Deadline to complete dependent eligibility verification extended to Aug. 12
To ensure that all employees have the opportunity to complete the dependent eligibility verification process so that their family members can continue their coverage on their King County medical, dental, or vision plan, the deadline has been extended to Aug. 12, 2024.
If you haven’t completed the process, please use this two-week grace period to verify the eligibility of each person enrolled to make sure they do not lose coverage on Sept. 30, 2024. If you have coverage questions, please contact King County Benefits.
Using the Audit ID sent to you by Mercer, access the Mercer Secure Website to check your verification progress, view the list of documents needed for each of your family members, and submit documents. If you can’t find your Audit ID, please call Mercer at 866-703-3763. You can also mail paper copies of your documents to: Dependent Eligibility Verification, P.O. Box 14585, Des Moines, IA 50306-3585. Be sure to block out personal financial data and Social Security numbers before submitting documents.
Note: During the grace period, Mercer reminders will be sent from a different mercer.com email address.
More information:
- Dependent Eligibility Verification FAQ
- Dependent Eligibility Verification Website Demo
- Overview video: in English, Korean, Punjabi, Russian, Simplified Chinese, Spanish, Ukrainian, or Vietnamese
- Contact Mercer at 866-703-3763.

