Retirement of CCHP CEO Sharron Mackey

Colleagues,

We are writing to let you know that Sharron Mackey, the CEO of Contra Costa Health Plan (CCHP) the past eight years, will be retiring at the end of March.

Sharron has been passionate about CCHP members’ health and access to quality care. During her time as CEO, Sharron guided CCHP through a time of significant change and growth that saw more than 100,000 new members join the Health Plan. She skillfully led the county’s transition to a single-plan model and implemented an array of new benefits to improve health outcomes in our community.

We are grateful for Sharron’s dedication and leadership. We wish her all the best in the next chapter of her life.

While we recruit for Sharron’s permanent replacement, Dr. Irene Lo will serve as CCHP’s interim CEO.

Dr. Lo has been CCHP’s Chief Medical Officer (CMO) since August 2023 and is currently president of the Alameda-Contra Costa Medical Association. As CMO, she has hands-on knowledge of the Health Plan’s operations and will help ensure continuity as CCHP prepares for a state-mandated expansion into the Medicare market. Dr. Lo is deeply committed to ensuring access to quality care and advocating for a patient-centered approach that aligns with the mission and values of the organization.

Please join us in congratulating Dr. Lo on her new interim role!