TRYNYTYhealth:enablement
MA Enrollment Explorer / South Carolina / Lee County

Medicare Advantage in Lee County, South Carolina

2,538 people in Lee County, South Carolina were enrolled in Medicare Advantage in October 2026, 56.3% of 4,504 eligible beneficiaries (+0.3 pts since October 2025). UnitedHealth Group, Inc. is the largest parent organization with 46% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,537 (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 34 to 36.

56.3%MA penetration, October 2026
2,538MA enrollees
46%leading parent's share
13.5%MSSP ACO share of Original Medicare, PY 2024
Open the county on the market mapMedicare Advantage in South Carolina

Parent organizations in Lee County

Parent organizationMembersChange since October 2025Share
UnitedHealth Group, Inc.1,146−13645.6%
Humana Inc.904+20036.0%
CVS Health Corporation284−4911.3%
Centene Corporation134+205.3%
Molina Healthcare, Inc.25+11.0%
Independence Health Group, Inc.18−100.7%

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

Value-based care alongside MA

In PY 2024, 204 beneficiaries in Lee County were assigned to 15 Medicare Shared Savings Program ACOs, 13.5% of assignable Original Medicare beneficiaries. Together, roughly 62% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.