Randy Sorum, MD
Radiation Oncology · Sioux City, IANPI 1720059181
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 99.5% of the total across 152 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 46 manufacturers, the largest accounting for just 14.0% — the pattern of someone who eats at a lot of different presentations. Reporting peaked in 2019 at $1,121 and has fallen 56.1% since, to $492 in 2025. Among radiation oncology clinicians in IA 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 152 payments — averaging $17.90 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bayer$382
- AstraZeneca$229
- Boston Scientific$219
- Johnson & Johnson$165
- Merck$151
- Incyte Corporation$139
- plus $1K from 40 others
What the payments were for
- Food & beverage$2,709100%
- Education$130%
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.
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.
How this compares
$2,721 in reported general payments places this provider in the 90th percentile of 55 radiation oncology providers in Iowa.
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.
Other radiation oncology in Sioux City
- August AndersonSioux City$594
- Dev PuriDes Moines$32K
- Kristin PlichtaIowa City$6K
- Arshin SheybaniDes Moines$4K
- Robert IsaakDes Moines$3K
- Malgorzata KozakIowa City$2K
- Edward MilesDubuque$2K
- Christine SharisDavenport$2K
- Mark SmithIowa City$2K
- Addison WillettIowa City$1K
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.