Medicare Advantage in Benton County, Arkansas
27,066 people in Benton County, Arkansas were enrolled in Medicare Advantage in October 2026, 50.3% of 53,832 eligible beneficiaries (−0.3 pts since October 2025). Humana Inc. is the largest parent organization with 44% of reported enrollment; 14 parent organizations have 11 or more members and the HHI is 2,896 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 307 members here are in plans that terminate or leave the county. MA plans offered go from 39 to 44.
Parent organizations in Benton County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 11,755 | +3,544 | 43.6% |
| UnitedHealth Group, Inc. | 7,188 | −902 | 26.6% |
| CVS Health Corporation | 4,254 | −2,186 | 15.8% |
| USAble Mutual Insurance Company | 1,133 | −507 | 4.2% |
| Devoted Health, Inc. | 926 | +645 | 3.4% |
| Centene Corporation | 579 | −137 | 2.1% |
| Health Care Service Corporation | 457 | +114 | 1.7% |
| Lumeris Group Holdings Corporation | 369 | +77 | 1.4% |
| Select Founders, LLC | 198 | +9 | 0.7% |
| Elevance Health, Inc. | 43 | +4 | 0.2% |
| Washington Regional Medical System | 33 | −2 | 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 18 | −6 | under 0.1% |
| California Physicians' Service | 17 | +5 | under 0.1% |
| Highmark Health | 12 | new | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 15,089 beneficiaries in Benton County were assigned to 119 Medicare Shared Savings Program ACOs, 82.2% of assignable Original Medicare beneficiaries. Together, roughly 91% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.