Medicare Advantage in Northumberland County, Virginia
1,698 people in Northumberland County, Virginia were enrolled in Medicare Advantage in October 2026, 32.8% of 5,178 eligible beneficiaries (+0.02 pts since October 2025). Humana Inc. is the largest parent organization with 36% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 2,621 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 239 members here are in plans that terminate or leave the county. MA plans offered go from 25 to 20.
Parent organizations in Northumberland County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 594 | +185 | 35.9% |
| CVS Health Corporation | 393 | +70 | 23.8% |
| UnitedHealth Group, Inc. | 369 | −10 | 22.3% |
| Elevance Health, Inc. | 268 | −183 | 16.2% |
| CareFirst, Inc. | 29 | −4 | 1.8% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 473 beneficiaries in Northumberland County were assigned to 34 Medicare Shared Savings Program ACOs, 17.4% of assignable Original Medicare beneficiaries. Together, roughly 44% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.