Medicare Advantage in Madison County, Mississippi
7,797 people in Madison County, Mississippi were enrolled in Medicare Advantage in October 2026, 33.0% of 23,594 eligible beneficiaries (−0.2 pts since October 2025). Humana Inc. is the largest parent organization with 40% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,764 (highly concentrated). For 2027, 121 members here are in plans that terminate or leave the county, and BlueCross BlueShield of Alabama leaves. MA plans offered go from 33 to 36.
Parent organizations in Madison County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 3,115 | +310 | 40.2% |
| UnitedHealth Group, Inc. | 2,242 | −151 | 28.9% |
| Centene Corporation | 1,194 | −11 | 15.4% |
| Devoted Health, Inc. | 515 | +446 | 6.6% |
| Health Care Service Corporation | 344 | −75 | 4.4% |
| CVS Health Corporation | 245 | −53 | 3.2% |
| BlueCross BlueShield of Alabama | 62 | −11 | 0.8% |
| Elevance Health, Inc. | 22 | +2 | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 11 | 0 | 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 4,266 beneficiaries in Madison County were assigned to 57 Medicare Shared Savings Program ACOs, 36.7% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.