Donald Kohn
Pediatric Hematology-Oncology · Los Angeles, CANPI 1912098286
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (59.1%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. CSL Behring accounts for 66.0% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2020 at $7,981 and has fallen 86.8% since, to $1,050 in 2023.
Across 13 payments — averaging $938.75 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- CSL Behring$8K
- Leadiant Biosciences, Inc.$2K
- Chiesi USA, Inc.$2K
Across 8 payments — averaging $70,781 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.
- Biomarin Pharmaceutical Inc.$412K
- CSL Behring$153K
- Leadiant Biosciences, Inc.$1K
What the payments were for
- Consulting fees$4,15034%
- Speaking & faculty fees$7,21559%
- Travel & lodging$3943%
- Food & beverage$4454%
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 |
|---|---|---|
| CSL Behring | 10 | $8,054 |
| Leadiant Biosciences, Inc. | 1 | $2,400 |
| Chiesi USA, Inc. | 2 | $1,750 |
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.
- Revcovi$3,450
How this compares
$12,204 in reported general payments places this provider in the 80th percentile of 307 pediatric hematology-oncology providers in California.
See all pediatric hematology-oncology providers in California →
Other pediatric hematology-oncology in Los Angeles
- Noah FedermanLos Angeles$399K
- Jan van TornoutLos Angeles$137K
- Thomas CoatesLos Angeles$99K
- Andrew DietzLos Angeles$88K
- Geetha PuthenveetilLos Angeles$62K
- Hisham Abdel AzimLos Angeles$52K
- Michael PulsipherLos Angeles$45K
- Leo MascarenhasLos Angeles$35K
- Edward GompertsLos Angeles$28K
- Paibel Aguayo-HiraldoLos Angeles$21K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.