Christopher Chen, MD
Cardiovascular Disease · Concord, CANPI 1356704407
Payments from drug & device makers
Across 353 payments — averaging $37.49 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Biotronik Inc.$4K
- Boston Scientific$2K
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$1K
- Novartis$834
- Abbott$699
- E.r. Squibb & Sons, L.L.C.$630
- plus $4K from 32 others
What the payments were for
- Travel & lodging$1,0238%
- Food & beverage$12,17792%
- Education$340%
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 |
|---|---|---|
| Biotronik Inc. | 55 | $3,595 |
| Boston Scientific | 51 | $1,949 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 19 | $1,478 |
| Novartis | 43 | $834 |
| Abbott | 5 | $699 |
| E.r. Squibb & Sons, L.L.C. | 19 | $630 |
| AstraZeneca | 22 | $509 |
| Amgen | 17 | $363 |
| Esperion Therapeutics, Inc. | 12 | $267 |
| Johnson & Johnson | 12 | $239 |
| Impulse Dynamics (USA) Inc. | 5 | $234 |
| Biosense Webster, Inc. | 5 | $233 |
| Novo Nordisk | 6 | $206 |
| Teleflex LLC | 1 | $170 |
| Kiniksa Pharmaceuticals International, PLC | 7 | $158 |
| Chiesi USA, Inc. | 5 | $154 |
| Pfizer | 7 | $148 |
| Abiomed | 5 | $135 |
| Edwards Lifesciences | 4 | $126 |
| Baxter Healthcare | 5 | $114 |
| Bayer | 4 | $103 |
| Lexicon Pharmaceuticals, Inc. | 4 | $93 |
| Lilly USA, LLC | 5 | $93 |
| Merck | 5 | $89 |
| Heartflow, Inc. | 3 | $72 |
| Boehringer Ingelheim | 3 | $71 |
| Kestra Medical Technology Services, Inc. | 3 | $60 |
| GSK | 3 | $58 |
| Biodelivery Sciences International, Inc. | 3 | $51 |
| Alnylam Pharmaceuticals Inc. | 3 | $50 |
| Sanofi-aventis U.S. LLC | 2 | $45 |
| Kiniksa Pharmaceuticals, Ltd. | 2 | $44 |
| Philips North America LLC | 2 | $43 |
| Cathworks, Inc. | 2 | $33 |
| Ionis Pharmaceuticals, Inc. | 1 | $32 |
| Shockwave Medical, Inc | 1 | $25 |
| Coopersurgical, Inc. | 1 | $16 |
| Irhythm Technologies, Inc. | 1 | $16 |
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$683
- BioMonitor$585
- ENSITE$432
- Edora 8 DR-T$370
- AMVIA EDGE$358
- Solia$256
- ELIQUIS$228
- SYNERGY$224
- OPTIMIZER$222
- AVEIR$173
- MANTA$170
- Edora$148
- Rivacor$148
- Acticor$148
- RESONATE$122
- POLARIS$120
- AVVIGO Guidance System$112
- Carto 3$110
- Watchman$110
- LUX-Dx Insertable Cardiac Monitor$108
How this compares
$13,234 in reported general payments places this provider in the 75th 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 | 411 | $602,334 |
| XareltoRivaroxaban | 145 | $178,841 |
| EntrestoSacubitril/Valsartan | 95 | $165,354 |
| JardianceEmpagliflozin | 109 | $164,187 |
| FarxigaDapagliflozin Propanediol | 107 | $139,346 |
| Repatha SureclickEvolocumab | 109 | $134,870 |
| Praluent PenAlirocumab | 31 | $30,029 |
| Repatha PushtronexEvolocumab | 34 | $29,825 |
| BrilintaTicagrelor | 17 | $21,731 |
| OzempicSemaglutide | 15 | $18,674 |
| Rosuvastatin Calcium | 604 | $13,756 |
| Metoprolol Succinate | 554 | $10,640 |
| Dabigatran EtexilateDabigatran Etexilate Mesylate | 17 | $8,661 |
| DapagliflozinDapagliflozin Propanediol | 14 | $8,554 |
| Carvedilol | 507 | $5,963 |
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 | $148 | $602,334411 claims |
| Johnson & JohnsonXarelto | $239 | $178,841145 claims |
| NovartisEntresto | $834 | $165,35495 claims |
| Boehringer IngelheimJardiance | $71 | $164,187109 claims |
| AstraZenecaFarxiga, Brilinta | $509 | $161,078124 claims |
| Novo NordiskOzempic | $206 | $18,67415 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 75th percentile of 2,184 cardiovascular disease providers in California.
Other cardiovascular disease in Concord
- 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.