Compensation 990
OrganizationsEmployeesBoard MembersGrantsContractorsTop RankingsPricing

Stay updated on 990 organization compensation

© 2026 Civic Register LLC

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.

About•Report a discrepancy•Your privacy choices
Employees Yale New Haven Health Services Corporation Marc Kosak

Marc Kosak

Officer

Svp/Coo GH at Yale New Haven Health Services Corporation

Fiscal year ended September 30, 2022. Published on January 25, 2026.

$724,685
2022

Total compensation

Marc Kosak has been listed as an employee of Yale New Haven Health Services Corporation in Form 990 filings since fiscal year 2022.

Annual compensation details

$724,685
Svp/Coo GH
2022
$534k related
39 hrs/wk
$192k other
--

Total compensation by year

Compare the compensation of Marc Kosak to:

2022

Other employees at Yale New Haven Health Services Corporation

Marna Borgstrom
Chief Executive Officer and Trustee
$5,518,962
$1,689,019 from org$2,533,528 from related$1,296,415 other
Richard D'Aquila
Former Officer
$2,742,045
$0 from org$2,742,045 from relatedNo other comp
Stephen Allegretto
Former Officer (Vested Deferred)
$2,480,400
$0 from org$2,480,400 from relatedNo other comp
Christopher O'Connor
Chief Executive Officer and Trustee
$2,454,211
$699,707 from org$1,049,561 from related$704,943 other
Thomas Balcezak
Executive Vice President and CCO
$2,059,970
$108,407 from org$1,337,024 from related$614,539 other
Vincent Tammaro
Treasurer
$2,044,219
$575,839 from org$863,760 from related$604,620 other
William Aseltyne
Associate Secretary
$1,975,102
$338,583 from org$1,443,431 from related$193,088 other
Keith Churchwell
Executive Vice President and President
$1,852,859
$128,142 from org$1,153,286 from related$571,431 other
Lisa Stump
Senior Vice President and Chief Information Officer
$1,469,140
$410,680 from org$616,022 from related$442,438 other
Loading rankings…
Loading related profiles…

Revisions to this profile

January 25, 2026:
2022 Yale New Haven Health Services Corporation 990 published

Get an email update when compensation for Marc Kosak is updated

Related Jobs

View more jobs
Powered by Talroo
Report a discrepancy →

Other people named Marc Kosak

2022
Employee
Marc Kosak
Greenwich Hospital
$735,119
Employee
Marc Kosak
The Perryridge Corporation
$735,119
Employee
Marc Kosak
Greenwich Health Care Services Inc.
$356,314
Employee
Marc Kosak
The Osborn Network Incorporated
$0
Board Member
Marc Kosak
Habitat for Humanity of Coastal Fairfield County Inc.
$0
Board Member
Marc Kosak
Miriam Osborn Memorial Home Association
$0