Trey Walker

Walker brings more than four decades of experience in government, public affairs, and health policy to the role. Most recently, he served as Chief of Staff to South Carolina Governor Henry McMaster, a position he held since 2017, where he helped oversee the governor’s policy agenda and coordinated initiatives across state agencies and the legislature. 

Throughout his career, Walker has played a key role in South Carolina public policy and politics. He previously served as executive director of the South Carolina Republican Party from 1993 to 1999, and later worked as a senior advisor in multiple state administrations.

Walker also has significant experience in the health care sector, having worked as a government affairs advisor for BlueCross BlueShield of South Carolina, where he focused on legislative and policy issues affecting health care and insurance.

Casey Clyburn
Association and Event Services Director

Casey has over 10 years of experience planning events in the government and insurance industries including training, fundraising, and executive meetings.  She is able to see the bigger picture and break down the little details needed in order to paint it.  She is skilled at working with all levels to ensure a top-notch client experience and engaging event execution.

Casey is the Event Services Coordinator and is responsible for managing, planning, and coordinating client meetings and events. 

Casey graduated from the University of South Carolina with a degree in Hospitality, Restaurant, and Tourism Management.  Prior to joining the SC Alliance of Health Plans, she worked as the Executive Assistant to the Director at the South Carolina Department of Insurance.

Addie Thompson
Marketing and Communications Manager

Addie has ten years of non-profit communications experience with specialized work in social media, graphic design, and website communications.  Addie graduated from the University of South Carolina with a degree in fashion merchandising and began her career at a non-profit state association working in communications and fundraising.  

Addie has lived her whole life in South Carolina and has served in a variety of volunteer positions with the South Carolina Public Relations Society of America, Shandon United Methodist Church, and the Junior League of Columbia.

Steve Boucher
Director of Managed Care Services

Steve Boucher is the SCAHP liaison to the South Carolina Department of Health and Human Services. He is responsible for advancing the interests and priorities of the SCAHP Medicaid Managed Care Organizations before the department and within the public health care system across South Carolina.

Steve has more than thirty years of operational and policy experience in the healthcare industry in both private and governmental entities. His previous role as the Director of Managed Care for the South Carolina Department of Health and Human Services provides him with a unique perspective and makes him one of the most knowledgeable and experienced leaders on Medicaid managed care matters in South Carolina. 

Steve’s proven knowledge of managed care principles, his thorough understanding of the operations of the South Carolina Department of Health and Human Services, and his relationships with the managed care organizations in South Carolina will enable him to be an excellent and productive leader representing SCAHP.