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 will send a mailed letter 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.

Documents proving eligibility for each enrolled dependent must be received by Mercer by July 29, 2024. Failure to do so will result in the dependent being removed from coverage on Sept. 30, 2024.

Please look for the information Mercer will be sending on June 18 and take action by the July 29 deadline.

Dependent verification audits are a best practice among employers to help manage regulatory compliance and rising health insurance costs.

If you have additional questions about this process or the eligibility of your covered family members, you can contact the Mercer Call Center at 866-703-3763 beginning June 18.