10/02/2026
Your Medicare plan was required to mail you an Annual Notice of Change by September 30. It's easy to file it away unread. Before October 15, open it and check four things.
1. Your prescriptions. Are they still on the covered list, and did any of them move to a higher tier? A tier change can cost you more over a year than a premium increase.
2. Your pharmacy. The same prescription can cost a different amount at different pharmacies within the same plan. Confirm yours is still preferred.
3. Your doctors and hospitals. If you're on a Medicare Advantage plan, make sure the people you see are still in network for 2027.
4. Your total cost for the year. Premiums, deductibles, and out-of-pocket maximums across all 12 months, side by side with other plans.
One caution if you're thinking about moving from an Advantage plan back to Original Medicare: sort out your Medigap coverage first. Outside of certain protected windows, insurers can review your medical history and say no.