CMS Leadership

Office of Support Services & Operations

Elizabeth (Liz) Mack

Deputy Director

Elizabeth (Liz) Mack is the Deputy Director of the Office of Support Services and Operations (OSSO). As the Deputy Director of OSSO, she supports the agency in the executive leadership of the numerous OSSO programs including all aspects of physical security, critical infrastructure protection, counter intelligence, personnel security, printing and distribution services, mail services, conference facilities, telecommunication operations, occupational health and safety programs, and administrative system development and maintenance for CMS.

During her time at CMS, Liz has been the Director of the Division of Performance and Organizational Programs (DPOP) in the Office of Human Capital (OHC). In this role, Liz is responsible for oversight of multiple CMS programs, such as Performance Management for both SES and non-SES employees, Telework, Building Closure Policy, Reorganizations, Delegations of Authority, Awards, and the CMS Virtual Resource Center. Liz served as the Senior Advisor to the Director of the Office of Operation Management (OOM), where she was a member of the team that represented the Agency on negotiating the 2014 Master Labor Agreement (MLA). Prior to her Senior Advisor role, Liz served as the Director of the Division of Budget Formulation in the Office of Financial Management (OFM), where she led the efforts of budget formulation and execution of the highly complex CMS budget and was also the CMS liaison to the House and Senate Appropriations Committees. Liz began her CMS career in the Medicaid arena where she was responsible for executing demonstration and waiver programs for vulnerable populations. Liz also assisted in the regulation development of the Program of All-Inclusive Care for the Elderly (PACE).

Liz is a graduate of Towson State University, and the America’s Health Insurance Plans (AHIP) Fellows program.