Medicare Advantage in Hamblen County, Tennessee
9,678 people in Hamblen County, Tennessee were enrolled in Medicare Advantage in October 2026, 62.4% of 15,501 eligible beneficiaries (+0.7 pts since October 2025). Humana Inc. is the largest parent organization with 36% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 3,033 (highly concentrated). For 2027, 511 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 36 to 38.
Parent organizations in Hamblen County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 3,432 | +151 | 35.7% |
| UnitedHealth Group, Inc. | 3,429 | −169 | 35.6% |
| BlueCross BlueShield of Tennessee | 2,109 | +203 | 21.9% |
| Elevance Health, Inc. | 188 | +1 | 2.0% |
| Health Care Service Corporation | 136 | −22 | 1.4% |
| Centene Corporation | 101 | −13 | 1.0% |
| Devoted Health, Inc. | 97 | +45 | 1.0% |
| CVS Health Corporation | 59 | +7 | 0.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 51 | −7 | 0.5% |
| UMWA Health and Retirement Funds | 18 | −3 | 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, 1,625 beneficiaries in Hamblen County were assigned to 52 Medicare Shared Savings Program ACOs, 37.1% of assignable Original Medicare beneficiaries. Together, roughly 76% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.