Medicare Advantage in Dorchester County, Maryland
2,421 people in Dorchester County, Maryland were enrolled in Medicare Advantage in October 2026, 26.4% of 9,156 eligible beneficiaries (+0.8 pts since October 2025). CareFirst, Inc. is the largest parent organization with 36% of reported enrollment; 5 parent organizations have 11 or more members and the HHI is 2,829 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 601 members here are in plans that terminate or leave the county. MA plans offered go from 12 to 10.
Parent organizations in Dorchester County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| CareFirst, Inc. | 853 | +165 | 35.9% |
| Humana Inc. | 769 | +79 | 32.3% |
| LifeBridge Health, Inc. | 494 | +18 | 20.8% |
| UnitedHealth Group, Inc. | 167 | −132 | 7.0% |
| CVS Health Corporation | 95 | −7 | 4.0% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 2,283 beneficiaries in Dorchester County were assigned to 37 Medicare Shared Savings Program ACOs, 42.4% of assignable Original Medicare beneficiaries. Together, roughly 58% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.