Medicare Advantage in Obion County, Tennessee
3,756 people in Obion County, Tennessee were enrolled in Medicare Advantage in October 2026, 47.6% of 7,892 eligible beneficiaries (−0.5 pts since October 2025). Highmark Health is the largest parent organization with 28% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 2,248 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 162 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 25 to 25.
Parent organizations in Obion County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Highmark Health | 1,024 | −53 | 27.5% |
| BlueCross BlueShield of Tennessee | 950 | +28 | 25.5% |
| UnitedHealth Group, Inc. | 751 | +26 | 20.2% |
| Humana Inc. | 745 | +61 | 20.0% |
| Elevance Health, Inc. | 192 | −16 | 5.2% |
| Centene Corporation | 38 | −20 | 1.0% |
| CVS Health Corporation | 19 | −49 | 0.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,185 beneficiaries in Obion County were assigned to 31 Medicare Shared Savings Program ACOs, 34.7% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.