 11 | $258 |
| Abiomed | 3 | $245 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 4 | $82 |
| Atricure, Inc. | 1 | $30 |
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.
- OPTIMIZER$103,931
- GENERAL - THERAPIES$4,493
- OPTIMIZER SMART SYSTEM$3,782
- Carto 3 System$2,700
- Carto Smarttouch$2,700
- Carto CFAE$2,700
- CartoSound$2,700
- EVERA MRI XT DR SURESCAN$740
- Carto 3$348
- Micra$213
- VersaCross Access Solution$141
- Farapulse$140
- AURORA EV-ICD MRI SURESCAN$128
How this compares
$77,266 in reported general payments places this provider in the 80th percentile of 201 clinical cardiac electrophysiology providers in Pennsylvania.
See all clinical cardiac electrophysiology providers in Pennsylvania →
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 | 40 | $51,924 |
| XareltoRivaroxaban | 14 | $11,722 |
| Flecainide Acetate | 23 | $739 |
| Metoprolol Succinate | 33 | $588 |
Paid to pharmacies, not to this prescriber.
Other clinical cardiac electrophysiology in Philadelphia
- Fermin GarciaPhiladelphia$684K
- Ralph VerdinoPhiladelphia$682K
- Pasquale SantangeliPhiladelphia$581K
- Francis MarchlinskiPhiladelphia$469K
- Joshua CooperPhiladelphia$405K
- Timothy MarkmanPhiladelphia$402K
- David CallansPhiladelphia$350K
- Robert SchallerPhiladelphia$333K
- Matthew HymanPhiladelphia$294K
- David FrankelPhiladelphia$218K
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.