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Nonprofit · EIN 45-3449737

NORTHWESTERN MEMORIAL HEALTHCARE

Also known as CENTEGRA HOSPITAL HUNTLEY HOLDINGS

Tax-exempt · CHICAGO, IL 60611

Address and contacts

Address (IRS master file)
541 N FAIRBANKS CT RM 1630, CHICAGO, IL 60611-3319
In care of
% DAVID BILLER
Mailing address (990-N for 2014)
385 Millennium Drive, Crystal Lake IL 60012
Principal officer (990-N for 2014)
Michael S Eesley, 385 Millennium Drive, Ingleside IL 60012

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

Tax yearYear endedDueIRS public records
2025August 31, 2026January 15, 2027Not due yet
2024August 31, 2025January 15, 2026Not on file
2023August 31, 2024January 15, 2025Not on file

IRS record

EIN
45-3449737
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Exempt since
2011
Accounting year ends
August
Files
Form 990-N (e-Postcard)
Category (NTEE)
Health care (E22)
Assets (IRS master file)
$1

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-EZJune 2018–––IRS
990-N for 2014
Officer: Michael S Eesley
June 30, 2015≤ $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 45-3449737).

Questions about NORTHWESTERN MEMORIAL HEALTHCARE

What is the EIN of NORTHWESTERN MEMORIAL HEALTHCARE?
The employer identification number (EIN) of NORTHWESTERN MEMORIAL HEALTHCARE is 45-3449737.
Is NORTHWESTERN MEMORIAL HEALTHCARE tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2011.
Which annual return does NORTHWESTERN MEMORIAL HEALTHCARE file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of NORTHWESTERN MEMORIAL HEALTHCARE due?
The return for tax year 2025 (the year ending August 31, 2026) is due January 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did NORTHWESTERN MEMORIAL HEALTHCARE last file with the IRS?
The latest return in the IRS public files is the 990-EZ for the year ended June 2018.
Who is the principal officer of NORTHWESTERN MEMORIAL HEALTHCARE?
The 990-N for 2014 names Michael S Eesley.

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