Radiation Oncology Institute in Arlington, Virginia (VA)

Employer Identification Number (EIN)	51-0178702
Name of Organization	Radiation Oncology Institute
Previous Names	American Society Of Therapeutic Radiologists Education & Developme (2005)
Address	251 18th St South 8th Floor, Arlington, VA 22202-3531
Previous Addresses	251 18th St South 8th Floor, Arlington, VA 22202-0000 (2022) 251 18th St South 8th Floor, Arlington, VA 22202-3531 (2015 - 2021) 8280 Willow Oaks Corporate Drive No, Fairfax, VA 22031-4518 (2012 - 2013) 8280 Willow Oaks Corp Dr Ste 500, Fairfax, VA 22031-0000 (2006 - 2011) 12500 Fair Lakes Cir Ste 375, Fairfax, VA 22033-3846 (2005)
Subsection(s) / Classification	Charitable Organization
Affiliation	Independent
Ruling Date	08/2025
Deductibility	Contributions are deductible
Foundation	Organization which receives a substantial part of its support from a governmental unit or the general public
Activities	Student exchange with foreign country
Organization	Corporation
Exempt Organization Status	Unconditional Exemption
Tax Period	12/2024
Asset	$10,000,000 to $49,999,999
Income	$1,000,000 to $4,999,999
Filing Requirement	990 (all other) or 990EZ return
Accounting Period	December (12)
Asset Amount	$18,112,982
Income Amount	$1,751,833
Form 990 Revenue Amount	$983,846
National Taxonomy of Exempt Entities (NTEE)	Diseases, Disorders, Medical Disciplines: Cancer

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