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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Copley Memorial Hospital Inc. John Diederich

John Diederich

OfficerTrustee/director

President and Chief Executive Officer at Copley Memorial Hospital Inc.

Fiscal year ended June 30, 2021. Published on January 25, 2026.

$938,901
2021

Total compensation

John Diederich has been listed as an employee of Copley Memorial Hospital Inc. in Form 990 filings since at least fiscal year 2016. Total compensation for John Diederich has increased by 35.4% from 2016 to 2021.

Annual compensation details

$938,901
+71.8%
President and Chief Executive Officer
2021
$586k org
40 hrs/wk
$354k other
--
$546,429
-26.7%
President and CEO (BEG 11/19)/Director
2020
$475k org
40 hrs/wk
$72k other
--

Total compensation by year

Compare the compensation of John Diederich to:

2021

Other employees at Copley Memorial Hospital Inc.

Mark Sharp-Schinsky, M.D.
Physician
$1,549,396
$1,512,385 from orgNo related comp$37,011 other
Jonathan L Tueting, M.D.
Physician
$1,167,361
$1,129,278 from orgNo related comp$38,083 other
Dimitri Ruban, M.D.
Physician
$954,294
$919,799 from orgNo related comp$34,495 other
Kevin Kelly, M.D.
Physician
$931,395
$904,701 from orgNo related comp$26,694 other
Arif Saleem, M.D.
Physician
$815,250
$782,492 from orgNo related comp$32,758 other
Steve Lowenthal, M.D.
Senior Vice President Medical Affairs and CMO
$602,060
$582,974 from orgNo related comp$19,086 other
Syed Zaidi M.D. Beg 0121
Chief of Staff/Director
$556,870
$525,058 from orgNo related comp$31,812 other
Jae B Joo M.D. Beg 0121
VICE Chief of Staff/Director
$554,140
$517,435 from orgNo related comp$36,705 other
Brenda van Wyhe
Senior Vice President Finance and Cfo/Treasurer
$488,464
$411,949 from orgNo related comp$76,515 other
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Revisions to this profile

January 25, 2026:
2021 Copley Memorial Hospital Inc. 990 published
January 24, 2026:
2020 Copley Memorial Hospital Inc. 990 published
January 24, 2026:
2019 Copley Memorial Hospital Inc. 990 published

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