Michal Bar-Natan, MD
Medical Oncology · New York, NYNPI 1033344312
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $2,000 of the $2,090 with a category attached, or 95.7%. Pfizer accounts for 95.7% of it on its own, with 1 other manufacturer making up the rest. That places this record below the midpoint for medical oncology clinicians in NY, where the typical reported total is $4,912.
Across 2 payments — averaging $1045.04 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$2K
- Adaptive Biotechnologies Corporation$90
Across 15 payments — averaging $30,683 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Amgen$460K
- Bristol Myers Squibb$423
What the payments were for
- Speaking & faculty fees$2,00096%
- Food & beverage$904%
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 |
|---|---|---|
| Pfizer | 1 | $2,000 |
| Adaptive Biotechnologies Corporation | 1 | $90 |
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.
- BESPONSA$2,000
How this compares
$2,090 in reported general payments places this provider in the 40th percentile of 498 medical oncology 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 |
|---|---|---|
| Posaconazole | 11 | $41,010 |
| Entecavir | 13 | $3,827 |
| ValacyclovirValacyclovir Hcl | 18 | $439 |
| Acyclovir | 16 | $318 |
| Levofloxacin | 16 | $240 |
| Finasteride | 13 | $96 |
| Famotidine | 14 | $50 |
Paid to pharmacies, not to this prescriber.
Other medical oncology in New York
- Craig ThompsonNew York$4.8M
- Andrew SeidmanNew York$1.3M
- Joshua RichterNew York$971K
- Edward GelmannNew York$944K
- Ghassan Abou-AlfaNew York$825K
- Miguel PeralesNew York$769K
- Komal JhaveriNew York$642K
- Joshua BrodyNew York$492K
- Aiwu HeNew York$445K
- Raajit RampalNew York$418K
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.