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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 Central Iowa Hospital Corporation Robert Isaak, M.D.

Robert Isaak, M.D.

Highest compensated employee

Physician-Radation Oncology at Central Iowa Hospital Corporation

Fiscal year ended December 31, 2023. Published on January 25, 2026.

$1,173,606
2023

Total compensation

Robert Isaak, M.D. has been listed as an employee of Central Iowa Hospital Corporation in Form 990 filings since at least fiscal year 2016. Total compensation for Robert Isaak, M.D. has decreased by 7.5% from 2016 to 2023.

Annual compensation details

$1,173,606
+8%
Physician-Radation Oncology
2023
$1.1M org
40 hrs/wk
$37k other
--
$1,086,480
+6.8%
Physician-Radation Oncology
2022
$1.1M org
40 hrs/wk
$36k other
--

Total compensation by year

Compare the compensation of Robert Isaak, M.D. to:

2023

Other employees at Central Iowa Hospital Corporation

David Stark Ihs Chief Govt Aff
PHIL OFF (FR 7/23), BD Member/Ceo
$1,133,577
$542,862 from org$498,861 from related$91,854 other
Arshin Sheybani, M.D.
Physician-Radation Oncology
$1,052,503
$1,007,862 from orgNo related comp$44,641 other
John Triantafyllos, M.D.
Physician-Radation Oncology
$1,048,265
$1,005,243 from orgNo related comp$43,022 other
Eric Lothe Fache Frmr Ke
Senior Vice President and COO (TO 12/22)
$1,033,095
$1,009,710 from orgNo related comp$23,385 other
Samuel Schroeder, M.D.
Physician-Radation Oncology
$1,004,774
$960,826 from orgNo related comp$43,948 other
Nicholas Loudas, M.D.
Physician-Radation Oncology
$804,330
$777,284 from orgNo related comp$27,046 other
Tracy L Ekhardt, M.D.
Chief Medical Officer
$771,948
$721,626 from orgNo related comp$50,322 other
Thomas Mulrooney Fache
Vice President Surgical and Cardiovascular Svcs/Coo ILH and Method
$539,740
$451,854 from orgNo related comp$87,886 other
William Yost, M.D.
Vice President Medical Education and Research
$525,141
$486,160 from orgNo related comp$38,981 other
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Revisions to this profile

January 25, 2026:
2023 Central Iowa Hospital Corporation 990 published
January 25, 2026:
2022 Central Iowa Hospital Corporation 990 published
January 25, 2026:
2021 Central Iowa Hospital Corporation 990 published

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$1,016,910
-11.7%
Physician-Radation Oncology
2021
$985k org
40 hrs/wk
$33k other
--
$1,151,742
+0.1%
Physician-Radation Oncology
2020
$1.1M org
40 hrs/wk
$33k other
--
$1,150,429
+5.4%
Physician-Radation Oncology
2019
$1.1M org
40 hrs/wk
$38k other
--
$1,091,918
+3.8%
Physician-Radation Oncology
2018
$1.1M org
40 hrs/wk
$38k other
--
$1,051,705
-17.1%
Physician-Radation Oncology
2017
$1M org
40 hrs/wk
$39k other
--
$1,268,456
Physician-Radation Oncology
2016
$1.2M org
40 hrs/wk
$41k other
--

Other people named Robert Isaak, M.D.

2023
Board Member
Robert Isaak
The American Board of Anesthesiology Inc.
$13,937