Part D plans are not offered by original Medicare itself. Rather Medicare authorizes Part D plans from medicare advantage plan that meet yearly standards set by Medicare to be sold to the public. If you take expensive prescription medications, it’s definitely to your benefit to enrolling in a Part D plan when you become eligible for Medicare. To know more visit here https://www.capitalbluemedicare.com/wps/portal/capm/home/what-is-medicare/medicare-faq
