Medicare Advantage in Lea County, New Mexico
3,408 people in Lea County, New Mexico were enrolled in Medicare Advantage in October 2026, 34.4% of 9,905 eligible beneficiaries (+2.3 pts since October 2025). Humana Inc. is the largest parent organization with 62% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 4,377 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 575 members here are in plans that terminate or leave the county, and Molina Healthcare, Inc. leaves. MA plans offered go from 9 to 5.
Parent organizations in Lea County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,095 | −123 | 62.0% |
| Health Care Service Corporation | 612 | +44 | 18.1% |
| UnitedHealth Group, Inc. | 465 | +354 | 13.8% |
| Presbyterian Healthcare Services | 80 | −16 | 2.4% |
| CVS Health Corporation | 73 | −11 | 2.2% |
| Molina Healthcare, Inc. | 53 | +21 | 1.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,196 beneficiaries in Lea County were assigned to 27 Medicare Shared Savings Program ACOs, 70.1% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.