Insurance premium increases for Medicare supplemental, or Medigap, policies are becoming the norm, according to brokers and agents. The policies cover costs not covered in traditional Medicare, which are often delayed due to unexpected premium increases. Last August, a 45% increase in the same Medicare supplemental plan from the insurer Chubb led to over 80 customers experiencing a 45%. The rise in premium rates for these policies is seen as an indication that insurers are seeking to correct their premium rates due to increased claims costs. Factors such as increased use of medical services by beneficiaries, the aging population, and rules governing Medigaps plans. In early 2026, state insurance commissioners from Aetna, Blue Cross Blue Shield, Cigna, Humana, Mutual of Omaha and UnitedHealthcare reported rate increases for Plan G policies ranging from just over 12% to more than 26%. In Alaska, Premera Blue Cross raised the premiums on its Plan G policy by nearly 12% for this year, and another insurer increased rates by nearly 13%.