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MA Enrollment Explorer / Missouri / Bollinger County

Medicare Advantage in Bollinger County, Missouri

1,291 people in Bollinger County, Missouri were enrolled in Medicare Advantage in October 2026, 42.7% of 3,020 eligible beneficiaries (+1.1 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 67% of reported enrollment; 7 parent organizations have 11 or more members and the HHI is 4,832 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 0 members here are in plans that terminate or leave the county. MA plans offered go from 19 to 20.

42.7%MA penetration, October 2026
1,291MA enrollees
67%leading parent's share
32.5%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Missouri

Parent organizations in Bollinger County

Parent organizationMembersChange since October 2025Share
UnitedHealth Group, Inc.850+13266.9%
Humana Inc.177+7213.9%
CVS Health Corporation157+5012.4%
Elevance Health, Inc.30−2142.4%
Blue Cross Blue Shield of Michigan Mutual Ins. Co.22+11.7%
Mitchell Family Office22+31.7%
Devoted Health, Inc.13new1.0%

CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.

Value-based care alongside MA

In PY 2024, 453 beneficiaries in Bollinger County were assigned to 18 Medicare Shared Savings Program ACOs, 32.5% of assignable Original Medicare beneficiaries. Together, roughly 61% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.