Thanh Cao, DO
Nephrology · Fountain Valley, CANPI 1073963583
Payments from drug & device makers
Across 63 payments — averaging $65.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$1K
- Gilead$603
- Bayer$330
- Inari Medical, Inc.$236
- AstraZeneca$234
- Amgen$147
- plus $1K from 20 others
What the payments were for
- Food & beverage$4,02298%
- Education$832%
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 |
|---|---|---|
| Johnson & Johnson(2 entities) | 11 | $1,085 |
| Gilead | 5 | $603 |
| Bayer | 9 | $330 |
| Inari Medical, Inc. | 1 | $236 |
| AstraZeneca | 6 | $234 |
| Amgen | 2 | $147 |
| Mallinckrodt Hospital Products Inc. | 3 | $134 |
| Fresenius Kabi USA, LLC | 1 | $125 |
| Aurinia Pharma U.S., Inc. | 1 | $124 |
| Medtronic | 1 | $123 |
| Akebia Therapeutics Inc | 1 | $121 |
| Ardelyx, Inc. | 1 | $120 |
| Boston Scientific | 1 | $118 |
| Boehringer Ingelheim | 2 | $117 |
| Novo Nordisk | 1 | $111 |
| Nxstage Medical, Inc. | 3 | $108 |
| Vifor Pharma, Inc. | 2 | $51 |
| Pfizer | 3 | $37 |
| Otsuka America Pharmaceutical, Inc. | 2 | $36 |
| Lilly USA, LLC | 1 | $34 |
| GSK | 1 | $23 |
| Alnylam Pharmaceuticals Inc. | 1 | $23 |
| Dexcom, Inc. | 1 | $19 |
| OPKO Pharmaceuticals, LLC | 1 | $18 |
| Fresenius USA Marketing, Inc. | 1 | $17 |
| Novartis | 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.
- XARELTO$485
- TECVAYLI$434
- DARZALEX$285
- FLOWTRIEVER CATHETER, S$236
- CT THROMBECTOMY SYSTEM KIT$236
- TALVEY$149
- CARVYKTI$148
- Kerendia$144
- FARXIGA$125
- KRYSTEXXA$125
- Smoflipid$125
- LUPKYNIS$124
- SYMPLICITY G3$123
- AURYXIA$121
- XPHOZAH 30 MG$120
- GENERAL VASCULAR INTERVENTION$118
- Biktarvy$113
- Xultophy 100/3.6$111
- Vemlidy$100
How this compares
$4,105 in reported general payments places this provider in the 65th percentile of 1,341 nephrology 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 |
|---|---|---|
| JynarqueTolvaptan | 13 | $252,879 |
| KerendiaFinerenone | 153 | $157,036 |
| VelphoroSucroferric Oxyhydroxide | 62 | $156,194 |
| JardianceEmpagliflozin | 89 | $95,373 |
| Tolvaptan | 13 | $82,862 |
| FarxigaDapagliflozin Propanediol | 49 | $50,853 |
| Sevelamer Carbonate | 72 | $44,283 |
| ProcritEpoetin Alfa | 23 | $23,533 |
| VeltassaPatiromer Calcium Sorbitex | 27 | $22,063 |
| LokelmaSodium Zirconium Cyclosilicate | 29 | $19,130 |
| OzempicSemaglutide | 20 | $18,530 |
| JanuviaSitagliptin Phosphate | 19 | $17,274 |
| Sodium Polystyrene Sulfonate | 117 | $8,713 |
| Bumetanide | 113 | $4,636 |
| SpsSodium Polystyrene Sulfon/Sorb | 31 | $4,094 |
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 |
|---|---|---|
| Otsuka America Pharmaceutical, Inc.Jynarque | $36 | $252,87913 claims |
| BayerKerendia | $330 | $157,036153 claims |
| Fresenius USA Marketing, Inc.Velphoro | $17 | $156,19462 claims |
| Boehringer IngelheimJardiance | $117 | $95,37389 claims |
| AstraZenecaFarxiga, Lokelma | $234 | $69,98478 claims |
| Johnson & JohnsonProcrit | $1,085 | $23,53323 claims |
| Novo NordiskOzempic | $111 | $18,53020 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 1,341 nephrology providers in California.
Other nephrology in Fountain Valley
- Alan CantillepFountain Valley$1.5M
- Anjay RastogiLos Angeles$6.3M
- Aamir JamalSan Dimas$5.5M
- Mohamed El-ShahawyLos Angeles$4.4M
- Kalpesh PatelCalabasas$3.6M
- Jehad HaggiagiMission Hills$3.6M
- Malvin YanSouth Gate$3.3M
- Sohan DuaNorthridge$3.2M
- Richard LafayetteStanford$3M
- Anant DesaiGranada Hills$2.9M
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.