If you have Original Medicare with a standalone Part D prescription drug plan (often called a PDP), 2027 brings more change than usual. This is common for people who pair a Medicare Supplement with a separate drug plan. Medicare's Open Enrollment runs October 15 through December 7. Changes you make take effect January 1, 2027. Here is what is different this year and what to do about it. This article is about standalone drug plans. If your drug coverage is part of a Medicare Advantage plan, your plan's changes will be different. 1. The $0 premium drug plan is going away In 2027, no standalone drug plan will have a $0 monthly premium, unless you receive Extra Help. For the past two years, a temporary federal program held standalone drug plan premiums down. That program ends December 31, 2026. Nationally, more than 1 in 4 people in standalone drug plans paid $0 a month in 2026. If that was you, you will have a monthly premium starting in January, possibly for the first t...