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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 Mercy Hospital of Buffalo Dr William Coplin

Dr William Coplin

Highest compensated employee

Physician at Mercy Hospital of Buffalo

Fiscal year ended December 31, 2019. Published on January 24, 2026.

$486,773
2019

Total compensation

Dr William Coplin has been listed as an employee of Mercy Hospital of Buffalo in Form 990 filings since fiscal year 2017. Total compensation for Dr William Coplin has increased by 2.4% from 2017 to 2019.

Annual compensation details

$486,773
-7.6%
Physician
2019
$453k org
55 hrs/wk
$34k other
--
$526,528
+10.8%
Physician
2018
$491k org
55 hrs/wk
$37k other
--

Total compensation by year

Compare the compensation of Dr William Coplin to:

2019

Other employees at Mercy Hospital of Buffalo

Mark Sullivan
President and Chief Executive Officer
$1,418,629
$0 from org$1,290,346 from related$128,283 other
Joseph McDonald
President and CEO - Former
$1,190,840
$0 from org$1,154,669 from related$36,171 other
James A Dunlop Jr
Executive Vice President and Chief Financial Officer
$1,071,884
$0 from org$800,257 from related$271,627 other
Dr Stephen Downing
Physician
$1,009,756
$973,821 from orgNo related comp$35,935 other
Michael Moley
Senior Vice President, Human Resources - Former
$740,268
$0 from org$702,651 from related$37,617 other
Dr Harsh Jain
Physician
$708,297
$673,420 from orgNo related comp$34,877 other
Joyce Markiewicz
Chief Business Development Officer
$679,703
$0 from org$590,271 from related$89,432 other
William Pryor
Executive Vice President, Chief Admin Officer
$607,977
$0 from org$527,804 from related$80,173 other
Dr Mark Jajkowski
Physician
$583,614
$550,039 from orgNo related comp$33,575 other
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Revisions to this profile

January 24, 2026:
2019 Mercy Hospital of Buffalo 990 published
January 24, 2026:
2018 Mercy Hospital of Buffalo 990 published
January 24, 2026:
2017 Mercy Hospital of Buffalo 990 published

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$475,341
Physician
2017
$451k org
55 hrs/wk
$25k other
--

Other people named Dr William Coplin

2019
Employee
William Coplin
Laurel Hill Foundation
$0
Employee
William Coplin
Demopolis Country Club Inc.
$0
Board Member
William Coplin
Waterloo Masonic Lodge #787 Af & Am
$0