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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 Elios Charitable Foundation John G Costouros

John G Costouros

Director at Elios Charitable Foundation

Fiscal year ended December 31, 2016. Published on January 24, 2026.

$0

2016

Total compensation

John G Costouros has been listed as an employee of Elios Charitable Foundation in Form 990 filings since at least fiscal year 2016.

Annual compensation details

$0

Director

2016

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Revisions to this profile

January 25, 2026:

2023 Elios Charitable Foundation 990 published

January 25, 2026:

2022 Elios Charitable Foundation 990 published

January 25, 2026:

2021 Elios Charitable Foundation 990 published

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2016

Other employees at Elios Charitable Foundation

Kerry Enright

Executive Director

$30,426

$30,426 ——

Anthony Saris

Director

$0

Michael Kasolas

Treasurer

$0

Patrick Mockler

Secretary

$0

George Marcus

Director

$0

Constantine Panagotacos

Director

$0

Gary M Vrionis

Vice President

$0

George Kasolas

Director

$0

Athena Marks

Director

$0

Other people named John G Costouros

2016

John G Costouros

The Elios Society

John Costouros, M.D.

Northern California Orthopaedic Society