Source: CMS Plan and Premium Information for Medicare Plans Offering Part D Coverage, 2010–2020.
Notes: Data represent average plan premiums weighted by plan enrollment and are not adjusted by inflation. Data do not include Special Needs Plans, employer-sponsored plans, Part B–only plans, or plans not offering a Part D drug benefit. The Part C premium covers Medicare medical and hospital care; the Part D premium is a total (basic and supplemental) premium.