Medicare Advantage in Accomack County, Virginia
4,092 people in Accomack County, Virginia were enrolled in Medicare Advantage in October 2026, 39.4% of 10,374 eligible beneficiaries (+0.6 pts since October 2025). Humana Inc. is the largest parent organization with 44% of reported enrollment; 6 parent organizations have 11 or more members and the HHI is 3,239 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 581 members here are in plans that terminate or leave the county. MA plans offered go from 21 to 19.
Parent organizations in Accomack County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 1,772 | +44 | 43.8% |
| UnitedHealth Group, Inc. | 1,169 | +67 | 28.9% |
| CVS Health Corporation | 879 | +62 | 21.7% |
| Elevance Health, Inc. | 90 | +78 | 2.2% |
| CareFirst, Inc. | 68 | +8 | 1.7% |
| Sentara Health Care (SHC) | 66 | −130 | 1.6% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 3,760 beneficiaries in Accomack County were assigned to 59 Medicare Shared Savings Program ACOs, 77.8% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.