Mark Walters
Pediatric Hematology-Oncology · Oakland, CANPI 1588753610
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $52,152 of the $68,998 with a category attached, or 75.6%. Vertex accounts for 70.4% of it on its own, with 6 other manufacturers making up the rest. Reporting peaked in 2024 at $19,464 and has fallen 52.7% since, to $9,212 in 2025. Among pediatric hematology-oncology clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 37 payments — averaging $1864.80 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Vertex$49K
- Sanofi US Services Inc.$9K
- CSL Behring$6K
- Spark Therapeutics, Inc.$4K
- Novartis$600
- Bioverativ Therapeutics Inc.$208
- plus $63 from 1 others
Across 80 payments — averaging $23,256 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.
- Bioverativ Therapeutics Inc.$757K
- Genetix Biotherapeutics Inc$717K
- Sanofi US Services Inc.$322K
- National Marrow Donor Program$65K
What the payments were for
- Consulting fees$52,15276%
- Speaking & faculty fees$4,7007%
- Grants$6001%
- Travel & lodging$10,69215%
- Food & beverage$8531%
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 |
|---|---|---|
| Vertex | 21 | $48,575 |
| Sanofi US Services Inc. | 5 | $9,282 |
| CSL Behring | 5 | $5,919 |
| Spark Therapeutics, Inc. | 1 | $4,350 |
| Novartis | 1 | $600 |
| Bioverativ Therapeutics Inc. | 3 | $208 |
| Genetix Biotherapeutics Inc | 1 | $63 |
How this compares
$68,998 in reported general payments places this provider in the 90th percentile of 307 pediatric hematology-oncology providers in California.
See all pediatric hematology-oncology providers in California →
Other pediatric hematology-oncology in Oakland
- Caroline HastingsOakland$127K
- Elliott VichinskyOakland$73K
- Ashutosh LalOakland$21K
- Anurag AgrawalOakland$17K
- Philip PizzoPalo Alto$2.6M
- Vinod BalasaMadera$508K
- Akshat JainRedlands$447K
- Noah FedermanLos Angeles$399K
- Vanessa Salinas-LunaOrange$344K
- Daniel KraftStanford$294K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.