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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 The William W Backus Hospital Sergio Casilla, M.D.

Sergio Casilla, M.D.

Highest compensated employee

Physician at The William W Backus Hospital

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

$715,239

2016

Total compensation

Sergio Casilla, M.D. has been listed as an employee of The William W Backus Hospital in Form 990 filings since at least fiscal year 2016.

Annual compensation details

$715,239

Physician

2016

$660k org

40 hrs/wk

$56k other

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Total compensation by year

Compare the compensation of Sergio Casilla, M.D. to:

2016

Other employees at The William W Backus Hospital

David Whitehead

Former Director/President/Evp

$0 from org$969,377 from related$71,418 other

$0 from org$724,236 from related$99,900 other

Margaret Marchak

$0 from org$660,302 from related$141,415 other

Senior Vice President and Chief Financial Officer

$0 from org$576,066 from related$64,342 other

President and Director

$0 from org$476,135 from related$95,399 other

Zhenxiang Liu, M.D.

$499,301 from orgNo related comp$51,677 other

Robert Sidman, M.D.

Vice President Medical Affairs EAST Region

$476,272 from orgNo related comp$41,235 other

Richard Goulding, M.D.

$400,039 from orgNo related comp$54,383 other

Nader Bahadory, M.D.

$393,615 from orgNo related comp$59,472 other

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January 24, 2026:

2016 The William W Backus Hospital 990 published

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