Medicare Advantage in Ellis County, Texas
20,570 people in Ellis County, Texas were enrolled in Medicare Advantage in October 2026, 53.3% of 38,605 eligible beneficiaries (+0.4 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 64% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 4,537 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 2,431 members here are in plans that terminate or leave the county, and Health Care Service Corporation, Mitchell Family Office leave. MA plans offered go from 35 to 32.
Parent organizations in Ellis County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 13,167 | +360 | 64.2% |
| Humana Inc. | 3,594 | +321 | 17.5% |
| Baylor Scott & White Health | 1,753 | +664 | 8.5% |
| CVS Health Corporation | 1,017 | +86 | 5.0% |
| Health Care Service Corporation | 510 | −211 | 2.5% |
| Centene Corporation | 225 | −79 | 1.1% |
| Elevance Health, Inc. | 161 | +49 | 0.8% |
| Molina Healthcare, Inc. | 35 | −12 | 0.2% |
| Mitchell Family Office | 27 | −6 | 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 14 | −2 | 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, 6,484 beneficiaries in Ellis County were assigned to 80 Medicare Shared Savings Program ACOs, 55.5% of assignable Original Medicare beneficiaries. Together, roughly 79% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.