Insurance Letters Seniors Should Read Immediately

In 2026, retirees must urgently open five key Medicare-related letters: Plan Termination Notices signal insurers exiting areas, risking loss of drug coverage; Network Termination Letters warn doctors leaving networks, causing out-of-pocket costs; Formulary Change Notices indicate drug removals or higher tiers; Coordination of Benefits Requests must be returned to avoid claim denials; IRMAA Determination Letters allow 60 days to appeal income-based premium surcharges. Ignoring these can lead to lost coverage or high costs.