TRYNYTYhealth:enablement
MA Enrollment Explorer / Missouri / Shannon County

Medicare Advantage in Shannon County, Missouri

1,167 people in Shannon County, Missouri were enrolled in Medicare Advantage in October 2026, 51.9% of 2,248 eligible beneficiaries (−1.2 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 44% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 3,467 (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 21.

51.9%MA penetration, October 2026
1,167MA enrollees
44%leading parent's share
58.3%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Missouri

Parent organizations in Shannon County

Parent organizationMembersChange since October 2025Share
UnitedHealth Group, Inc.493+1943.6%
Devoted Health, Inc.427new37.8%
CVS Health Corporation116+610.3%
Humana Inc.57+155.0%
Elevance Health, Inc.38−4763.4%

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

Value-based care alongside MA

In PY 2024, 427 beneficiaries in Shannon County were assigned to 13 Medicare Shared Savings Program ACOs, 58.3% of assignable Original Medicare beneficiaries. Together, roughly 80% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.