Executive Leadership

Samantha Sizemore

Samantha Sizemore is chief operations officer at Holston Medical Group (HMG), where she is responsible for the day-to-day operations of all clinics, mid-level and physician providers, and team members. HMGs operations generate more than $100 million annually and provides integrated care, specialty care and a focus on primary care. Sizemore also oversees the management of HMG’s two ambulatory surgery centers and two outpatient diagnostic centers.

In her role, Sizemore is responsible for the design, build and implementation of operational structures and processes to create a strong and cohesive operations team and environment that supports the organizations key objectives and strategies. She fosters performance excellence and strong working relationships across all levels of the organization as well as with key partners. With over 25 years’ experience, Sizemore’s leadership has created a culture of accountability and professionalism, resulting in a high level of team work, mutual trust and respect for all team members across the organization.

Her broad knowledge of operations and clinical background earned her great respect and recognition for her expertise in provider operations, development and diagnostic imaging. Sizemore possesses excellent leadership skills and has a passion for developing talent within the organization.