To Switch or Not to Switch: Are Medicare Beneficiaries Switching Drug Plans To Save Money?
Issue Brief
This analysis finds that relatively few Medicare beneficiaries have switched Part D prescription drug plans voluntarily during the annual open enrollment period — even though those who do switch often lower their out-of-pocket costs as a result of changing plans. The vast majority (87% on average between 2006 and 2010) stayed in the same Part D plan, even though the plans can change premiums, deductibles, cost-sharing amounts, and their list of covered drugs each year. Higher rates of plan switching were observed in PDPs that increased premiums, increased deductibles, or dropped coverage of brand-name drugs in the coverage gap.