Medicare Advantage in Armstrong County, Pennsylvania
14,168 people in Armstrong County, Pennsylvania were enrolled in Medicare Advantage in October 2026, 75.7% of 18,723 eligible beneficiaries (−0.5 pts since October 2025). Highmark Health is the largest parent organization with 43% of reported enrollment; 13 parent organizations have 11 or more members and the HHI is 2,925 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 499 members here are in plans that terminate or leave the county. MA plans offered go from 61 to 58.
Parent organizations in Armstrong County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Highmark Health | 6,039 | +179 | 42.7% |
| UPMC Health System | 3,344 | −40 | 23.7% |
| CVS Health Corporation | 3,206 | −88 | 22.7% |
| UnitedHealth Group, Inc. | 638 | +58 | 4.5% |
| Humana Inc. | 244 | +53 | 1.7% |
| UMWA Health and Retirement Funds | 217 | −6 | 1.5% |
| Lutheran SeniorLife | 82 | −2 | 0.6% |
| Devoted Health, Inc. | 81 | +42 | 0.6% |
| Rifkin Managed Care Holding, LLC | 74 | +6 | 0.5% |
| Centene Corporation | 70 | −8 | 0.5% |
| Health Care Service Corporation | 65 | +10 | 0.5% |
| Elevance Health, Inc. | 55 | +2 | 0.4% |
| Independence Health Group, Inc. | 23 | −17 | 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, 1,717 beneficiaries in Armstrong County were assigned to 24 Medicare Shared Savings Program ACOs, 54.6% of assignable Original Medicare beneficiaries. Together, roughly 89% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.