Nonprofit · EIN 46-4900421
INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES
Tax-exempt · MILWAUKEE, WI 53202
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990 | $875,060 | $828,786 | $46,274 | $976,409 | $168,386 | $808,023 |
| December 31, 2023 | 990 | $419,613 | $369,949 | $49,664 | $838,046 | $76,297 | $761,749 |
Financial details: 990 for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $8,535
- Program service revenue
- $847,010
- Investment income
- $8,597
- Royalties
- $10,904
- Other revenue
- $10,918
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $329
- Accounting fees
- $8,100
- Travel
- $20,399
- Program services (functional)
- $734,782
- Management and general (functional)
- $94,004
Balance sheet and other
- Total assets, start of year
- $838,046
- Total assets, end of year
- $976,409
- Total liabilities, end of year
- $168,386
- Net assets, end of year
- $808,023
- Net assets without donor restrictions
- $808,023
- Gross receipts
- $875,060
- Employees
- 0
- Volunteers
- 11
- Year formed
- 2013
- State of legal domicile
- DC
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, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LEO SCHULTZE KOOL | PRESIDENT Trustee or director, Officer | 3 | $0 |
| FRANCINE BLEI | PAST PRESIDENT Trustee or director, Officer | 1 | $0 |
| MARIA GARZON | TREASURER Trustee or director, Officer | 1 | $0 |
| JUAN-CARLOS LOPEZ-GUTIERREZ | PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 |
| DENISE ADAMS | SECRETARY Trustee or director, Officer | 1 | $0 |
| MIIKKA VIKKULA | VICE PRESIDENT Trustee or director, Officer | 1 | $0 |
| DOV GOLDENBERG | SCIENTIFIC COMMITTEE CHAIR Trustee or director | 1 | $0 |
| GRESHAM RICHTER | EDITOR-IN-CHIEF Trustee or director | 1 | $0 |
| MICHEL WASSEF | MEMBER AT LARGE Trustee or director | 1 | $0 |
| ANNOUK BISDORFF | MEMBER AT LARGE Trustee or director | 1 | $0 |
| EULALIA BASELGA | MEMBER AT LARGE Trustee or director | 1 | $0 |
990 for the year ended December 31, 2023: 12 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TONY PENINGTON | PAST PRESIDENT Trustee or director, Officer | 1 | $0 |
| FRANCINE BLEI | PRESIDENT Trustee or director, Officer | 3 | $0 |
| MARIA GARZON | TREASURER Trustee or director, Officer | 1 | $0 |
| LEO SCHULTZE KOOL | PRESIDENT-ELECT Trustee or director, Officer | 1 | $0 |
| DENISE ADAMS | SECRETARY Trustee or director, Officer | 1 | $0 |
| JUAN-CARLOS LOPEZ-GUTIERREZ | VICE PRESIDENT Trustee or director, Officer | 1 | $0 |
| DOV GOLDENBERG | SCIENTIFIC COMMITTEE CHAIR Trustee or director | 1 | $0 |
| GRESHAM RICHTER | EDITOR-IN-CHIEF Trustee or director | 1 | $0 |
| MICHEL WASSEF | MEMBER AT LARGE Trustee or director | 1 | $0 |
| ANNOUK BISDORFF | MEMBER AT LARGE Trustee or director | 1 | $0 |
| MIIKKA VIKKULA | MEMBER AT LARGE Trustee or director | 1 | $0 |
| EULALIA BASELGA | MEMBER AT LARGE Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 555 E WELLS ST STE 1100, MILWAUKEE, WI 53202-3800
- In care of
- % BEN TESDAHL
- Principal officer (990 for 2024)
- LEO SCHULTZE KOOL, 555 E WELLS ST 1100, MILWAUKEE, WI 53202
- Signed the 990
- MARIA C GARZON MD, TREASURER
- Phone
- (414) 918-9877
- Website
- ISSVA.ORG
- 990-N for 2017 filed under this EIN
- Most likely by a chapter, club or affiliate (it says receipts are normally $50,000 or less). Officer: Ilona Frieden, 1825 Fourth St Fifth Floor 5B, SAN FRANCISCO CA 94158. Mailing address: 555 E WELLS STREET SUITE 1100, MILWAUKEE WI 53202. Website: http://www.issva.org
- Return prepared by
- REILLY PENNER & BENTON LLP
Mission
ISSVA IS A MULTIDISCIPLINARY INTERNATIONAL SOCIETY OF PHYSICIANS, SCIENTISTS, AND HEALTH CARE PROVIDERS UNITED BY AN INTEREST IN VASCULAR ANOMALIES. ISSVA AIMS TO PROMOTE THE HIGHEST STANDARDS OF CARE FOR PATIENTS WITH VASCULAR ANOMALIES BY ADVANCING CLINICAL AND SCIENTIFIC KNOWLEDGE CONCERNING CAUSES, DIAGNOSIS AND TREATMENT, AND BY EDUCATION OF PHYSICIANS, HEALTH CARE PROVIDERS, PATIENTS AND THE COMMUNITY.
Program accomplishments
- ANNUAL MEETING - PROVIDE THE OPPORTUNITY TO LEARN THROUGH A MULTI-DISCIPLINARY APPROACH AND WILL BE ATTENDED BY A WIDE ARRAY OF SPECIALISTS SUCH AS DERMATOLOGISTS, INTERVENTIONAL RADIOLOGISTS, HEMATOLOGISTS/ONCOLOGISTS, PLASTIC SURGEONS, OTOLARYNGOLOGISTS, BASIC SCIENTISTS, OTHER SURGEONS, GENETICS, PATHOLOGISTS, NURSES, ETC.Expenses $721,520 · revenue $735,985
- MISCELLANEOUS PROGRAM SERVICES, INCLUDING JOURNAL PUBLICATIONS AND MEMBERSHIP DUES.Expenses $13,262 · revenue $121,929
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 | Not 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
- 46-4900421
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2014
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Voluntary health associations and medical disciplines (G43)
- Assets (IRS master file)
- $976,409
- Income (IRS master file)
- $875,060
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2024 | $875,060 | $828,786 | $976,409 | IRS |
| 990 | December 2023 | $419,613 | $369,949 | $838,046 | XML |
| 990 | December 2022 | $652,718 | $454,896 | $752,946 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
| 990-N for 2017 Officer: Ilona Frieden Filed under this EIN, most likely by a chapter or affiliate | December 31, 2017 | ≤ $50,000 receipts | – | – | e-Postcard |
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 46-4900421).
Questions about INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES
- What is the EIN of INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES?
- The employer identification number (EIN) of INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES is 46-4900421.
- Is INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
- Are donations to INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES 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 FOR THE STUDY OF VASCULAR ANOMALIES due?
- The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2024.
- Who is the principal officer of INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES?
- The 990 for the year ended December 31, 2024 names LEO SCHULTZE KOOL.
- Who are the officers and directors of INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES?
- The 990 for the year ended December 31, 2024 lists 11 people; 0 received compensation from the organization.
- How much revenue does INTERNATIONAL SOCIETY FOR THE STUDY OF VASCULAR ANOMALIES have?
- On its 990 for the year ended December 31, 2024 it reported revenue of $875,060, expenses of $828,786 and total assets of $976,409 at year end.
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All nonprofits in MILWAUKEE · Wisconsin · Voluntary health associations and medical disciplines