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Nonprofit · EIN 52-1265361

THE MARFAN FOUNDATION INC

Tax-exempt · PRT WASHINGTN, NY 11050

Financials

$5.5M$6.6M2023$7.8M$7.6M2024
Revenue Expenses · by fiscal year end
Financials of THE MARFAN FOUNDATION INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$7,780,692$7,566,004$214,688$19,547,558$2,672,468$16,875,090
June 30, 2024990$5,486,020$6,646,776-$1,160,756$18,118,070$1,860,516$16,257,554
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$6,904,067
Program service revenue
$34,390
Investment income
$842,235
Net gain from sales of assets
$317,156
Other revenue
$0

Expenses

Grants and similar amounts paid
$1,529,718
Compensation of officers, directors and key employees
$891,234
Other salaries and wages
$2,759,368
Salaries, compensation and benefits (total)
$4,262,612
Professional fundraising fees
$0
Accounting fees
$41,354
Occupancy
$51,316
Travel
$414,883
Depreciation
$37,190
Program services (functional)
$6,284,560
Management and general (functional)
$455,733
Fundraising (functional)
$825,711

Balance sheet and other

Total assets, start of year
$18,118,070
Total assets, end of year
$19,547,558
Total liabilities, end of year
$2,672,468
Net assets, end of year
$16,875,090
Land, buildings and equipment
$543,808
Publicly traded securities
$12,440,501
Net assets without donor restrictions
$9,945,445
Net assets with donor restrictions
$6,929,645
Gross receipts
$12,512,714
Employees
30
Volunteers
510
Year formed
1981
State of legal domicile
MD

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 June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationOther / benefits
MICHAEL L WEAMERPRES/CEO
Officer
35$474,635$28,106
HELAINE BARUCHCHIEF DEVELOPMENT OFFICER
Highest-paid employee
35$250,145$18,163
JOSEPHINE GRIMACHIEF SCIENCE OFFICER
Highest-paid employee
35$210,325$18,163
EILEEN NOVINSCHIEF PROGRAM OFFICER
Highest-paid employee
35$194,453$18,163
INDERJEET KAUR CPACHIEF FINANCIAL OFFICER
Officer
35$168,021$18,163
JUDITH GIBALDICHIEF OPERATIONS OFFICER
Officer
35$125,230$28,106
KIMBERLY K HUDDLESTONVP. OF DEVELOPMENT
Highest-paid employee
35$138,012$326
LAUREN E MAYDIRECTOR OF RESEARCH
Highest-paid employee
35$131,724$326
BERT MEDINACHAIR
Trustee or director, Officer
8$0$0
CORY A EAVESIMMEDIATE PAST CHAIR
Trustee or director, Officer
1$0$0
CARYN E KAUFFMAN CPATREASURER
Trustee or director, Officer
3$0$0
PATRICIA MCCABE ESTRADASECRETARY
Trustee or director, Officer
1$0$0
SCOTT D AVITABILE ESQDIRECTOR
Trustee or director
1$0$0
GIL BASHEDIRECTOR
Trustee or director
1$0$0
JUAN BOWEN MDDIRECTOR
Trustee or director
1$0$0
17 more people on this return
NameTitleHours / weekCompensation
ALAN BRAVERMAN MDDIRECTOR
Trustee or director
1$0
DUKE CAMERON MDDIRECTOR
Trustee or director
1$0
RAY CHEVALLIERDIRECTOR
Trustee or director
1$0
BRANDY BANKS HOTCHKISSDIRECTOR
Trustee or director
1$0
GARY KAUFFMANDIRECTOR
Trustee or director
1$0
JERRY L LERMANDIRECTOR
Trustee or director
1$0
JEFFREY C LESAGEDIRECTOR
Trustee or director
1$0
SINCLAIR LIDIRECTOR
Trustee or director
1$0
BRYAN MAHERDIRECTOR
Trustee or director
1$0
JESS MILBURNDIRECTOR
Trustee or director
1$0
JAMES PRUTOWDIRECTOR
Trustee or director
1$0
JOAQUIN RAMOS JRDIRECTOR
Trustee or director
1$0
DAWN REINERDIRECTOR
Trustee or director
1$0
ANDREW TOYDIRECTOR
Trustee or director
1$0
JON R TULLISDIRECTOR
Trustee or director
1$0
DAVID WARRENDIRECTOR
Trustee or director
1$0
ANTHONY YASICK MDDIRECTOR
Trustee or director
1$0
990 for the year ended June 30, 2024: 29 people
NameTitleHours / weekCompensationOther / benefits
MICHAEL L WEAMERPRES/CEO
Officer
35$457,343$27,314
HELAINE BARUCHCHIEF DEVELOPMENT OFFICER
Highest-paid employee
35$243,822$17,371
JOSEPHINE GRIMACHIEF SCIENCE OFFICER
Highest-paid employee
35$207,595$17,371
EILEEN NOVINSCHIEF GLOBAL BUSINESS DEVEL. OFFICER
Highest-paid employee
35$189,021$17,371
INDERJEET KAUR CPACHIEF FINANCIAL OFFICER
Officer
35$154,779$17,371
LAUREN E MAYDIRECTOR OF RESEARCH
Highest-paid employee
35$131,937$17,371
JUDITH GIBALDICHIEF OPERATIONS OFFICER
Officer
35$118,377$27,314
KIMBERLY K HUDDLESTONVP. OF DEVELOPMENT
Highest-paid employee
35$117,954$17,371
BERT MEDINACHAIR
Trustee or director, Officer
8$0$0
CORY A EAVESIMMEDIATE PAST CHAIR
Trustee or director, Officer
1$0$0
CARYN E KAUFFMAN CPATREASURER
Trustee or director, Officer
3$0$0
PATRICIA MCCABE ESTRADASECRETARY
Trustee or director, Officer
1$0$0
JERRY L LERMANDIRECTOR
Trustee or director
1$0$0
ALAN BRAVERMAN MDDIRECTOR
Trustee or director
1$0$0
BRANDY BANKS HOTCHKISSDIRECTOR
Trustee or director
1$0$0
GIL BASHEDIRECTOR
Trustee or director
1$0$0
JOAQUIN RAMOS JRDIRECTOR
Trustee or director
1$0$0
JEFFREY C LESAGEDIRECTOR
Trustee or director
1$0$0
SINCLAIR LIDIRECTOR
Trustee or director
1$0$0
DAVID WARRENDIRECTOR
Trustee or director
1$0$0
ANDREW TOYDIRECTOR
Trustee or director
1$0$0
GARY KAUFFMANDIRECTOR
Trustee or director
1$0$0
JON TULLISDIRECTOR
Trustee or director
1$0$0
SCOTT D AVITABILE ESQDIRECTOR
Trustee or director
1$0$0
ANTHONY YASICK MDDIRECTOR
Trustee or director
1$0$0
JUAN BOWEN MDDIRECTOR
Trustee or director
1$0$0
RAY CHEVALLIERDIRECTOR
Trustee or director
1$0$0
JAMES PRUTOWDIRECTOR
Trustee or director
1$0$0
DAWN REINERDIRECTOR
Trustee or director
1$0$0

Address and contacts

Address (IRS master file)
22 MANHASSET AVE, PRT WASHINGTN, NY 11050-2023
Principal officer (990 for 2024)
MICHAEL L WEAMER, 22 MANHASSET AVENUE, PORT WASHINGTON, NY 110502023
Signed the 990
MICHAEL L WEAMER, PRESIDENT AND CEO
Phone
(516) 883-8712
Return prepared by
CBIZ ADVISORS LLC

Mission

SEE SCHEDULE O.THE MARFAN FOUNDATION DRIVES RESEARCH, EDUCATION AND SUPPORT AND BUILDS COMMUNITY TO IMPROVE OUTCOMES, SAVE LIVES AND EMPOWER ALL PEOPLE TO THRIVE WHO ARE LIVING WITH MARFAN, LOEYS-DIETZ, VASCULAR EHLERS-DANLOS SYNDROMES, AND RELATED GENETIC AORTIC AND VASCULAR CONDITIONS. *WE PURSUE THE MOST INNOVATIVE RESEARCH AND MAKE SURE THAT IT RECEIVES PROPER FUNDING. *WE FOSTER AN INFORMED PUBLIC AND EDUCATED PATIENT COMMUNITY TO INCREASE EARLY DIAGNOSIS AND ENSURE LIFE-SAVING TREATMENT. *WE PROVIDE DEDICATED SUPPORT TO FAMILIES, CAREGIVERS, AND HEALTHCARE PROVIDERS.

990 for the year ended June 30, 2025

Program accomplishments

  • SEE SCHEDULE O.RESEARCH -EXPENSES $2,811,733, GRANTS $1,512,774, REVENUE $0THE MARFAN FOUNDATION ADVANCES RESEARCH THAT SAVES LIVES AND DRAMATICALLY ENHANCES THE QUALITY OF LIFE FOR PEOPLE LIVING WITH MARFAN SYNDROME, LOEYS-DIETZ SYNDROME, VEDS, AND RELATED GENETIC AORTIC AND VASCULAR CONDITIONS. OUR RESEARCH PROGRAM HAS ADVANCED SCIENCE SINCE 1981, FUNDING 176 RESEARCH GRANTS SINCE 1986. THE RESEARCH WE'VE SUPPORTED HAS HELPED REDUCE LIFE-THREATENING PROBLEMS, IDENTIFIED TREATMENTS THAT HAVE IMPROVED QUALITY OF LIFE, AND HELPED PEOPLE LIVE LONGER LIVES. THE MARFAN FOUNDATION COLLABORATES WITH THE RESEARCH COMMUNITY AND ORGANIZATIONS TO IDENTIFY NEW THERAPIES AND TREATMENTS DOMESTICALLY AND AROUND THE GLOBE. THE FOUNDATION'S TWO-YEAR AND FOUR-YEAR GRANTS MECHANISMS HELP ENSURE A PIPELINE OF DEDICATED FELLOWS, NEW INVESTIGATORS, AND FACULTY MEMBERS WHO ARE COMMITTED TO THE SCIENTIFIC DISCOVERY NECESSARY TO ADVANCE UNDERSTANDING OF RARE DISEASES. THE FOUNDATION CONVENES NATIONAL AND INTERNATIONAL RESEARCH CONFERENCES, FACILITATES COLLABORATIONS AMONG RESEARCHERS AND RESEARCH INSTITUTIONS, AND HOLDS SYMPOSIUMS IN THE US AND ABROAD TO FACILITATE THE SHARING OF RESEARCH FINDINGS THAT EXPEDITE PROGRESS. THE MARFAN FOUNDATION PARTNERS WITH GOVERNMENT AGENCIES AND OTHER HEALTHCARE ORGANIZATIONS TO ADVANCE ITS RESEARCH GOALS AND ADVOCATE FOR ADDITIONAL RESEARCH FUNDING FROM THE GOVERNMENT.
    Expenses $2,811,733 · grants $1,512,774
  • SEE SCHEDULE O.SUPPORT -EXPENSES $2,092,564, GRANTS $12,297, REVENUE $32,885THE MARFAN FOUNDATION OFFERS CUTTING-EDGE FACT-BASED INFORMATION ABOUT MARFAN, LOEYS-DIETZ, VASCULAR EHLERS-DANLOS (VEDS), AND OTHER GENETIC AORTIC AND VASCULAR CONDITIONS. WE REACH A WORLDWIDE AUDIENCE DIGITALLY AND THROUGH IN-PERSON PROGRAMMING. THROUGH OUR INSTITUTIONAL DIRECTORY, THE MARFAN FOUNDATION CONNECTS THOUSANDS OF INDIVIDUALS AND FAMILIES TO MORE THAN 70 U.S. - AND A GROWING NUMBER OF GLOBAL - INSTITUTIONS OFFERING EXPERTISE IN MARFAN, LDS, VEDS, AND RELATED GENETIC AORTIC AND VASCULAR CONDITIONS. WE PROVIDE EXPANSIVE INFORMATION FOR PATIENTS, FAMILY MEMBERS, AND HEALTHCARE PROVIDERS THROUGH OUR WEBSITE AND HELPLINE, ACCESSIBLE VIA PHONE AND EMAIL, AS WELL AS WEBINARS ON MEDICAL TOPICS, MENTAL HEALTH ISSUES, SUPPORT GROUPS, AND QUALITY OF LIFE. PROGRAMS ARE SCHEDULED AT VARIOUS TIMES TO INCREASE ACCESS ACROSS TIME ZONES (US AND ABROAD). AN INCREASING NUMBER OF RESOURCES AND EDUCATIONAL OPPORTUNITIES ARE OFFERED IN SPANISH LANGUAGE AND OTHER LANGUAGES TO BETTER SERVE PEOPLE LIVING WITH GENETIC AORTIC CONDITIONS AND THEIR SUPPORT NETWORKS. THE FOUNDATION IS FOCUSED ON ENSURING EVERYONE HAS ACCESS TO QUALITY CARE AND FOSTERING BELONGING FOR ALL.
    Expenses $2,092,564 · grants $12,297 · revenue $32,885
  • SEE SCHEDULE O.EDUCATION - EXPENSES $1,380,263, GRANTS $4,647, REVENUE $1,505THE MARFAN FOUNDATION AND ITS DIVISIONS (THE LOEYS-DIETZ SYNDROME FOUNDATION, THE VEDS MOVEMENT, AND THE GENETIC AORTIC NETWORK) ARE THE PREEMINENT PROVIDERS OF INFORMATION AND PROGRAMS FOR PEOPLE LIVING WITH GENETIC AORTIC AND VASCULAR CONDITIONS, THEIR LOVED ONES, MEDICAL PROFESSIONALS, RESEARCHERS, AND THE GENERAL PUBLIC. WE REACH ONE MILLION PEOPLE ANNUALLY WITH OUR EDUCATIONAL RESOURCES, AND MORE THAN 7 MILLION IN THE SOCIAL MEDIA SPACE ALONE. THE MARFAN FOUNDATION OFFERS A WEALTH OF MEDICAL AND QUALITY-OF-LIFE INFORMATION IN MANY LANGUAGES THROUGH ITS HELP & RESOURCE CENTER, WHICH REACHES 5,000 PEOPLE EVERY YEAR -- DIRECTED BY IN-HOUSE NURSES AND A BILINGUAL MANAGER WHO ANSWER QUESTIONS BY PHONE AND EMAIL, AND THROUGH ITS COMPREHENSIVE WEBSITE, WHICH IS AVAILABLE IN MORE THAN 25 LANGUAGES. THE FOUNDATION OFFERS SPECIALIZED RESOURCES FOR CHILDREN, TEENS, PARENTS, TEACHERS, AND SCHOOL NURSES. IN ADDITION, THE FOUNDATION IS FOCUSED ON MENTAL HEALTH, OFFERING A RANGE OF OPPORTUNITIES, INCLUDING VIRTUAL SUPPORT GROUPS, VIDEOS, WEBINARS, AND OTHER CONTENT. THE MARFAN FOUNDATION FOCUSES ON EXPANDING HEALTH EQUITY AND ACCESS TO CARE FOR THE CONSTITUENTS WE SERVE GLOBALLY.
    Expenses $1,380,263 · grants $4,647 · revenue $1,505

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 June, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025June 30, 2026November 16, 2026Not due yet
2024June 30, 2025November 17, 2025990 on file
2023June 30, 2024November 15, 2024990 on file

IRS record

EIN
52-1265361
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Publicly supported organization (170(b)(1)(A)(vi))
Donations deductible (Pub 78)
Public charity, 50% deduction limit
Exempt since
1982
Accounting year ends
June
Files
Form 990 or 990-EZ
Assets (IRS master file)
$19,547,558
Income (IRS master file)
$12,512,714

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$7,780,692$7,566,004$19,547,558IRS
990June 2024$5,486,020$6,646,776$18,118,070XML
990June 2023$8,195,380$6,758,497$18,561,612IRS
990June 2022–––IRS
990June 2021–––IRS
990June 2019–––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 52-1265361).

Questions about THE MARFAN FOUNDATION INC

What is the EIN of THE MARFAN FOUNDATION INC?
The employer identification number (EIN) of THE MARFAN FOUNDATION INC is 52-1265361.
Is THE MARFAN FOUNDATION INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1982.
Are donations to THE MARFAN FOUNDATION INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THE MARFAN FOUNDATION INC 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 THE MARFAN FOUNDATION INC due?
The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did THE MARFAN FOUNDATION INC last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of THE MARFAN FOUNDATION INC?
The 990 for the year ended June 30, 2025 names MICHAEL L WEAMER.
Who are the officers and directors of THE MARFAN FOUNDATION INC?
The 990 for the year ended June 30, 2025 lists 32 people; 8 received compensation from the organization, the highest $474,635 (MICHAEL L WEAMER, PRES/CEO).
How much revenue does THE MARFAN FOUNDATION INC have?
On its 990 for the year ended June 30, 2025 it reported revenue of $7,780,692, expenses of $7,566,004 and total assets of $19,547,558 at year end.

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