 As of about 2015 over half the people fully signing up for Medicare for the first time are choosing a public Part C plan of some type as opposed to FFS Medicare (as reflected in the 0% to over 35% penetration rate growth in 21 years).As noted millions more beneficiaries are on Part C since 2011 than before 2011 and the per-person cost numbers have been at parity or below since 2012.This is good because that was the Part C program's intention from the time in 1995 when Democrats first proposed it.