Medicare Advantage in Greenwood County, South Carolina
8,508 people in Greenwood County, South Carolina were enrolled in Medicare Advantage in October 2026, 48.0% of 17,726 eligible beneficiaries (−0.02 pts since October 2025). Humana Inc. is the largest parent organization with 38% of reported enrollment; 10 parent organizations have 11 or more members and the HHI is 2,490 (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.
Parent organizations in Greenwood County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 3,229 | +429 | 38.1% |
| Devoted Health, Inc. | 1,994 | +830 | 23.5% |
| UnitedHealth Group, Inc. | 1,415 | −649 | 16.7% |
| Centene Corporation | 1,022 | −238 | 12.1% |
| CVS Health Corporation | 636 | −157 | 7.5% |
| Independence Health Group, Inc. | 60 | −14 | 0.7% |
| Missouri Healthcare Advisors, LLC | 41 | +13 | 0.5% |
| Molina Healthcare, Inc. | 31 | −5 | 0.4% |
| Elevance Health, Inc. | 24 | +2 | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 18 | +1 | 0.2% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 5,595 beneficiaries in Greenwood County were assigned to 42 Medicare Shared Savings Program ACOs, 73.7% of assignable Original Medicare beneficiaries. Together, roughly 86% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.