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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 Great Lakes Cancer Institute Barton Buxton

Barton Buxton

Trustee/director

Director at Great Lakes Cancer Institute

Fiscal year ended September 30, 2016. Published on January 24, 2026.

$1,016,689
2016

Total compensation

Barton Buxton has been listed as an employee of Great Lakes Cancer Institute in Form 990 filings since at least fiscal year 2016.

Annual compensation details

$1,016,689
Director
2016
$926k related
51.3 hrs/wk
$91k other
--

Total compensation by year

Compare the compensation of Barton Buxton to:

2016

Other employees at Great Lakes Cancer Institute

Mark O'Halla
Director
$1,665,056
$0 from org$1,634,969 from related$30,087 other
David Mazurkiewicz
Senior Vice President and Chief Financial Officer
$1,406,131
$0 from org$1,379,015 from related$27,116 other
Dr Michael McKenna
Director
$1,166,791
$0 from org$1,139,816 from related$26,975 other
Don Kooy
Director
$1,157,325
$0 from org$1,088,506 from related$68,819 other
Kevin Tompkins
Director
$832,492
$0 from org$775,286 from related$57,206 other
Clarence Sevillian
Director
$723,054
$0 from org$562,479 from related$160,575 other
William Lawrence
Director
$608,801
$0 from org$578,714 from related$30,087 other
Dr Justin Klamerus
President and Chief Executive Officer and Director
$514,507
$0 from org$490,271 from related$24,236 other
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Revisions to this profile

January 24, 2026:
2016 Great Lakes Cancer Institute 990 published

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