David Schlossman
Hematology & Oncology · Columbia, MONPI 1790772234
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (57.5%), speaking fees and travel and lodging — rather than concentrated in one kind of arrangement. Roche Molecular Systems, Inc. accounts for 100.0% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2020 at $491,002 and has fallen 82.0% since, to $88,550 in 2024. Among hematology & oncology clinicians in MO with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 67 payments — averaging $18,627 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Roche Molecular Systems, Inc.$1.2M
- Gilead$28
- Johnson & Johnson$12
What the payments were for
- Consulting fees$717,00757%
- Speaking & faculty fees$529,27642%
- Travel & lodging$1,5330%
- Food & beverage$1690%
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 |
|---|---|---|
| Roche Molecular Systems, Inc. | 64 | $1,247,946 |
| Gilead | 2 | $28 |
| Johnson & Johnson | 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.
- DIAGNOSTICS INFORMATION SYSTEMS$491,002
How this compares
$1,247,985 in reported general payments places this provider in the 95th percentile of 211 hematology & oncology providers in Missouri.
Other hematology & oncology in Columbia
- Gerhard HildebrandtColumbia$58K
- Umasankar RamadossColumbia$45K
- Liana MakarianColumbia$27K
- Andrew IliffColumbia$25K
- Cherian VergheseColumbia$20K
- Mark TungesvikColumbia$14K
- Vipul BhanderiColumbia$11K
- Elangovan BalakrishnanColumbia$10K
- Ruo Bing XueColumbia$8K
- Alexandre TungesvikColumbia$5K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.