Medicare Advantage in Spartanburg County, South Carolina
42,060 people in Spartanburg County, South Carolina were enrolled in Medicare Advantage in October 2026, 54.3% of 77,408 eligible beneficiaries (+0.5 pts since October 2025). Humana Inc. is the largest parent organization with 48% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,791 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 32 members here are in plans that terminate or leave the county. MA plans offered go from 50 to 51.
Parent organizations in Spartanburg County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 20,018 | +3,935 | 47.8% |
| UnitedHealth Group, Inc. | 5,853 | −2,113 | 14.0% |
| Devoted Health, Inc. | 5,243 | +3,521 | 12.5% |
| Health Care Service Corporation | 3,281 | +467 | 7.8% |
| CVS Health Corporation | 3,077 | −4,345 | 7.3% |
| Centene Corporation | 1,944 | −215 | 4.6% |
| BlueCross BlueShield of South Carolina (BCBSSC) | 1,841 | +503 | 4.4% |
| Independence Health Group, Inc. | 269 | −66 | 0.6% |
| Molina Healthcare, Inc. | 205 | −24 | 0.5% |
| Elevance Health, Inc. | 107 | +14 | 0.3% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 63 | −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, 18,617 beneficiaries in Spartanburg County were assigned to 138 Medicare Shared Savings Program ACOs, 70.0% 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.