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Nonprofit · EIN 83-2360058

INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC

Tax-exempt (reinstated) · COLUMBUS, OH 43215

Address and contacts

Address (IRS master file)
CO GBQ PARTNERS LLC 230 WEST ST, COLUMBUS, OH 43215-0000
In care of
% GBQ PARTNERS LLC
Mailing address (990-N for 2025)
CO GBQ Partners LLC 230 West St, Columbus OH 43215
Principal officer (990-N for 2025)
Marvin J Slepian, 5001 North Summit Ridge Rd, Tuscon AZ 85750

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-N on file
2024December 31, 2024May 15, 2025990-N on file
2023December 31, 2023May 15, 2024Check at the IRS

File the 2026 990-N for INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN
83-2360058
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
2023
Accounting year ends
December
Files
Form 990-N (e-Postcard)
Category (NTEE)
Medical research (H43)

Revocation and reinstatement

Exemption revoked
May 15, 2021
Posted by the IRS
August 9, 2021
Reinstated
Effective May 15, 2021

From the IRS automatic revocation list: organizations that did not file a required return or e-Postcard for three consecutive years.

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Marvin J Slepian
December 31, 2025≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: MARVIN J SLEPIAN
December 31, 2024≤ $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 83-2360058).

Questions about INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC

What is the EIN of INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC?
The employer identification number (EIN) of INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC is 83-2360058.
Is INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC tax-exempt?
Yes. The IRS revoked its exemption on May 15, 2021 and reinstated it effective May 15, 2021.
Are donations to INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT 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 INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of INTERNATIONAL SOCIETY FOR MECHANICAL CIRCULATORY SUPPORT INC?
The 990-N for 2025 names Marvin J Slepian.

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