Medicare provides essential support for millions of older Americans in protecting their health. Those who choose to join Medicare receive a card that identifies them as Medicare participants, and for decades, the design of the Medicare card stayed the same. Recently, concerns about the potential for fraud and identity theft led the Centers for Medicare & Medicaid Services (CMS) to come up with a design for new Medicare cards.These new cards haven't started to go out yet, but already, many people are worried about scams that look to take advantage of Medicare participants.