Medicare Advantage in San Miguel County, New Mexico
4,215 people in San Miguel County, New Mexico were enrolled in Medicare Advantage in October 2026, 56.6% of 7,450 eligible beneficiaries (+1.7 pts since October 2025). Humana Inc. is the largest parent organization with 33% of reported enrollment; 9 parent organizations have 11 or more members and the HHI is 2,517 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 607 members here are in plans that terminate or leave the county, and CHRISTUS Health, Molina Healthcare, Inc. leave. MA plans offered go from 20 to 18.
Parent organizations in San Miguel County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,396 | +129 | 33.3% |
| UnitedHealth Group, Inc. | 1,177 | +22 | 28.1% |
| Health Care Service Corporation | 879 | +17 | 21.0% |
| Presbyterian Healthcare Services | 540 | −61 | 12.9% |
| CHRISTUS Health | 128 | +13 | 3.1% |
| Molina Healthcare, Inc. | 28 | new | 0.7% |
| Devoted Health, Inc. | 19 | new | 0.5% |
| Elevance Health, Inc. | 11 | −2 | 0.3% |
| CVS Health Corporation | 11 | new | 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, 373 beneficiaries in San Miguel County were assigned to 19 Medicare Shared Savings Program ACOs, 17.5% of assignable Original Medicare beneficiaries. Together, roughly 64% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.