MA Enrollment Explorer / States / New Mexico
Medicare Advantage in New Mexico: enrollment, penetration and market share
243,369 people in New Mexico were enrolled in Medicare Advantage in October 2026. 50.8% of the state's 479,534 eligible Medicare beneficiaries are in Medicare Advantage, +0.6 pts since October 2025. UnitedHealth Group, Inc. is the largest parent organization with 34% of reported enrollment; 16 parent organizations have 11 or more members, and the market's HHI is 2,457 (highly concentrated). Through the 2026 Annual Election Period (December to February), reported MA enrollment in New Mexico changed by +3,730 (+1.6%).
50.8%MA penetration, October 2026
243KMA enrollees
16parent organizations (11+ members)
2,457HHI, highly concentrated
Parent organizations in New Mexico
| Parent organization | Members | Change | Share | Share change |
|---|---|---|---|---|
| UnitedHealth Group, Inc. | 82,263 | +4,249 | 34.0% | +0.8 pts |
| Humana Inc. | 54,801 | +2,614 | 22.7% | +0.5 pts |
| Presbyterian Healthcare Services | 52,304 | −4,231 | 21.6% | −2.4 pts |
| Health Care Service Corporation | 43,042 | +100 | 17.8% | −0.5 pts |
| Devoted Health, Inc. | 2,321 | new | 1.0% | +1.0 pts |
| CVS Health Corporation | 2,164 | −9 | 0.9% | −0.03 pts |
| Molina Healthcare, Inc. | 1,404 | +776 | 0.6% | +0.3 pts |
| CHRISTUS Health | 1,188 | +281 | 0.5% | +0.1 pts |
| SCAN Group | 861 | +560 | 0.4% | +0.2 pts |
| Elevance Health, Inc. | 787 | +20 | 0.3% | −0.00 pts |
| Total Community Options, Inc. | 415 | +9 | 0.2% | −0.00 pts |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 198 | −11 | under 0.1% | −0.01 pts |
| California Physicians' Service | 63 | 0 | under 0.1% | −0.00 pts |
| Highmark Health | 34 | 0 | under 0.1% | −0.00 pts |
| UMWA Health and Retirement Funds | 29 | −1 | under 0.1% | −0.00 pts |
| Consolidated Assoc of Railroad Employees HC | 18 | −2 | under 0.1% | −0.00 pts |
Change and share change are since October 2025. Shares are of reported enrollment in the CMS State/County/Contract file.