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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 Mark Twain Medical Center Katherine A Medeiros

Katherine A Medeiros

Former

Former Officer at Mark Twain Medical Center

Fiscal year ended June 30, 2020. Published on January 24, 2026.

$189,905
2020

Total compensation

Katherine A Medeiros has been listed as an employee of Mark Twain Medical Center in Form 990 filings since at least fiscal year 2016. Total compensation for Katherine A Medeiros has decreased by 68.3% from 2016 to 2020.

Annual compensation details

$189,905
-73.6%
Former Officer
2020
$172k related
--
$19k other
--
$718,173
+8.6%
Former Officer
2019
$616k related
40 hrs/wk
$103k other
--

Total compensation by year

Compare the compensation of Katherine A Medeiros to:

2020

Other employees at Mark Twain Medical Center

Charles Kassis
Chair
$797,219
$0 from org$687,831 from related$109,388 other
Randall Ross
Vice Chair
$675,196
$0 from org$574,175 from related$101,021 other
Roger P Rogalski, M.D.
Physician
$666,403
$570,915 from orgNo related comp$95,488 other
Christopher M Champlin
Board Member
$510,859
$0 from org$439,281 from related$71,578 other
Ermenegildo Eld Frezza
Physician
$505,050
$429,962 from orgNo related comp$75,088 other
Robert Costa Allen
Former Key Employee
$481,595
$0 from org$397,437 from related$84,158 other
Mohamad A Parsa, M.D.
Physician
$464,256
$377,409 from orgNo related comp$86,847 other
Lonnie Smith, M.D.
CMO (Thru 6/7/19)
$426,618
$390,474 from orgNo related comp$36,144 other
Andrew McCoy, M.D.
Physician
$400,976
$332,384 from orgNo related comp$68,592 other
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Revisions to this profile

January 24, 2026:
2020 Mark Twain Medical Center 990 published
January 24, 2026:
2019 Mark Twain Medical Center 990 published
January 24, 2026:
2018 Mark Twain Medical Center 990 published

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$661,248
+21.4%
Former Officer
2018
$567k related
40 hrs/wk
$95k other
--
$544,744
-9.2%
Secretary (Thru 6/27/17)
2017
$465k related
40 hrs/wk
$80k other
--
$599,784
Secretary
2016
$519k related
40 hrs/wk
$81k other
--

Other people named Katherine A Medeiros

2020
Employee
Katherine A Medeiros
Sierra Nevada Memorial Miners Hospital
$189,905
Board Member
Katherine Medeiros
Alpha Chi Omega Fraternity Inc. Subordinate Group Return
$0
Employee
Katherine Ann Medeiros
Friends of the Berkley Council on Aging
$0