Medicare Advantage in Overton County, Tennessee
3,031 people in Overton County, Tennessee were enrolled in Medicare Advantage in October 2026, 47.7% of 6,354 eligible beneficiaries (+0.9 pts since October 2025). BlueCross BlueShield of Tennessee is the largest parent organization with 37% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,840 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 194 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 34 to 32.
Parent organizations in Overton County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| BlueCross BlueShield of Tennessee | 1,124 | +36 | 37.4% |
| UnitedHealth Group, Inc. | 1,053 | +129 | 35.0% |
| Humana Inc. | 375 | +56 | 12.5% |
| Elevance Health, Inc. | 184 | −52 | 6.1% |
| CVS Health Corporation | 115 | −23 | 3.8% |
| Health Care Service Corporation | 88 | −4 | 2.9% |
| Centene Corporation | 38 | −9 | 1.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 31 | −2 | 1.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 859 beneficiaries in Overton County were assigned to 30 Medicare Shared Savings Program ACOs, 32.3% 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.