TRYNYTYhealth:enablement
MA Enrollment Explorer / Mississippi / Sharkey County

Medicare Advantage in Sharkey County, Mississippi

568 people in Sharkey County, Mississippi were enrolled in Medicare Advantage in October 2026, 50.2% of 1,132 eligible beneficiaries (−0.8 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 49% of reported enrollment; 4 parent organizations have 11 or more members and the HHI is 4,412 (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 21 to 26.

50.2%MA penetration, October 2026
568MA enrollees
49%leading parent's share
17.6%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in Mississippi

Parent organizations in Sharkey County

Parent organizationMembersChange since October 2025Share
UnitedHealth Group, Inc.276+8248.8%
Humana Inc.253+4044.8%
Devoted Health, Inc.18new3.2%
CVS Health Corporation18−63.2%

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

Value-based care alongside MA

In PY 2024, 72 beneficiaries in Sharkey County were assigned to 9 Medicare Shared Savings Program ACOs, 17.6% of assignable Original Medicare beneficiaries. Together, roughly 59% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.