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Medicare Open Enrollment Opens as Millions Face Plan Terminations and 2027 Cost Changes

The enrollment window starts today and forces many beneficiaries to pick new coverage before negotiated drug prices and higher Part D costs take effect next year.

Overview

  • Open Enrollment runs Oct. 15 through Dec. 7, and changes made in this period take effect Jan. 1 for 2027 coverage.
  • About 2.9 million people in roughly 680 Medicare Advantage plans received termination notices that end coverage Dec. 31, creating a special enrollment window to choose new plans or return to Original Medicare.
  • Major 2027 policy shifts include negotiated prices for select high-cost drugs (including several GLP-1s), a higher Part D out-of-pocket cap of $2,400 and a higher standard Part D deductible, plus the end of a temporary Part D premium subsidy.
  • Federal protections allow people who lose an Advantage plan to buy Medigap without medical underwriting during a limited guaranteed-issue period, and CMS has updated the Plan Finder while SHIP counselors and 1-800-MEDICARE can help with comparisons.
  • Officials warn of heavy scam activity during enrollment and advise beneficiaries to verify contacts through official channels; the administration is also issuing a one-time $90 Part B rebate in October to about 20 million eligible enrollees but many Advantage enrollees are excluded.