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Nonprofit · EIN 37-1742267

THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC

Tax-exempt · GLENVIEW, IL 60025

Financials

$20K$55K2023$1.4M$933K2024$0$66K2025
Revenue Expenses · by fiscal year end
Financials of THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$0$66,301-$66,301$883,659$926,120-$42,461
December 31, 2024990$1,440,339$932,523$507,816$23,840$0$23,840
December 31, 2023990$20,332$54,611-$34,279$735,345$758,357-$23,012
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$0
Investment income
$0
Other revenue
$0

Expenses

Grants and similar amounts paid
$7,524
Compensation of officers, directors and key employees
$0
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Accounting fees
$1,800
Program services (functional)
$50,238
Management and general (functional)
$16,063

Balance sheet and other

Total assets, start of year
$23,840
Total assets, end of year
$883,659
Total liabilities, end of year
$926,120
Net assets, end of year
-$42,461
Net assets without donor restrictions
-$42,461
Gross receipts
$0
Employees
0
Year formed
2013
State of legal domicile
WI

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.

NameTitleHours / weekCompensation
Maria E Santaella MSN RN-BCSecretary
Trustee or director, Officer
0.5$0
Kristi Smock MDTreasurer
Trustee or director, Officer
0.5$0
Lana Castellucci MDPresident
Trustee or director, Officer
0.5$0
Anne Rose PharmDPresident Elect
Trustee or director, Officer
0.5$0
Julie Jaffray MDPast President
Trustee or director, Officer
0.5$0
Soumitra Tole MD MSc FRCPCBoard Member
Trustee or director
0.25$0
Madhvi Rajpurkar MDBoard Member
Trustee or director
0.25$0
Stacy Croteau MD MMSBoard Member
Trustee or director
0.25$0
Leslie LakeBoard Member
Trustee or director
0.25$0
Mara Nunez MDBoard Member
Trustee or director
0.25$0
Roona SinhaBoard Member
Trustee or director
0.25$0
Caroline KruseBoard Member
Trustee or director
0.25$0
Catherine Hayward MD PhDPast President
Trustee or director, Officer
0.5$0
990 for the year ended December 31, 2024: 13 people
NameTitleHours / weekCompensation
Maria E Santaella MSN RN-BCSecretary
Trustee or director, Officer
0.5$0
Kristi Smock MDTreasurer
Trustee or director, Officer
0.5$0
Lana Castellucci MDPresident
Trustee or director, Officer
0.5$0
Anne Rose PharmDPresident Elect
Trustee or director, Officer
0.5$0
Julie Jaffray MDPast President
Trustee or director, Officer
0.5$0
Soumitra Tole MD MSc FRCPCBoard Member
Trustee or director
0.25$0
Madhvi Rajpurkar MDBoard Member
Trustee or director
0.25$0
Stacy Croteau MD MMSBoard Member
Trustee or director
0.25$0
Leslie LakeBoard Member
Trustee or director
0.25$0
Mara Nunez MDBoard Member
Trustee or director
0.25$0
Roona SinhaBoard Member
Trustee or director
0.25$0
Caroline KruseBoard Member
Trustee or director
0.25$0
Catherine Hayward MD PhDPast President
Trustee or director, Officer
0.5$0
990 for the year ended December 31, 2023: 13 people
NameTitleHours / weekCompensation
Maria E Santaella MSN RN-BCSecretary
Trustee or director, Officer
0.5$0
Kristi Smock MDTreasurer
Trustee or director, Officer
0.5$0
Michelle Sholzberg MDCM FRCPCBoard Member
Trustee or director
0.25$0
Anne Rose PharmDPresident Elect
Trustee or director, Officer
0.5$0
Julie Jaffray MDPresident
Trustee or director, Officer
0.5$0
Soumitra Tole MD MSc FRCPCBoard Member
Trustee or director
0.25$0
Madhvi Rajpurkar MDBoard Member
Trustee or director
0.25$0
Stacy Croteau MD MMSBoard Member
Trustee or director
0.25$0
Leslie LakeBoard Member
Trustee or director
0.25$0
Mara Nunez MDBoard Member
Trustee or director
0.25$0
Vinai Bhagirath MDBoard Member
Trustee or director
0.25$0
Caroline KruseBoard Member
Trustee or director
0.25$0
Catherine Hayward MD PhDPast President
Trustee or director, Officer
0.5$0

Address and contacts

Address (IRS master file)
2111 CHESTNUT AVE STE 145, GLENVIEW, IL 60025-1609
In care of
% ADAM KOHM
Principal officer (990 for 2025)
Lana Castellucci MD, 2111 Chestnut Avenue 145, Glenview, IL 60025
Signed the 990
Kristi Smock MD, Treasurer
Phone
(847) 983-3519
Return prepared by
R L KEARNS CPA

Mission

Improving the quality of patient care in the fields of thrombosis and hemostasis, expanding new knowledge in the fields of thrombosis & hemostasis, facilitating translation of basic knowledge into practical applications which benefit clinical practice, and generally advancing the fields of thrombosis & hemostasis by promoting scientific progress and education; all leading to improvements in human health.

990 for the year ended December 31, 2025

Program accomplishments

  • Began planning for the 7th biennial summit and conference which will be held virtually and in person in Portland Oregon during March of 2026. The THSNA Summit is a collaboration of the 13 leading non-profit organizations in the fields of Thrombosis and Hemostasis. The Summit provides a focused forum for over 1,000 attendees with an interest in bleeding and clotting disorders to network, learn, and share across disciplines and disease states. The educational programming is organized in a series of plenary presentations, educational track session, oral abstract presentations and digital poster sessions.
    Expenses $28,476
  • Maintained a website for membership and continuing education programs.
    Expenses $14,238
  • Managed the THSNA mentoring award program. This award program provides financial support (up to $3,500 per award) for a mentee from the US, Canada or Mexico to travel and receive intensive mentorship for one week with a pre-selected mentor at a facility anywhere in the US, Canada, or Mexico. Award funds are anticipated to cover hotel/housing, meals (limited to 75 USD per day), air (lowest economy fare) or land transportation, and essential incidental expenses.
    Expenses $7,524 · grants $7,524

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026990 on file
2024December 31, 2024May 15, 2025990 on file
2023December 31, 2023May 15, 2024990 on file

IRS record

EIN
37-1742267
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-N (e-Postcard)
Assets (IRS master file)
$883,659

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$0$66,301$883,659XML
990December 2024$1,440,339$932,523$23,840XML
990December 2023$20,332$54,611$735,345XML
990December 2022$1,588,628$1,072,978$50,358IRS
990December 2021–––IRS
990December 2020–––IRS
990December 2019–––IRS
990December 2018–––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 37-1742267).

Questions about THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC

What is the EIN of THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC?
The employer identification number (EIN) of THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC is 37-1742267.
Is THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
Are donations to THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC 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 THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC 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 THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC?
The 990 for the year ended December 31, 2025 names Lana Castellucci MD.
Who are the officers and directors of THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC?
The 990 for the year ended December 31, 2025 lists 13 people; 0 received compensation from the organization.
How much revenue does THROMBOSIS AND HEMOTASIS SOCIETIES OF NORTH AMERICA INC have?
On its 990 for the year ended December 31, 2025 it reported revenue of $0, expenses of $66,301 and total assets of $883,659 at year end.

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