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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 American College of Surgeons Clifford Ko

Clifford Ko

Key employee

Research Director at American College of Surgeons

Fiscal year ended June 30, 2023. Published on January 25, 2026.

$633,228
2023

Total compensation

Clifford Ko has been listed as an employee of American College of Surgeons in Form 990 filings since at least fiscal year 2016. Total compensation for Clifford Ko has decreased by 10% from 2016 to 2023.

Annual compensation details

$633,228
-30.4%
Research Director
2023
$868k org
40 hrs/wk
$909,535
-8.3%
Research Director
2022
$814k org
40 hrs/wk
$97k other
--
$991,691

Total compensation by year

Compare the compensation of Clifford Ko to:

2023

Other employees at American College of Surgeons

Lewis Flint
Editor of Selected Reading
$1,150,882
$549,526 from orgNo related comp$601,356 other
Patricia L Turner
Executive Director
$1,001,129
$1,001,129 from orgNo related compNo other comp
Ajit Sachdeva
Education Director
$854,513
$854,513 from orgNo related compNo other comp
David B Hoyt
Senior Executive Advisor (Thru 6/22)
$824,094
$755,654 from orgNo related comp$68,440 other
Patrick V Bailey
Medical Director
$697,206
$697,206 from orgNo related compNo other comp
Frank G Opelka
Medical Director
$678,851
$678,851 from orgNo related compNo other comp
Gay L Vincent
Chief Financial Officer
$652,266
$652,266 from orgNo related compNo other comp
Michelle McGovern
Human Resources Director
$545,102
$545,102 from orgNo related compNo other comp
Timothy J Eberlein
Director / Chair (AS of 10/22)
$150,000
$150,000 from orgNo related compNo other comp
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Revisions to this profile

January 25, 2026:
2023 American College of Surgeons 990 published
January 25, 2026:
2022 American College of Surgeons 990 published
January 25, 2026:
2021 American College of Surgeons 990 published

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-0.5%
Research Director
2021
$782k org
40 hrs/wk
$211k other
--
$996,404
+34.8%
Research Director
2020
$767k org
40 hrs/wk
$231k other
--
$739,357
-11.3%
Research Director
2019
$739k org
40 hrs/wk
$1k other
--
$833,852
+11.5%
Research Director
2018
$714k org
40 hrs/wk
$120k other
--
$748,142
+6.3%
Research Director
2017
$663k org
40 hrs/wk
$86k other
--
$703,627
Research Director
2016
$664k org
40 hrs/wk
$41k other
--