Public Charity

AMERICAN SOCIETY FOR RADIATION ONCOLOGY

AMERICAN SOCIETY FOR RADIATION ONCOLOGY, of ARLINGTON, VA, is a Public Charity tracked in Imperigo's IRS 990 database. The 2025 filing shows $27.4M in revenue, $25.8M in expenses, $59.5M in total assets. 37 publicly reported grants to this organization, totaling roughly $1.6M, appear in IRS filings.

EIN: 420943164 ARLINGTON, VA Latest filing: 2025
Total Revenue$27.4M
Total Expenses$25.8M
Total Assets$59.5M
Grant Records37
Funding Total$1.6M
Filing Years2021–2025

Mission

TO ADVANCE THE SPECIALTY OF RADIATION ONCOLOGY THROUGH PROMOTION OF ACCESSIBLE, HIGH-QUALITY CARE FOR PEOPLE WITH CANCER, CULTIVATING AND EDUCATING THE WORKFORCE, FOSTERING RESEARCH AND INNOVATION, AND LEADING POLICY DEVELOPMENT AND ADVOCACY.

Officers & Directors

VICE CHAIR TO 10/25, THEN CHAIR Amar Rewari Health Pol Ccl
EDUCATION COUNCIL VICE CHAIR Andrea Ng
COUNCIL VICE CHAIR FROM 10/25 Anita Mahajan Health Policy
VP, MEMBERSHIP & COMMUNICATION Anna Arnone
GOV'T REL COUNCIL CHAIR Casey Chollet-Lipscomb
CCL CHR TO 10/25, THEN PRES ELECT Catheryn Yashar Health Pol

Officer compensation and complete director data available with membership.

Top Grant Purposes

Health & Medicine
$1,187,500 12 grants
General Support
$194,500 19 grants
Education
$37,500 2 grants
Unspecified
$150,000 4 grants

Financial Trends

Year Revenue Expenses Assets
2025 $27.4M $25.8M $59.5M
2024 $25.3M $25.4M $52.5M
2023 $22.7M $24.6M $52.5M
2022 $24.2M $22.3M $49.3M
2021 $22.4M $19.8M $51.9M

Between 2021 and 2025, reported annual revenue grew from $22.4M to $27.4M (+23%), with total assets most recently reported at $59.5M.

Interactive year-over-year charts and full filing details available with membership.

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