Medicare Supplement market leader United Healthcare (UHC) released 2nd quarter 2025 financials on July 29th, reporting a 5,000 decrease in Medicare Supplement lives in 2nd quarter.  The UHC enrollment table below features Standardized and Modernized policy in-force counts of 4,305,000 as of 6/302025, which is a 30,000 decrease in the past 12 months.  UHC continues to hold the largest market share in the Medicare Supplement market by a wide margin.

This UHC enrollment table shows Medicare Advantage enrollment counts of 8,350,000 as of 6/30/2025, a 580,000 increase in the past 12 months.  The 580,000 enrollment increase in the past year is a 7.5% increase over the Medicare Advantage enrollment counts as of 6/30/2024.

This UHC enrollment table shows Medicare PDP enrollment counts of 2,800,000 as of 6/30/2025, a 265,000 decrease in the past 12 months.  The 265,000 enrollment decrease in the past year is an 8.6% decrease over the Medicare PDP enrollment counts as of 6/30/2024.