Data update history
May 20, 2024
Updated personnel
Identified 4 new personnel
May 18, 2024
Used new vendors
Identified 1 new vendor, including
November 30, 2023
Posted financials
Added Form 990 for fiscal year 2022
November 29, 2023
Updated personnel
Identified 4 new personnel
November 26, 2023
Used new vendors
Identified 1 new vendor, including
Nonprofit Types
Professional associationsBusiness and community development organizationsDisease-focused nonprofitsCharities
Issues
HealthScience and technologyDiseases and disordersMedical disciplinesCommunity improvementCancerBusiness and industry
Characteristics
Tax deductible donationsNo full-time employeesAccepts online donations
General information
- Address
- PO Box 320574
- Alexandria, VA 22320
- Metro area
- Washington-Arlington-Alexandria, DC-VA-MD-WV
- County
- Alexandria city, VA
- Website URL
- ctos.org/Â
- Phone
- (301) 502-7371
IRS details
- EIN
- 54-1753869
- Fiscal year end
- December
- Taxreturn type
- Form 990
- Year formed
- 1995
- Eligible to receive tax-deductible contributions (Pub 78)
- Yes
Categorization
- NTEE code, primary
- G03: Voluntary Health Associations and Medical Disciplines Professional Societies and Associations
- NAICS code, primary
- 813920: Professional Associations
- Parent/child status
- Independent
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