Michael Kwan, MD
Cardiovascular Disease · San Antonio, TXNPI 1942267802
Payments from drug & device makers
Across 380 payments — averaging $80.85 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Amgen$15K
- Abbott$5K
- Abiomed$3K
- Actelion Pharmaceuticals US, Inc.$2K
- Cvrx, Inc.$932
- Alnylam Pharmaceuticals Inc.$552
- plus $5K from 31 others
What the payments were for
- Food & beverage$15,49099%
- Education$1091%
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 |
|---|---|---|
| Amgen | 12 | $15,124 |
| Abbott | 82 | $5,391 |
| Abiomed | 30 | $2,648 |
| Actelion Pharmaceuticals US, Inc. | 60 | $1,526 |
| Cvrx, Inc. | 17 | $932 |
| Alnylam Pharmaceuticals Inc. | 21 | $552 |
| Medtronic(2 entities) | 7 | $535 |
| Impulse Dynamics (USA) Inc. | 11 | $491 |
| Novartis | 21 | $373 |
| E.r. Squibb & Sons, L.L.C. | 20 | $357 |
| Pfizer | 13 | $314 |
| Merck | 17 | $291 |
| United Therapeutics Corporation | 17 | $289 |
| Inari Medical, Inc. | 2 | $182 |
| Portola Pharmaceuticals, LLC | 3 | $166 |
| Boston Scientific | 3 | $137 |
| Stryker | 1 | $131 |
| Lexicon Pharmaceuticals, Inc. | 2 | $131 |
| Angiodynamics, Inc. | 1 | $130 |
| Daiichi Sankyo Inc. | 6 | $129 |
| Cardiva Medical, Inc. | 2 | $115 |
| AstraZeneca(2 entities) | 6 | $98 |
| Boehringer Ingelheim | 3 | $93 |
| Biosense Webster, Inc. | 1 | $92 |
| Johnson & Johnson | 4 | $81 |
| Novo Nordisk | 3 | $76 |
| EKOS Corporation | 1 | $65 |
| Sandoz | 3 | $52 |
| Gilead | 2 | $50 |
| Scpharmaceuticals Inc. | 2 | $33 |
| Biotronik Inc. | 1 | $32 |
| Akcea Therapeutics, Inc. | 1 | $27 |
| Irhythm Technologies, Inc. | 1 | $25 |
| Ancora Heart, Inc. | 1 | $15 |
| KCI USA, Inc. | 1 | $14 |
| Kiniksa Pharmaceuticals International, PLC | 1 | $13 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 1 | $12 |
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.
- CARDIOMEMS$2,268
- Impella$1,890
- Barostim Neo System$794
- THORATEC HEARTMATE 3 LVAS IMPLANT KIT$506
- HeartMate 3 Left Ventricular Dev$340
- UPTRAVI$243
- HeartWare HVAD$238
- OPTIMIZER$203
- OPTIMIZER SMART SYSTEM$178
- CardioMEMS HF System$166
- FLOWTRIEVER CATHETER, S$158
- CT THROMBECTOMY SYSTEM KIT$158
- FlowTriever$131
- AlphaVac$130
- CoreValve Evolut$125
- VYNDAQEL$125
- ONPATTRO$125
- CAMZYOS$125
- ANDEXXA$120
- OPSUMIT$118
How this compares
$30,723 in reported general payments places this provider in the 80th percentile of 1,515 cardiovascular disease providers in Texas.
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 |
|---|---|---|
| VyndamaxTafamidis | 24 | $576,862 |
| OpsumitMacitentan | 14 | $179,294 |
| Valganciclovir Hcl | 64 | $17,274 |
| EntrestoSacubitril/Valsartan | 16 | $12,623 |
| Tacrolimus | 46 | $10,328 |
| FarxigaDapagliflozin Propanediol | 17 | $9,798 |
| Mycophenolate Mofetil | 46 | $2,962 |
| Potassium Chloride | 56 | $1,422 |
| Humalog Kwikpen U-100Insulin Lispro | 14 | $1,393 |
| Nystatin | 33 | $1,268 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 17 | $1,099 |
| Ultra-Fine Short Pen NeedlePen Needle, Diabetic | 13 | $1,046 |
| Gabapentin | 62 | $1,036 |
| Pravastatin Sodium | 111 | $917 |
| Torsemide | 48 | $774 |
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 |
|---|---|---|
| PfizerVyndamax | $314 | $576,86224 claims |
| Actelion Pharmaceuticals US, Inc.Opsumit | $1,526 | $179,29414 claims |
| NovartisEntresto | $373 | $12,62316 claims |
| AstraZenecaFarxiga | $98 | $9,79817 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 80th percentile of 1,515 cardiovascular disease providers in Texas.
Other cardiovascular disease in San Antonio
- Chandrasekhar KunavarapuSan Antonio$765K
- Robert SchnitzlerSan Antonio$425K
- Ramin Farzaneh-FarDallas$17.1M
- Jeffrey GladdenDallas$15.8M
- Ann NavarDallas$14.5M
- David BrabhamAmarillo$11.5M
- Justin GrodinDallas$6.2M
- Christie BallantyneHouston$4.6M
- Syed NaqviHouston$3.6M
- Faisal WahidMcKinney$3.4M
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.