2027 California Medicare Open Enrollment guide: Part D plans, premiums, and the new $2,400 drug cap
Medicare open enrollment runs October 15 to December 7, 2026. Here is every stand-alone Part D plan sold in California for 2027 with its new premium, the $700 deductible and $2,400 cap, Extra Help, 15 lower negotiated drug prices and Medicare Advantage plan counts by county.