Verify family members’ eligibility for benefits by July 29

King County and its labor partners are collaborating with our trusted vendor Mercer Consulting to conduct an eligibility verification of the dependents enrolled in our health plans. If you cover a family member on your King County medical, dental, or vision plan, you are required to verify the eligibility of each person by completing the process and providing documentation.

On June 18, Mercer sent a mailed letter to your home address and an email with instructions and details explaining the process. Employees are required to review plan eligibility requirements and provide documentation supporting the eligibility of each dependent or indicate removal for any family member who is not eligible.

Documents may include birth certificates; marriage certificates; tax returns; and documents that show relationship status, such as utility bills, bank statements, mortgage or lease, or vehicle registration. A Benefit Access Fee Audit form is also required for spouses and state-registered domestic partners enrolled in the KingCare PPO medical plan.

Complete the verification process and submit documents proving eligibility for each enrolled dependent through the Mercer secure portal by July 29, 2024. Failure to do so will result in the dependent being removed from coverage on Sept. 30, 2024.

For more information, see the FAQ, watch the Dependent Eligibility Verification Website Demo, or watch the overview video in English, Spanish, Russian, Vietnamese, or Simplified Chinese. You can also call the Mercer Call Center: 866-703-3763.