Medicare Advantage in Grant County, New Mexico
4,362 people in Grant County, New Mexico were enrolled in Medicare Advantage in October 2026, 47.1% of 9,255 eligible beneficiaries (+1.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 74% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 5,672 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 236 members here are in plans that terminate or leave the county, and Molina Healthcare, Inc. leaves. MA plans offered go from 17 to 11.
Parent organizations in Grant County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 3,185 | −1 | 73.6% |
| Humana Inc. | 611 | +52 | 14.1% |
| Health Care Service Corporation | 322 | +25 | 7.4% |
| Presbyterian Healthcare Services | 98 | −19 | 2.3% |
| Devoted Health, Inc. | 49 | new | 1.1% |
| CVS Health Corporation | 33 | −3 | 0.8% |
| Molina Healthcare, Inc. | 17 | new | 0.4% |
| Elevance Health, Inc. | 15 | 0 | 0.3% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 822 beneficiaries in Grant County were assigned to 39 Medicare Shared Savings Program ACOs, 22.6% of assignable Original Medicare beneficiaries. Together, roughly 59% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.