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Nonprofit · EIN 36-2167008

MCHC-CHICAGO HOSPITAL COUNCIL

Tax-exempt · NAPERVILLE, IL 60563

Financials

$7.2M$6.5M2023$7.8M$6.7M2024$8M$7M2025
Revenue Expenses · by fiscal year end
Financials of MCHC-CHICAGO HOSPITAL COUNCIL by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
December 31, 2025990$7,972,273$7,022,094$950,179$6,533,563$4,199,936$2,333,627
December 31, 2024990$7,829,242$6,747,579$1,081,663$5,791,029$4,407,581$1,383,448
December 31, 2023990$7,187,575$6,504,988$682,587$3,919,845$3,618,060$301,785
Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants
$7,773,248
of which government grants
$5,565,307
Program service revenue
$69,471
Investment income
$129,554
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Other salaries and wages
$3,668,392
Salaries, compensation and benefits (total)
$4,582,966
Professional fundraising fees
$0
Legal fees
$232
Accounting fees
$9,813
Occupancy
$127,578
Travel
$3,898
Depreciation
$24,890
Program services (functional)
$6,073,819
Management and general (functional)
$948,275

Balance sheet and other

Total assets, start of year
$5,791,029
Total assets, end of year
$6,533,563
Total liabilities, end of year
$4,199,936
Net assets, end of year
$2,333,627
Land, buildings and equipment
$46,325
Net assets without donor restrictions
$2,333,627
Gross unrelated business income
$41,450
Gross receipts
$7,972,273
Employees
29
Volunteers
0
Year formed
1986
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.

NameTitleHours / weekCompensationFrom related orgsOther / benefits
ARTHUR J WILHELMICHAIRMAN/PRESIDENT
Trustee or director, Officer
3$0$1,394,342$276,189
KAREN HARRISSECRETARY
Officer
1$0$470,080$49,168
TERRI L ALLENTREASURER/DIRECTOR
Trustee or director, Officer
1$0$425,668$47,420
MICHAEL WAHLMEDICAL DIRECTOR
Highest-paid employee
38$0$313,110$47,531
JEAN KIRKELASSISTANT TREASURER
Officer
1$0$290,532$40,178
HELGA BRAKEDIRECTOR
Trustee or director
1$0$280,359$37,411
CAROL DESLAURIERSAVP, ILLINOIS POISON CONTROL
Highest-paid employee
40$0$235,103$29,600
JEROME DIMAANOCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$165,935$59,716
ERIN PALLASCHCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$159,667$20,123
ARTHUR KUBICCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$152,579$19,951
990 for the year ended December 31, 2024: 10 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
ARTHUR J WILHELMICHAIRMAN/PRESIDENT
Trustee or director, Officer
3$0$1,348,508$268,550
KAREN HARRISSECRETARY
Officer
1$0$453,477$45,228
TERRI L ALLENTREASURER/DIRECTOR
Trustee or director, Officer
1$0$404,952$46,801
MICHAEL WAHLMEDICAL DIRECTOR
Highest-paid employee
38$0$300,590$66,255
JEAN KIRKELASSISTANT TREASURER
Officer
1$0$279,509$38,776
HELGA BRAKEDIRECTOR
Trustee or director
1$0$271,242$35,013
CAROL DESLAURIERSAVP, ILLINOIS POISON CONTROL
Highest-paid employee
40$0$224,434$23,090
ANTHONY BURDACERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$184,781$30,694
JEROME DIMAANOCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$152,301$56,768
AMY DIETCHECERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$151,650$13,635
990 for the year ended December 31, 2023: 11 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
ARTHUR J WILHELMICHAIRMAN/PRESIDENT
Trustee or director, Officer
3$0$1,282,510$220,791
EDWARD HOLZHAUERFORMER VICE CHAIR
Former
0$0$484,180$50,068
KAREN HARRISSECRETARY
Officer
1$0$448,648$42,972
TERRI L ALLENTREASURER/DIRECTOR
Trustee or director, Officer
1$0$400,422$44,270
MICHAEL WAHLMEDICAL DIRECTOR
Highest-paid employee
1$0$297,682$63,423
JEAN KIRKELASSISTANT TREASURER
Officer
1$0$273,676$37,347
HELGA BRAKEDIRECTOR
Trustee or director
1$0$267,897$37,811
CAROL DESLAURIERSAVP, ILLINOIS POISON CONTROL
Highest-paid employee
40$0$221,752$22,627
JEROME DIMAANOCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$139,623$53,322
ANTHONY BURDACERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$163,749$28,572
ERIN PALLASCHCERTIFIED SPECIALIST IN POISON
Highest-paid employee
40$0$134,803$13,313

Address and contacts

Address (IRS master file)
1120 E DIEHL RD STE 200, NAPERVILLE, IL 60563-4899
In care of
% TERRI L ALLEN
Principal officer (990 for 2025)
ARTHUR J WILHELMI, 1120 EAST DIEHL ROAD 200, NAPERVILLE, IL 60563
Signed the 990
TERRI L ALLEN, TREASURER
Phone
(630) 276-5400
Return prepared by
RSM US LLP

Mission

THE MISSION OF MCHC CHICAGO HOSPITAL COUNCIL IS TO FOSTER, PROMOTE, SUPPORT, DEVELOP AND ENCOURAGE CHARITABLE, EDUCATIONAL, SCHOLASTIC AND SCIENTIFIC PURPOSES; PROMOTE COOPERATIVE EFFORT AND ACTION BETWEEN HOSPITALS AND OTHER HEALTH CARE ENTITIES AND THE GENERAL PUBLIC AND THUS ENHANCE THE EFFECTIVENESS OF THE HOSPITAL AND OTHER HEALTH CARE SERVICE TO THE COMMUNITY; STIMULATE UNDERSTANDING AND COOPERATION BETWEEN HOSPITALS AND OTHER HEALTH CARE ENTITIES AND THE MEDICAL PROFESSION; ENCOURAGE SCIENTIFIC PROGRESS AND ADMINISTRATIVE ADVANCES IN HOSPITALS AND OTHER HEALTH CARE ENTITIES AND MORE EFFECTIVE UTILIZATION OF THEIR FACILITIES; AND HELP MEET PUBLIC NEEDS FOR HOSPITAL AND HEALTH CARE FACILITIES AND SERVICES.

990 for the year ended December 31, 2025

Program accomplishments

  • THE ILLINOIS POISON CENTER IS THE LARGEST POISON CENTER IN THE UNITED STATES AND THE ONLY CERTIFIED POISON CENTER SERVING THE NEARLY 13 MILLION RESIDENTS OF ILLINOIS. BY CALLING THE POISON CENTER'S FREE CONFIDENTIAL HELPLINE, A SPECIALLY TRAINED PHYSICIAN, PHARMACIST OR NURSE IS REACHED 24 HOURS A DAY, 7 DAYS A WEEK. THE POISON CENTER IS ENGAGED WITH THE CENTER FOR DISEASE CONTROL (CDC) FOR THE PURPOSES OF PUBLIC HEALTH SURVEILLANCE.
    Expenses $6,073,819 · revenue $69,471

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
36-2167008
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
2015
Accounting year ends
December
Files
Form 990 or 990-EZ
Category (NTEE)
Health care (E22)
Assets (IRS master file)
$6,533,563
Income (IRS master file)
$7,972,273

Filing history

FormYear endedRevenueExpensesAssetsReturn
990December 2025$7,972,273$7,022,094$6,533,563XML
990-TDecember 2025–––IRS
990December 2024$7,829,242$6,747,579$5,791,029XML
990-TDecember 2024–––IRS
990December 2023$7,187,575$6,504,988$3,919,845XML
990-TDecember 2023–––IRS
990December 2022$6,728,149$6,198,624$3,448,008IRS
990-TDecember 2022–––IRS
990December 2021–––IRS
990-TDecember 2021–––IRS
990December 2020–––IRS
990-TDecember 2020–––IRS
990December 2019–––IRS
990December 2018–––IRS
990December 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 36-2167008).

Questions about MCHC-CHICAGO HOSPITAL COUNCIL

What is the EIN of MCHC-CHICAGO HOSPITAL COUNCIL?
The employer identification number (EIN) of MCHC-CHICAGO HOSPITAL COUNCIL is 36-2167008.
Is MCHC-CHICAGO HOSPITAL COUNCIL tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2015.
Are donations to MCHC-CHICAGO HOSPITAL COUNCIL tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does MCHC-CHICAGO HOSPITAL COUNCIL 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 MCHC-CHICAGO HOSPITAL COUNCIL 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 MCHC-CHICAGO HOSPITAL COUNCIL 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 MCHC-CHICAGO HOSPITAL COUNCIL?
The 990 for the year ended December 31, 2025 names ARTHUR J WILHELMI.
Who are the officers and directors of MCHC-CHICAGO HOSPITAL COUNCIL?
The 990 for the year ended December 31, 2025 lists 10 people; 0 received compensation from the organization.
How much revenue does MCHC-CHICAGO HOSPITAL COUNCIL have?
On its 990 for the year ended December 31, 2025 it reported revenue of $7,972,273, expenses of $7,022,094 and total assets of $6,533,563 at year end.

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