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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 Waupun Memorial Hospital Diane Posthuma

Diane Posthuma

Highest compensated employee

Director-Rn, Emergency at Waupun Memorial Hospital

Fiscal year ended December 31, 2020. Published on January 24, 2026.

$137,376

2020

Total compensation

Diane Posthuma has been listed as an employee of Waupun Memorial Hospital in Form 990 filings since fiscal year 2020.

Annual compensation details

$137,376

Director-Rn, Emergency

2020

$131k org

40 hrs/wk

$7k other

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Total compensation by year

Compare the compensation of Diane Posthuma to:

2020

Other employees at Waupun Memorial Hospital

Pt Yr Treasurer, Pt Yr Chief Financial Officer at SSM Health

$0 from org$1,717,045 from related$73,075 other

$0 from org$507,002 from relatedNo other comp

Treasurer, Chief Financial Officer at SSM Health

$0 from org$403,263 from related$84,602 other

Director, President/Cno-Waupun Memorial Hospital

$0 from org$314,069 from related$83,889 other

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January 24, 2026:

2020 Waupun Memorial Hospital 990 published

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