Medicare Advantage in Phelps County, Missouri
4,955 people in Phelps County, Missouri were enrolled in Medicare Advantage in October 2026, 50.1% of 9,896 eligible beneficiaries (+1.6 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 72% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 5,472 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 55 members here are in plans that terminate or leave the county. MA plans offered go from 30 to 30.
Parent organizations in Phelps County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 3,549 | +148 | 72.0% |
| Humana Inc. | 760 | +248 | 15.4% |
| CVS Health Corporation | 331 | +113 | 6.7% |
| Elevance Health, Inc. | 121 | −366 | 2.5% |
| Centene Corporation | 63 | +27 | 1.3% |
| Mitchell Family Office | 43 | new | 0.9% |
| CoxHealth | 25 | new | 0.5% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 21 | −3 | 0.4% |
| Rifkin Managed Care Holding, LLC | 18 | +2 | 0.4% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,165 beneficiaries in Phelps County were assigned to 27 Medicare Shared Savings Program ACOs, 79.6% of assignable Original Medicare beneficiaries. Together, roughly 90% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.