Medicare Advantage in Jefferson County, Pennsylvania
7,337 people in Jefferson County, Pennsylvania were enrolled in Medicare Advantage in October 2026, 60.8% of 12,067 eligible beneficiaries (−0.9 pts since October 2025). Highmark Health is the largest parent organization with 43% of reported enrollment; 11 parent organizations have 11 or more members and the HHI is 2,875 (highly concentrated). HRSA classifies the county as fully rural. For 2027, 179 members here are in plans that terminate or leave the county. MA plans offered go from 54 to 51.
Parent organizations in Jefferson County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Highmark Health | 3,169 | +1,724 | 43.4% |
| CVS Health Corporation | 1,862 | +504 | 25.5% |
| UPMC Health System | 1,225 | −2,652 | 16.8% |
| UnitedHealth Group, Inc. | 464 | +165 | 6.4% |
| Humana Inc. | 320 | +144 | 4.4% |
| Devoted Health, Inc. | 93 | +45 | 1.3% |
| Risant Health, Inc. | 57 | +14 | 0.8% |
| Centene Corporation | 51 | −8 | 0.7% |
| One Senior Care, Inc. | 33 | +3 | 0.5% |
| UMWA Health and Retirement Funds | 17 | −1 | 0.2% |
| Elevance Health, Inc. | 15 | +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, 910 beneficiaries in Jefferson County were assigned to 27 Medicare Shared Savings Program ACOs, 23.8% of assignable Original Medicare beneficiaries. Together, roughly 70% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.