Dani Castillo, MD
Medical Oncology · Duarte, CANPI 1427570332
Payments from drug & device makers
Across 398 payments — averaging $5103.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Daiichi Sankyo Inc.$585K
- Kyowa Kirin Co., Ltd$511K
- AstraZeneca$288K
- Merck$276K
- AbbVie$238K
- Astrazeneca UK Limited$41K
- plus $92K from 19 others
What the payments were for
- Consulting fees$21,86481%
- Travel & lodging$2,74510%
- Food & beverage$1,6196%
- Education$6432%
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 |
|---|---|---|
| Daiichi Sankyo Inc. | 252 | $585,464 |
| Kyowa Kirin Co., Ltd | 74 | $510,871 |
| AstraZeneca | 4 | $287,731 |
| Merck | 1 | $275,800 |
| AbbVie | 10 | $238,444 |
| Astrazeneca UK Limited | 1 | $40,750 |
| Coherus Oncology, Inc. | 2 | $35,500 |
| Amgen | 6 | $33,806 |
| Beone Medicines USA, Inc. | 14 | $21,266 |
| Takeda Pharmaceuticals U.S.A., Inc. | 4 | $312 |
| Incyte Corporation | 3 | $198 |
| Seagen Inc. | 2 | $191 |
| Lilly USA, LLC | 5 | $142 |
| Astellas Pharma US Inc | 4 | $130 |
| ADC Therapeutics America, Inc. | 2 | $104 |
| AVEO Pharmaceuticals, Inc. | 1 | $100 |
| Novartis | 3 | $66 |
| Tempus AI, Inc | 2 | $53 |
| Eisai Inc. | 2 | $47 |
| Tersera Therapeutics LLC | 1 | $31 |
| Johnson & Johnson | 1 | $30 |
| Regeneron Healthcare Solutions, Inc. | 1 | $27 |
| E.r. Squibb & Sons, L.L.C. | 1 | $24 |
| Mirati Therapeutics, Inc. | 1 | $20 |
| Ipsen Biopharmaceuticals, Inc | 1 | $18 |
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.
How this compares
$2,031,124 in reported general payments places this provider in the 85th percentile of 379 medical oncology 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 |
|---|---|---|
| LonsurfTrifluridine/Tipiracil Hcl | 13 | $97,236 |
| Sucralfate | 14 | $1,002 |
| Dexamethasone | 51 | $977 |
| Ondansetron Hcl | 52 | $658 |
| Gabapentin | 26 | $331 |
| Famotidine | 15 | $309 |
| Prochlorperazine Maleate | 16 | $306 |
| Lidocaine-PrilocaineLidocaine/Prilocaine | 20 | $205 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 13 | $182 |
| Pantoprazole Sodium | 17 | $136 |
| Lactulose | 14 | $136 |
| Potassium Chloride | 17 | $126 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in Duarte
- Marwan FakihDuarte$24.2M
- Sumanta PalDuarte$15.9M
- Daneng LiDuarte$12.4M
- Tanya DorffDuarte$8.7M
- Erminia MassarelliDuarte$7.2M
- Joseph ChaoDuarte$4M
- Karen ReckampDuarte$3.1M
- Yan XingDuarte$2.8M
- Adam RockDuarte$2.7M
- Marianna KoczywasDuarte$2.3M
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.