TRYNYTYhealth:enablement
MA Enrollment Explorer / New Mexico / Sandoval County

Medicare Advantage in Sandoval County, New Mexico

21,429 people in Sandoval County, New Mexico were enrolled in Medicare Advantage in October 2026, 56.6% of 37,828 eligible beneficiaries (+0.4 pts since October 2025). Presbyterian Healthcare Services is the largest parent organization with 36% of reported enrollment; 12 parent organizations have 11 or more members and the HHI is 2,501 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 8,706 members here are in plans that terminate or leave the county, and SCAN Group, Molina Healthcare, Inc., CHRISTUS Health leave. MA plans offered go from 34 to 21.

56.6%MA penetration, October 2026
21,429MA enrollees
36%leading parent's share
18.3%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in New Mexico

Parent organizations in Sandoval County

Parent organizationMembersChange since October 2025Share
Presbyterian Healthcare Services7,653−48435.8%
UnitedHealth Group, Inc.4,627+19921.7%
Humana Inc.4,187+40719.6%
Health Care Service Corporation4,057+31819.0%
CVS Health Corporation293+81.4%
Devoted Health, Inc.158new0.7%
SCAN Group137+770.6%
Elevance Health, Inc.11300.5%
Total Community Options, Inc.47+30.2%
Blue Cross Blue Shield of Michigan Mutual Ins. Co.4600.2%
Molina Healthcare, Inc.25+90.1%
CHRISTUS Health16+5under 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, 1,725 beneficiaries in Sandoval County were assigned to 88 Medicare Shared Savings Program ACOs, 18.3% of assignable Original Medicare beneficiaries. Together, roughly 65% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.