Medicare Advantage in Giles County, Tennessee
3,597 people in Giles County, Tennessee were enrolled in Medicare Advantage in October 2026, 45.4% of 7,921 eligible beneficiaries (+0.6 pts since October 2025). BlueCross BlueShield of Tennessee is the largest parent organization with 31% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,150 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 306 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 40 to 35.
Parent organizations in Giles County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| BlueCross BlueShield of Tennessee | 1,097 | +74 | 30.8% |
| UnitedHealth Group, Inc. | 1,034 | −100 | 29.0% |
| Humana Inc. | 579 | +180 | 16.2% |
| Elevance Health, Inc. | 227 | −42 | 6.4% |
| CVS Health Corporation | 177 | −21 | 5.0% |
| Health Care Service Corporation | 151 | +2 | 4.2% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 101 | −3 | 2.8% |
| Centene Corporation | 80 | −1 | 2.2% |
| Devoted Health, Inc. | 59 | +19 | 1.7% |
| Missouri Healthcare Advisors, LLC | 28 | 0 | 0.8% |
| Mitchell Family Office | 19 | −4 | 0.5% |
| Highmark Health | 15 | +1 | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 895 beneficiaries in Giles County were assigned to 37 Medicare Shared Savings Program ACOs, 27.1% 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.