What Is Palmetto Gba Medicare? 
Palmetto GBA -LRB- Government Benefits Administrators -RRB- is a wholly owned subsidiary of BlueCrossBlueShield of South Carolina . The company is headquartered in Columbia , SC . Palmetto GBA has administered complex transaction processing for the Centers of Medicare and Medicaid -LRB- CMS -RRB- since the inception of Medicare in 1965 . They have employees in 14 states . 