Beaman served as founding President of Palmetto Health at its inception in 1998, and was appointed CEO in 2007. He began his career with Baptist Healthcare System of South Carolina, Inc., serving as CEO from 1987 to 1998. He has served as a member and chair of the South Carolina Hospital Association board of trustees, the southeast regional health care representative to the American Hospital Association Regional Policy board, and past president of the National Baptist Healthcare Association. He currently serves as a member on governing boards of the Prisma Health–Midlands affiliate, the Prisma Health Midlands Network, the Prisma Health Midlands Foundation, The Tuomey Foundation and the Initiant board of managers.