Medicare Advantage in Butler County, Pennsylvania
35,938 people in Butler County, Pennsylvania were enrolled in Medicare Advantage in October 2026, 69.6% of 51,664 eligible beneficiaries (−0.2 pts since October 2025). Highmark Health is the largest parent organization with 32% of reported enrollment; 14 parent organizations have 11 or more members and the HHI is 2,474 (highly concentrated). HRSA classifies the county as partly rural. For 2027, 6,056 members here are in plans that terminate or leave the county. MA plans offered go from 62 to 52.
Parent organizations in Butler County
| Parent organization | Members | Change since October 2025 | Share |
|---|---|---|---|
| Highmark Health | 11,659 | +845 | 32.5% |
| CVS Health Corporation | 9,570 | −121 | 26.7% |
| UPMC Health System | 8,957 | +12 | 25.0% |
| UnitedHealth Group, Inc. | 2,988 | −181 | 8.3% |
| Humana Inc. | 1,007 | +151 | 2.8% |
| Elevance Health, Inc. | 937 | +60 | 2.6% |
| Health Care Service Corporation | 230 | +42 | 0.6% |
| Lutheran SeniorLife | 165 | +14 | 0.5% |
| Centene Corporation | 118 | −31 | 0.3% |
| Devoted Health, Inc. | 100 | new | 0.3% |
| Rifkin Managed Care Holding, LLC | 71 | +11 | 0.2% |
| Independence Health Group, Inc. | 44 | −24 | 0.1% |
| UMWA Health and Retirement Funds | 33 | −2 | under 0.1% |
| Blue Cross Blue Shield of Michigan Mutual Ins. Co. | 13 | +2 | under 0.1% |
CMS suppresses county and contract counts of 10 or fewer; shares are of reported enrollment.
Value-based care alongside MA
In PY 2024, 6,051 beneficiaries in Butler County were assigned to 79 Medicare Shared Savings Program ACOs, 57.4% of assignable Original Medicare beneficiaries. Together, roughly 87% of all Medicare beneficiaries in the county are in Medicare Advantage or an MSSP ACO. See the ACOs in the MSSP Explorer.