Leon Kupferwasser, MD
Cardiovascular Disease · van Nuys, CANPI 1316067457
Payments from drug & device makers
Across 328 payments — averaging $19.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$897
- Merck$789
- Novartis$715
- Amgen$490
- AstraZeneca$348
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$313
- plus $3K from 29 others
What the payments were for
- Food & beverage$6,45099%
- Education$651%
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 |
|---|---|---|
| Pfizer | 65 | $897 |
| Merck | 34 | $789 |
| Novartis | 51 | $715 |
| Amgen | 22 | $490 |
| AstraZeneca | 21 | $348 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 12 | $313 |
| Abbott | 6 | $270 |
| Johnson & Johnson | 13 | $258 |
| Boehringer Ingelheim | 10 | $251 |
| E.r. Squibb & Sons, L.L.C. | 13 | $243 |
| Sanofi-aventis U.S. LLC | 10 | $229 |
| Kiniksa Pharmaceuticals, Ltd. | 9 | $219 |
| Medtronic | 6 | $149 |
| Heartflow, Inc. | 6 | $142 |
| Novo Nordisk | 5 | $135 |
| Bayer | 6 | $109 |
| Scpharmaceuticals Inc. | 4 | $101 |
| Edwards Lifesciences | 4 | $95 |
| Kiniksa Pharmaceuticals International, PLC | 3 | $95 |
| Pulmonx Corporation | 1 | $76 |
| Lexicon Pharmaceuticals, Inc. | 4 | $73 |
| Boston Scientific | 4 | $72 |
| Vivaquant Inc, Dba Rhythm Express | 2 | $65 |
| Amarin Pharma, Inc. | 3 | $61 |
| Nevro Corp. | 1 | $58 |
| G Medical Diagnostic Services, Inc. | 3 | $50 |
| Itamar Medical Inc | 1 | $38 |
| Alnylam Pharmaceuticals Inc. | 2 | $35 |
| Cvrx, Inc. | 1 | $23 |
| Ionis Pharmaceuticals, Inc. | 1 | $23 |
| Portola Pharmaceuticals, LLC | 1 | $22 |
| Esperion Therapeutics, Inc. | 1 | $20 |
| Biotronik Inc. | 1 | $19 |
| Philips North America LLC | 1 | $17 |
| Kestra Medical Technology Services, Inc. | 1 | $16 |
How this compares
$6,515 in reported general payments places this provider in the 65th percentile of 2,184 cardiovascular disease providers in California.
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 | 589 | $689,276 |
| EntrestoSacubitril/Valsartan | 152 | $201,839 |
| XareltoRivaroxaban | 134 | $136,401 |
| FarxigaDapagliflozin Propanediol | 106 | $112,553 |
| Repatha SureclickEvolocumab | 76 | $69,828 |
| VerquvoVericiguat | 27 | $21,729 |
| JardianceEmpagliflozin | 26 | $20,876 |
| BrilintaTicagrelor | 22 | $20,534 |
| DapagliflozinDapagliflozin Propanediol | 23 | $15,079 |
| CorlanorIvabradine Hcl | 15 | $14,918 |
| Repatha SyringeEvolocumab | 17 | $13,013 |
| Nebivolol Hcl | 220 | $11,283 |
| Metoprolol Succinate | 534 | $7,000 |
| Atorvastatin Calcium | 622 | $5,620 |
| Hydralazine Hcl | 421 | $5,513 |
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 | $897 | $689,276589 claims |
| NovartisEntresto | $715 | $201,839152 claims |
| Johnson & JohnsonXarelto | $258 | $136,401134 claims |
| AstraZenecaFarxiga, Brilinta | $348 | $133,087128 claims |
| MerckVerquvo | $789 | $21,72927 claims |
| Boehringer IngelheimJardiance | $251 | $20,87626 claims |
| AmgenCorlanor | $490 | $14,91815 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 65th percentile of 2,184 cardiovascular disease providers in California.
Other cardiovascular disease in van Nuys
- Ted LoveHillsborough$102.8M
- Matthew BudoffTorrance$11.3M
- Lori DanielsSan Diego$10.2M
- Paul KurthSanta Barbara$6.1M
- Michael BlumSan Francisco$5.5M
- Tony ChouSan Francisco$5.2M
- Jason RogersSacramento$5.1M
- Yu-Ping WangStanford$3.8M
- Yogesh PaliwalPomona$3.3M
- Farhad RafiiWest Hills$3.2M
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.