Medicare Advantage in Robertson County, Tennessee
9,236 people in Robertson County, Tennessee were enrolled in Medicare Advantage in October 2026, 57.9% of 15,959 eligible beneficiaries (−0.4 pts since October 2025). Health Care Service Corporation is the largest parent organization with 32% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,292 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 588 members here are in plans that terminate or leave the county, and Centene Corporation leaves. MA plans offered go from 40 to 36.
Parent organizations in Robertson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Health Care Service Corporation | 2,946 | +357 | 32.1% |
| BlueCross BlueShield of Tennessee | 2,561 | +98 | 27.9% |
| UnitedHealth Group, Inc. | 1,643 | −433 | 17.9% |
| Humana Inc. | 1,103 | +199 | 12.0% |
| Elevance Health, Inc. | 339 | −20 | 3.7% |
| CVS Health Corporation | 173 | −50 | 1.9% |
| Devoted Health, Inc. | 150 | +66 | 1.6% |
| Centene Corporation | 143 | +12 | 1.6% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 60 | +3 | 0.7% |
| Missouri Healthcare Advisors, LLC | 37 | +5 | 0.4% |
| Zing Health Consolidator, Inc | 32 | new | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 1,160 beneficiaries in Robertson County were assigned to 39 Medicare Shared Savings Program ACOs, 26.8% of assignable Original Medicare beneficiaries. Together, roughly 69% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.