Medicare Advantage in Roane County, Tennessee
8,977 people in Roane County, Tennessee were enrolled in Medicare Advantage in October 2026, 56.5% of 15,879 eligible beneficiaries (+0.2 pts since October 2025). Humana Inc. is the largest parent organization with 50% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 3,546 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 434 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 32 to 34.
Parent organizations in Roane County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 4,425 | +118 | 49.5% |
| UnitedHealth Group, Inc. | 2,550 | −77 | 28.6% |
| BlueCross BlueShield of Tennessee | 1,464 | +84 | 16.4% |
| Elevance Health, Inc. | 182 | −14 | 2.0% |
| Centene Corporation | 87 | −9 | 1.0% |
| Devoted Health, Inc. | 84 | +51 | 0.9% |
| CVS Health Corporation | 69 | −3 | 0.8% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 50 | −6 | 0.6% |
| Mitchell Family Office | 20 | +1 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 455 beneficiaries in Roane County were assigned to 50 Medicare Shared Savings Program ACOs, 8.3% of assignable Original Medicare beneficiaries. Together, roughly 60% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.