Compensation 990
OrganizationsEmployeesBoard MembersGrantsContractorsTop RankingsPricing

Stay updated on 990 organization compensation

© 2026 Civic Register LLC

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.

About•Report a discrepancy•Your privacy choices
Employees Oncology Nursing Society Karen Hammelef

Karen Hammelef

Highest compensated employee

Director of Products at Oncology Nursing Society

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$170,744
2024

Total compensation

Karen Hammelef has been listed as an employee of Oncology Nursing Society in Form 990 filings since fiscal year 2022. Total compensation for Karen Hammelef has increased by 1.3% from 2022 to 2024.

Annual compensation details

$170,744
-0.8%
Director of Products
2024
$162k org
30 hrs/wk
$10k other
--
$172,056
+2.1%
Director of Products
2023
$162k org
40 hrs/wk
$11k other
--

Total compensation by year

Compare the compensation of Karen Hammelef to:

2024

Other employees at Oncology Nursing Society

Brenda Nevidjon
Chief Executive Officer
$534,492
$513,792 from orgNo related comp$20,700 other
Kristine Burns
Chief Administrative Officer
$311,257
$272,912 from orgNo related comp$38,345 other
Lori Brown
Executive Director
$265,029
$222,961 from orgNo related comp$42,068 other
Erica Fischer-Cartlidge
Chief Clinical Officer
$235,558
$220,869 from orgNo related comp$14,689 other
Angela Stengel
Executive Director ONF
$214,922
$202,776 from orgNo related comp$12,146 other
Jeff Dewalt
Chief Financial Officer (Exit 6/24)
$179,986
$169,668 from orgNo related comp$10,318 other
Kris Schwartz
Finance Director
$179,739
$158,656 from orgNo related comp$21,083 other
Greg Crider Director of
Project Management Office
$173,861
$155,721 from orgNo related comp$18,140 other
Jennifer Feeman Chief
Financial Officer (Enter 4/24)
$171,463
$149,658 from orgNo related comp$21,805 other
Loading rankings…
Loading related profiles…

Revisions to this profile

January 25, 2026:
2024 Oncology Nursing Society 990 published
January 25, 2026:
2023 Oncology Nursing Society 990 published
January 25, 2026:
2022 Oncology Nursing Society 990 published

Get an email update when compensation for Karen Hammelef is updated

Related Jobs

View more jobs
Powered by Talroo
Report a discrepancy →
$168,548
Director of Products
2022
$159k org
40 hrs/wk
$11k other
--