Nonprofit · EIN 54-1609762
INTERNATIONAL SOCIETY OF RADIOLOGY
Tax-exempt · RESTON, VA 20191
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $290,806 | $188,566 | $102,240 | $1,981,562 | $35,204 | $1,946,358 |
| December 31, 2024 | 990 | $212,045 | $121,143 | $90,902 | $1,644,844 | $64,661 | $1,580,183 |
| December 31, 2023 | 990 | $103,546 | $130,975 | -$27,429 | $1,527,513 | $30,743 | $1,496,770 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $65,707
- Investment income
- $225,099
- Net gain from sales of assets
- $182,582
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $744
- Travel
- $34,173
- Program services (functional)
- $139,742
- Management and general (functional)
- $48,824
Balance sheet and other
- Total assets, start of year
- $1,644,844
- Total assets, end of year
- $1,981,562
- Total liabilities, end of year
- $35,204
- Net assets, end of year
- $1,946,358
- Publicly traded securities
- $1,759,354
- Net assets without donor restrictions
- $1,946,358
- Gross receipts
- $928,795
- Employees
- 0
- Volunteers
- 30
- Year formed
- 1994
- State of legal domicile
- IL
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| BIBB ALLEN | PRESIDENT Trustee or director, Officer | 3 | $0 |
| ANTONIA ARJONILLA | SPAIN, NAT. Trustee or director | 1 | $0 |
| ADRIAN P BRADY | ESR Trustee or director | 1 | $0 |
| BORIS BRKLJACIC | SECRETARY-GE Trustee or director, Officer | 2 | $0 |
| LUIS CAMPOS | CIR Trustee or director | 1 | $0 |
| TAREK EL DIASTY | ASR Trustee or director | 1 | $0 |
| BEATRIZ GONZALEZ | TREASURER Trustee or director, Officer | 2 | $0 |
| LAMLA JAMJOOM | PAARS Trustee or director | 1 | $0 |
| WHAL LEE | SOUTH KOREA, Trustee or director | 1 | $0 |
| ALAN MATSUMOTO | ACR Trustee or director | 1 | $0 |
| RENATO MENDONCA | PAST PRESIDE Trustee or director, Officer | 1 | $0 |
| EDWARD MWANSA | ZAMBIA, NAT. Trustee or director | 1 | $0 |
| EMAD NAGUIB | EGYPT, NAT. Trustee or director | 1 | $0 |
| JORGE SOTO | RSNA Trustee or director | 1 | $0 |
| JEAN-PIERRE TASU | FRANCE, NAT. Trustee or director | 1 | $0 |
3 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| NORIYUKI TOMIYAMA | AOSR Trustee or director | 1 | $0 |
| SUDHIR VINAYAK | PRESIDENT-EL Trustee or director, Officer | 1 | $0 |
| MEG SAMPLES | EXECUTIVE DI Officer | 4 | $0 |
990 for the year ended December 31, 2024: 18 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Bibb Allen | President Trustee or director, Officer | 3 | $0 |
| Renato Mendonca | Past President Trustee or director, Officer | 1 | $0 |
| Sudhir Vinayak | President-Elect Trustee or director, Officer | 1 | $0 |
| Boris Brkljacic | Secretary-General Trustee or director, Officer | 2 | $0 |
| Beatriz Gonzalez | Treasurer Trustee or director, Officer | 2 | $0 |
| Alan Matsumoto | ACR Trustee or director | 1 | $0 |
| Adrian P Brady | ESR Trustee or director | 1 | $0 |
| Jorge Soto | RSNA Trustee or director | 1 | $0 |
| Noriyuki Tomiyama | AOSR Trustee or director | 1 | $0 |
| Tarek El Diasty | ASR Trustee or director | 1 | $0 |
| Luis Campos | CIR Trustee or director | 1 | $0 |
| Lamla Jamjoom | PAARS Trustee or director | 1 | $0 |
| Emad Naguib | Egypt, national delegate Trustee or director | 1 | $0 |
| Jean-Pierre Tasu | France, national delegate Trustee or director | 1 | $0 |
| Whal Lee | South Korea, national delegate Trustee or director | 1 | $0 |
| Antonia Arjonilla | Spain, national delegate Trustee or director | 1 | $0 |
| Edward Mwansa | Zambia, national delegate Trustee or director | 1 | $0 |
| Meg Samples | Executive Director Officer | 4 | $0 |
990 for the year ended December 31, 2023: 18 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Bibb Allen | President Trustee or director, Officer | 3 | $0 |
| Renato Mendonca | Past President Trustee or director, Officer | 1 | $0 |
| Sudhir Vinayak | President-Elect Trustee or director, Officer | 1 | $0 |
| Boris Brkljacic | Secretary-General Trustee or director, Officer | 2 | $0 |
| Beatriz Gonzalez | Treasurer Trustee or director, Officer | 2 | $0 |
| Alan Matsumoto | ACR Trustee or director | 1 | $0 |
| Adrian P Brady | ESR Trustee or director | 1 | $0 |
| Umar Mahmood | RSNA Trustee or director | 1 | $0 |
| Noriyuki Tomiyama | AOSR Trustee or director | 1 | $0 |
| Tarek El Diasty | ASR Trustee or director | 1 | $0 |
| Luis Campos | CIR Trustee or director | 1 | $0 |
| Lamla Jamjoom | PAARS Trustee or director | 1 | $0 |
| Emad Naguib | Egypt, national delegate Trustee or director | 1 | $0 |
| Jean-Pierre Tasu | France, national delegate Trustee or director | 1 | $0 |
| Whal Lee | South Korea, national delegate Trustee or director | 1 | $0 |
| Antonia Arjonilla | Spain, national delegate Trustee or director | 1 | $0 |
| Edward Mwansa | Zambia, national delegate Trustee or director | 1 | $0 |
| Meg Samples | Executive Director Officer | 4 | $0 |
Address and contacts
- Address (IRS master file)
- 1892 PRESTON WHITE DRIVE, RESTON, VA 20191-5497
- Principal officer (990 for 2025)
- BIBB ALLEN, 1892 PRESTON WHITE DRIVE, RESTON, VA 20191
- Signed the 990
- BIBB ALLEN, PRESIDENT
- Phone
- (703) 648-8900
- Website
- WWW.ISRADIOLOGY.ORG
- Return prepared by
- TURPIN & ASSOCIATES PC
Mission
THE PRINCIPAL FUNCTION OF THE SOCEITY IS TO SUPPORT EDUCATION EFFORTS FOR RADIOLOGISTS, PHYSICISTS, TECHNOLOGISTS, AND OTHER RADIATION WORKERS. THE SOCIETY IS ALSO CONCERNED WITH RADIATION PROTECTION OF PATIENTS AND WORKERS AND WITH CONDITIONS FOR THE PRACTICE OF DIAGNOSTIC RADIOLOGY IN VARIOUS COUNTRIES AND PRACTICE SETTINGS.
Program accomplishments
- THE SOCIETY HAS CONDUCTED SEVERAL EDUCATIONAL AND INFORMATIONAL PROGRAMS TO CARRY OUT ITS PURPOSE. THE SOCIETY SERVES AS A CONFEDERATION OF MORE THAN 50 WORLD'S NATIONAL RADIOLOGICAL SOCIETIES. THE INTERNATIONAL SOCIETY OF RADIOLOGY IS AN NGO IN OFFICIAL RELATION WITH THE WORLD HEALTH ORGANIZATION. THE MISSION OF THE ISR AS A REPRESENTATIVE NGO IS TO FACILITATE THE GLOBAL ENDEAVORS OF THE ISR'S MEMBER ORGANIZATIONS TO IMPROVE PATIENT CARE AND POPULATION HEALTH THROUGH MEDICAL IMAGING.
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 54-1609762
- Tax-exempt status
- 501(c)(6): Business league or chamber of commerce
- Donations deductible
- No
- Exempt since
- 1997
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $1,981,562
- Income (IRS master file)
- $928,795
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $290,806 | $188,566 | $1,981,562 | XML |
| 990 | December 2024 | $212,045 | $121,143 | $1,644,844 | XML |
| 990 | December 2023 | $103,546 | $130,975 | $1,527,513 | XML |
| 990 | December 2022 | $122,007 | $91,750 | $1,408,150 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990 | December 2017 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 54-1609762).
Questions about INTERNATIONAL SOCIETY OF RADIOLOGY
- What is the EIN of INTERNATIONAL SOCIETY OF RADIOLOGY?
- The employer identification number (EIN) of INTERNATIONAL SOCIETY OF RADIOLOGY is 54-1609762.
- Is INTERNATIONAL SOCIETY OF RADIOLOGY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1997.
- Are donations to INTERNATIONAL SOCIETY OF RADIOLOGY tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does INTERNATIONAL SOCIETY OF RADIOLOGY file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of INTERNATIONAL SOCIETY OF RADIOLOGY due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did INTERNATIONAL SOCIETY OF RADIOLOGY last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of INTERNATIONAL SOCIETY OF RADIOLOGY?
- The 990 for the year ended December 31, 2025 names BIBB ALLEN.
- Who are the officers and directors of INTERNATIONAL SOCIETY OF RADIOLOGY?
- The 990 for the year ended December 31, 2025 lists 18 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL SOCIETY OF RADIOLOGY have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $290,806, expenses of $188,566 and total assets of $1,981,562 at year end.
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