Stephen Williamson
Medical Oncology · Westwood, KSNPI 1598859183
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 1 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. Every reported general payment came from a single manufacturer, Regeneron. That places this record below the midpoint for medical oncology clinicians in KS, where the typical reported total is $7,378.
Across 1 payment — averaging $54.82 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Regeneron$55
Across 200 payments — averaging $4319.04 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.
- Sanofi US Services Inc.$430K
- Regeneron$283K
- Pharmacyclics LLC, An Abbvie Company$111K
- Daiichi Sankyo Inc.$35K
- Novartis$5K
What the payments were for
- Food & beverage$55100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Regeneron | 1 | $55 |
How this compares
$55 in reported general payments places this provider in the 10th percentile of 25 medical oncology providers in Kansas.
Other medical oncology in Westwood
- Anne OdeaWestwood$2.1M
- Weijing SunWestwood$150K
- Anwaar SaeedWestwood$126K
- Elizabeth WulffWestwood$65K
- Joaquina BarandaWestwood$18K
- Rahul ParikhWestwood$6K
- Saqib AbbasiWestwood$396
- Sarah TaylorWestwood$14
- Benjamin GeorgeColby$433K
- Joseph MooreWichita$41K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.