Skip to main content
IRS-authorized e-file provider · not the IRS

Nonprofit · EIN 31-1304908

OHIO HEMATOLOGY ONCOLOGY SOCIETY

Tax-exempt · CLEVELAND, OH 44111

Financials

$276K$309K2023$394K$327K2024$516K$350K2025
Revenue Expenses · by fiscal year end
Financials of OHIO HEMATOLOGY ONCOLOGY SOCIETY by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$515,912$349,534$166,378$558,752$0$558,752
December 31, 2024990$394,056$326,839$67,217$392,374$0$392,374
December 31, 2023990$276,244$308,557-$32,313$325,157$0$325,157
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$501,997
Membership dues
$500,720
Program service revenue
$0
Investment income
$13,915
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Compensation of officers, directors and key employees
$183,902
Salaries, compensation and benefits (total)
$216,680
Professional fundraising fees
$0
Accounting fees
$23,030
Occupancy
$6,210
Travel
$3,073

Balance sheet and other

Total assets, start of year
$392,374
Total assets, end of year
$558,752
Total liabilities, end of year
$0
Net assets, end of year
$558,752
Gross unrelated business income
$13,915
Gross receipts
$515,912
Employees
1
Volunteers
0
Year formed
1994
State of legal domicile
OH

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
MICHELLE WEISSEXECUTIVE DIRECTOR
Trustee or director, Officer
40$183,902
SLOBODAN STANISICPRESIDENT
Trustee or director
2$0
CHARLES BANEVICE PRESIDENT
Trustee or director
2$0
SHABANA DEWANITRUSTEE
Trustee or director
2$0
RAZA KHANTRUSTEE
Trustee or director
2$0
990 for the year ended December 31, 2024: 5 people
NameTitleHours / weekCompensation
MICHELLE WEISSEXECUTIVE DIRECTOR
Trustee or director, Officer
40$170,280
SLOBODAN STANISICPRESIDENT
Trustee or director
2$0
CHARLES BANEVICE PRESIDENT
Trustee or director
2$0
SHABANA DEWANITRUSTEE
Trustee or director
2$0
RAZA KHANTRUSTEE
Trustee or director
2$0
990 for the year ended December 31, 2023: 5 people
NameTitleHours / weekCompensation
MICHELLE WEISSEXECUTIVE DIRECTOR
Trustee or director, Officer
40$166,110
DAVID DILAHUNTEXECUTIVE DIRECTOR
Trustee or director
40$3,317
NASHAT GABRAILTRUSTEE
Trustee or director
1$0
SLOBODAN STANISICPRESIDENT
Trustee or director
2$0
CHARLES BANETREASURER
Trustee or director
2$0

Address and contacts

Address (IRS master file)
2150 W 117 ST 1261, CLEVELAND, OH 44111-1641
In care of
% DAVE DILLAHUNT
Principal officer (990 for 2025)
MICHELLE WEISS, 5075 LATIMER STREET, WEST BLOOMFIELD, MI 48324
Signed the 990
MICHELLE WEISS, EXECUTIVE DIRECTOR
Phone
(614) 721-2551
Return prepared by
BSB PARTNERS CPAS AND BUSINESS ADVISORS

Mission

PROMOTION OF PROFESSIONAL STANDARDS IN THE FIELD OF HEMATOLOGY AND ONCOLOGY.

990 for the year ended December 31, 2025

Program accomplishments

  • EDUCATION AND PROFESSIONAL DEVELOPMENT -OHIO HEMATOLOGY ONCOLOGY SOCIETY PROVIDED EDUCATION TO OVER 220 HEMATOLOGY AND ONCOLOGY PROVIDERS ACROSS OHIO. ACTIVITIES INCLUDED SIX-CITY IN-PERSON ROUNDTABLES, A FULL-DAY ANNUAL MEETING WITH EXPERT SPEAKERS, VIRTUAL REIMBURSEMENT ROUNDTABLES, AND DEVELOPMENT OF A TAILORED CODING AND BILLING CERTIFICATION COURSE. THESE EFFORTS HELPED MEMBERS STAY INFORMED AND IMPROVE OPERATIONAL EFFECTIVENESS.
  • ADVOCACY AND POLICY ENGAGEMENT - OHIO HEMATOLOGY ONCOLOGY SOCIETY ENGAGED IN STATE AND FEDERAL ADVOCACY TO ADVANCE POLICIES IMPACTING ONCOLOGY CARE. THE SOCIETY WORKED WITH THE OHIO DEPARTMENT OF INSURANCE AND U.S. DEPARTMENT OF LABOR ON REIMBURSEMENT CHANGES, PARTICIPATED IN CAPITOL HILL DAYS, AND COLLABORATED WITH NATIONAL ORGANIZATIONS. ADVOCACY FOCUSED ON PRIOR AUTHORIZATION REFORM, BIOMARKER TESTING MANDATES, OFF-LABEL DRUG COVERAGE, PBM REGULATION, WHITE BAGGING, AND CO-PAY ACCUMULATOR BANS.
  • MEMBERSHIP EXPANSION & INDUSTRY COLLABORATION - OHIO HEMATOLOGY ONCOLOGY SOCIETY EXPANDED ITS MEMBERSHIP TO OVER 220 ONCOLOGY PROVIDERS AND MORE THAN 500 STAFF CONTACTS. THE SOCIETY ENGAGED NEW INSTITUTIONS STATEWIDE AND PARTNERED WITHCORPORATE SPONSORS. OHIO HEMATOLOGY ONCOLOGY SOCIETY CREATED A CORPORATE PARTNER EDUCATION COMPENDIUM AND A REIMBURSEMENT MANAGERS DIRECTORY TO HELP SPONSORS CONNECT WITH THE RIGHT CONTACTS AT PRACTICES, ENHANCING COMMUNICATION AND EDUCATIONAL ACCESS.

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 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
31-1304908
Tax-exempt status
501(c)(6): Business league or chamber of commerce
Donations deductible
No
Exempt since
1994
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$558,752
Income (IRS master file)
$515,912

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$515,912$349,534$558,752XML
990December 2024$394,056$326,839$392,374XML
990December 2023$276,244$308,557$325,157XML
990December 2022$269,866$321,235$357,470IRS
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 31-1304908).

Questions about OHIO HEMATOLOGY ONCOLOGY SOCIETY

What is the EIN of OHIO HEMATOLOGY ONCOLOGY SOCIETY?
The employer identification number (EIN) of OHIO HEMATOLOGY ONCOLOGY SOCIETY is 31-1304908.
Is OHIO HEMATOLOGY ONCOLOGY SOCIETY tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(6) since 1994.
Are donations to OHIO HEMATOLOGY ONCOLOGY SOCIETY tax-deductible?
No. The IRS master file says contributions to it are not deductible.
Which annual return does OHIO HEMATOLOGY ONCOLOGY SOCIETY 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 OHIO HEMATOLOGY ONCOLOGY SOCIETY 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 OHIO HEMATOLOGY ONCOLOGY SOCIETY 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 OHIO HEMATOLOGY ONCOLOGY SOCIETY?
The 990 for the year ended December 31, 2025 names MICHELLE WEISS.
Who are the officers and directors of OHIO HEMATOLOGY ONCOLOGY SOCIETY?
The 990 for the year ended December 31, 2025 lists 5 people; 1 received compensation from the organization, the highest $183,902 (MICHELLE WEISS, EXECUTIVE DIRECTOR).
How much revenue does OHIO HEMATOLOGY ONCOLOGY SOCIETY have?
On its 990 for the year ended December 31, 2025 it reported revenue of $515,912, expenses of $349,534 and total assets of $558,752 at year end.

Other nonprofits in CLEVELAND

All nonprofits in CLEVELAND · Ohio