TRYNYTYhealth:enablement
MA Enrollment Explorer / Mississippi / Leake County

Medicare Advantage in Leake County, Mississippi

2,233 people in Leake County, Mississippi were enrolled in Medicare Advantage in October 2026, 48.1% of 4,646 eligible beneficiaries (+0.1 pts since October 2025). Humana Inc. is the largest parent organization with 42% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,337 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 29 to 33.

48.1%MA penetration, October 2026
2,233MA enrollees
42%leading parent's share
31.7%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Mississippi

Parent organizations in Leake County

Parent organizationMembersChange since October 2025Share
Humana Inc.919+4241.7%
UnitedHealth Group, Inc.815−7037.0%
Centene Corporation305−1313.8%
Devoted Health, Inc.127new5.8%
CVS Health Corporation37−171.7%

CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.

Value-based care alongside MA

In PY 2024, 623 beneficiaries in Leake County were assigned to 11 Medicare Shared Savings Program ACOs, 31.7% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.