Medicare Beneficiary Preservation of Choice Act of 2013 - Amends title XVIII (Medicare) of the Social Security Act, as amended by the Patient Protection and Affordable Care Act, to repeal the allowance for disenrollment, between January 1 and March 15 of each year, only from an MedicareAdvantage plan to elect enrollment in the original Medicare fee-for-service program.
Restores the option under previous law to elect to change from a MedicareAdvantage to the original Medicare fee-for-service plan, or from the original Medicare fee-for-service to a MedicareAdvantage plan, once a year during the first three months.