Medicare Advantage in Macon County, Tennessee
2,836 people in Macon County, Tennessee were enrolled in Medicare Advantage in October 2026, 50.9% of 5,577 eligible beneficiaries (+0.6 pts since October 2025). BlueCross BlueShield of Tennessee is the largest parent organization with 34% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,330 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 179 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 36 to 34.
Parent organizations in Macon County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| BlueCross BlueShield of Tennessee | 959 | +97 | 34.3% |
| UnitedHealth Group, Inc. | 746 | −52 | 26.7% |
| Health Care Service Corporation | 438 | −51 | 15.7% |
| Humana Inc. | 338 | +92 | 12.1% |
| Elevance Health, Inc. | 165 | −32 | 5.9% |
| CVS Health Corporation | 52 | −11 | 1.9% |
| Centene Corporation | 50 | +1 | 1.8% |
| Devoted Health, Inc. | 44 | +20 | 1.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 915 beneficiaries in Macon County were assigned to 23 Medicare Shared Savings Program ACOs, 46.8% of assignable Original Medicare beneficiaries. Together, roughly 74% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.