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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 Loudoun Hospital Center Dba Inova Loudoun Hospital J Knox Singleton

J Knox Singleton

Officer

CEO, President, Ending 4/9/18 at Loudoun Hospital Center Dba Inova Loudoun Hospital

Fiscal year ended December 31, 2018. Published on January 24, 2026.

$4,662,695
2018

Total compensation

J Knox Singleton has been listed as an employee of Loudoun Hospital Center Dba Inova Loudoun Hospital in Form 990 filings since at least fiscal year 2016. Total compensation for J Knox Singleton has decreased by 25.3% from 2016 to 2018.

Annual compensation details

$4,662,695
-70.1%
CEO, President, Ending 4/9/18
2018
$4.6M related
47.5 hrs/wk
$46k other
--
$15,600,777
+149.9%
President
2017
$13.7M related
47.5 hrs/wk
$1.9M other
--

Total compensation by year

Compare the compensation of J Knox Singleton to:

2018

Other employees at Loudoun Hospital Center Dba Inova Loudoun Hospital

Mark Stauder
Former Trustee
$4,811,310
$0 from org$4,784,635 from related$26,675 other
Richard Magenheimer
Chief Financial Officer and Treasurer
$4,028,499
$0 from org$3,312,496 from related$716,003 other
Loring Flint
Executive Vice President Chief Medical Officer, Former
$2,357,233
$0 from org$1,777,748 from related$579,485 other
J Stephen Jones
CEO, President, Beginning 4/9/18
$1,798,518
$0 from org$1,350,889 from related$447,629 other
Patrick Walters
Interim CHRO
$1,405,496
$0 from org$1,000,750 from related$404,746 other
John Gaul
Senior Vice President General Counsel, Former
$1,234,624
$0 from org$980,859 from related$253,765 other
Deborah Addo
CEO ILH, Secretary
$1,081,684
$856,877 from orgNo related comp$224,807 other
Christopher Chiantella
Chief Medical Officer, ILH
$592,893
$519,158 from orgNo related comp$73,735 other
Marissa Jamarik
AVP Chief Nursing Officer
$345,211
$312,046 from orgNo related comp$33,165 other
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Revisions to this profile

January 24, 2026:
2018 Loudoun Hospital Center Dba Inova Loudoun Hospital 990 published
January 24, 2026:
2017 Loudoun Hospital Center Dba Inova Loudoun Hospital 990 published
January 24, 2026:
2016 Loudoun Hospital Center Dba Inova Loudoun Hospital 990 published

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$6,242,224
President
2016
$4.8M related
47.5 hrs/wk
$1.5M other
--

Other people named J Knox Singleton

2018
Employee
J Knox Singleton
Inova VNA Home Care
$4,662,695