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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 HealthTexas Provider Network Michael Isaac, M.D.

Michael Isaac, M.D.

Highest compensated employee

Physician at HealthTexas Provider Network

Fiscal year ended June 30, 2023. Published on January 25, 2026.

$1,632,078
2023

Total compensation

Michael Isaac, M.D. has been listed as an employee of HealthTexas Provider Network in Form 990 filings since fiscal year 2020. Total compensation for Michael Isaac, M.D. has increased by 14.4% from 2020 to 2023.

Annual compensation details

$1,632,078
+6.1%
Physician
2023
$1.6M org
40 hrs/wk
$22k other
--
$1,538,603
+2.6%
Physician
2022
$1.5M org
40 hrs/wk
$29k other
--

Total compensation by year

Compare the compensation of Michael Isaac, M.D. to:

2023

Other employees at HealthTexas Provider Network

Khalid Yousuf, M.D.
Physician
$2,349,147
$2,303,032 from orgNo related comp$46,115 other
Nathan Gilbert, M.D.
Physician
$1,962,813
$1,917,685 from orgNo related comp$45,128 other
Allaaddin Mollabashy, M.D.
Physician
$1,837,948
$1,793,411 from orgNo related comp$44,537 other
Michael Carley, M.D.
Physician
$1,789,568
$1,742,230 from orgNo related comp$47,338 other
Sarah Gahm
President/Svp Clinic Ops
$1,475,595
$1,198,106 from orgNo related comp$277,489 other
Kevin Theleman, M.D.
Director
$1,414,554
$1,369,478 from orgNo related comp$45,076 other
Richard Naftalis, M.D.
Former Officer
$1,399,078
$1,357,206 from orgNo related comp$41,872 other
Giuliano Testa, M.D.
Director
$1,272,958
$1,227,417 from orgNo related comp$45,541 other
F David Winter, M.D.
Former Officer
$942,312
$904,484 from orgNo related comp$37,828 other
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Revisions to this profile

January 25, 2026:
2023 HealthTexas Provider Network 990 published
January 25, 2026:
2022 HealthTexas Provider Network 990 published
January 25, 2026:
2021 HealthTexas Provider Network 990 published

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$1,498,938
+5%
Physician
2021
$1.5M org
40 hrs/wk
$28k other
--
$1,426,942
Physician
2020
$1.4M org
40 hrs/wk
$35k other
--