David Alejos Castillo, MD
Internal Medicine · Bronx, NYNPI 1104320506
Payments from drug & device makers
Across 30 payments — averaging $58.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$1K
- Exelixis Inc.$175
- AstraZeneca$128
- Eisai Inc.$55
- Sanofi$22
- Daiichi Sankyo Inc.$20
- plus $100 from 6 others
What the payments were for
- Food & beverage$56833%
- Other$1,18067%
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 |
|---|---|---|
| Novartis | 16 | $1,248 |
| Exelixis Inc. | 1 | $175 |
| AstraZeneca | 2 | $128 |
| Eisai Inc. | 3 | $55 |
| Sanofi | 1 | $22 |
| Daiichi Sankyo Inc. | 1 | $20 |
| E.r. Squibb & Sons, L.L.C. | 1 | $19 |
| Pfizer | 1 | $19 |
| Merck | 1 | $18 |
| Servier Pharmaceuticals LLC | 1 | $16 |
| Iovance Biotherapeutics, Inc. | 1 | $14 |
| Genentech USA, Inc. | 1 | $14 |
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.
- Cabometyx$175
How this compares
$1,748 in reported general payments places this provider in the 75th percentile of 9,771 internal medicine providers in New York.
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 |
|---|---|---|
| Dexamethasone | 16 | $505 |
| Ondansetron OdtOndansetron | 18 | $462 |
| Ondansetron Hcl | 13 | $413 |
| Prochlorperazine Maleate | 24 | $311 |
| Famotidine | 14 | $237 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Bronx
- Benjamin GartrellBronx$6.3M
- David SteinBronx$2.4M
- Haiying ChengBronx$1.7M
- Jason LeiderBronx$1.4M
- Helena YuNew York$50.9M
- Neha KordeNew York$21.2M
- Karen AutioNew York$18.5M
- Ingo MellinghoffNew York$16.1M
- Gopakumar IyerNew York$12.4M
- David DoveEast Hampton$12.3M
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.