Medicare Advantage in Santa Fe County, New Mexico
19,423 people in Santa Fe County, New Mexico were enrolled in Medicare Advantage in October 2026, 41.5% of 46,797 eligible beneficiaries (−0.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 32% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,313 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 5,020 members here are in plans that terminate or leave the county, and CHRISTUS Health, Molina Healthcare, Inc. leave. MA plans offered go from 31 to 20.
Parent organizations in Santa Fe County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| UnitedHealth Group, Inc. | 6,155 | −167 | 31.8% |
| Humana Inc. | 4,656 | +274 | 24.1% |
| Health Care Service Corporation | 4,104 | +235 | 21.2% |
| Presbyterian Healthcare Services | 3,115 | −292 | 16.1% |
| CHRISTUS Health | 591 | +60 | 3.1% |
| CVS Health Corporation | 329 | +13 | 1.7% |
| Elevance Health, Inc. | 145 | −1 | 0.7% |
| Devoted Health, Inc. | 94 | new | 0.5% |
| Molina Healthcare, Inc. | 78 | +58 | 0.4% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 47 | −3 | 0.2% |
| Highmark Health | 21 | +3 | 0.1% |
| California Physicians' Service | 16 | −1 | 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, 8,360 beneficiaries in Santa Fe County were assigned to 160 Medicare Shared Savings Program ACOs, 44.8% of assignable Original Medicare beneficiaries. Together, roughly 68% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.