Medicare Advantage in Riley County, Kansas
1,743 people in Riley County, Kansas were enrolled in Medicare Advantage in October 2026, 18.6% of 9,346 eligible beneficiaries (−0.3 pts since October 2025). Humana Inc. is the largest parent organization with 58% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 4,001 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 269 members here are in plans that terminate or leave the county, and Blue Cross Blue Shield of Kansas leaves. MA plans offered go from 14 to 11.
Parent organizations in Riley County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 999 | +2 | 58.4% |
| CVS Health Corporation | 294 | +114 | 17.2% |
| Blue Cross Blue Shield of Kansas | 270 | +50 | 15.8% |
| UnitedHealth Group, Inc. | 104 | −4 | 6.1% |
| Kansas Superior Select | 43 | +4 | 2.5% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 4,636 beneficiaries in Riley County were assigned to 35 Medicare Shared Savings Program ACOs, 76.9% of assignable Original Medicare beneficiaries. Together, roughly 81% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.