Medicare Advantage in James City, Virginia
7,534 people in James City, Virginia were enrolled in Medicare Advantage in October 2026, 30.3% of 24,893 eligible beneficiaries (−0.4 pts since October 2025). Humana Inc. is the largest parent organization with 38% of reported enrollment; 8 parent organizations have 11 or more members and the HHI is 2,773 (highly concentrated). For 2027, 63 members here are in plans that terminate or leave the county. MA plans offered go from 34 to 36.
Parent organizations in James City
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Humana Inc. | 2,818 | +1,152 | 37.7% |
| UnitedHealth Group, Inc. | 2,185 | +172 | 29.2% |
| Elevance Health, Inc. | 1,292 | −570 | 17.3% |
| CVS Health Corporation | 1,053 | +14 | 14.1% |
| Sentara Health Care (SHC) | 74 | −707 | 1.0% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 22 | 0 | 0.3% |
| Highmark Health | 19 | 0 | 0.3% |
| CareFirst, Inc. | 14 | +3 | 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, 7,470 beneficiaries in James City were assigned to 109 Medicare Shared Savings Program ACOs, 51.1% of assignable Original Medicare beneficiaries. Together, roughly 66% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.