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Top 10 Performing ACOs in Massachusetts (2024)
This page summarizes MSSP performance for ACOs with notable Massachusetts presence.
Home / Data Tools / MSSP Results / MSSP State Rankings / Massachusetts
Published: February 24, 2026. Coverage year: 2024 performance.
Data sources: mssp results and mssp size by county.
Top 10 Table
| Rank | ACO Name | Track | Total Benes | MA Benes | MA Counties | MA % | Earned Savings | Savings Rate | Quality |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mass General Brigham ACO, LLC | EN | 147,747 | 127,228 | 14 | 86.1% | $37.8M | 2.3% | 82.8 |
| 2 | CareMax National Care Network, LLC | EN | 73,142 | 49,778 | 14 | 68.1% | $49.9M | 6.5% | 77.0 |
| 3 | UMASS Memorial Accountable Care Organization, INC. | B | 42,860 | 42,026 | 13 | 98.1% | $11.9M | 4.9% | 83.0 |
| 4 | Beth Israel Deaconess Physician Organization, LLC | EN | 44,401 | 40,759 | 14 | 91.8% | $0 | 0.2% | 60.6 |
| 5 | Lahey Clinical Performance Accountable Care Organization, LLC | B | 40,862 | 37,795 | 13 | 92.5% | $0 | 2.0% | 76.6 |
| 6 | Wellforce ACO, LLC | EN | 38,123 | 36,792 | 14 | 96.5% | $9.8M | 2.3% | 87.6 |
| 7 | Atrius Health, Inc. | EN | 37,919 | 30,524 | 14 | 80.5% | $28.5M | 7.8% | 73.4 |
| 8 | Pioneer Valley Accountable Care, LLC | EN | 28,842 | 28,100 | 14 | 97.4% | $10.5M | 3.5% | 83.4 |
| 9 | Caravan Health ACO 50 LLC | EN | 126,751 | 17,021 | 12 | 13.4% | $0 | 1.4% | 84.3 |
| 10 | Southcoast Accountable Care Organization, LLC | E | 18,009 | 14,948 | 12 | 83.0% | $4.6M | 3.3% | 89.1 |
Ranking approach: rank by state beneficiary footprint, with MSSP financial and quality fields appended from 2024 performance files.
Method note: County data lags results by 1 year, so the state % column could be over 100%.
Related Links
- Previous state: Maryland
- Next state: Michigan
- All 51 MSSP state pages
- MSSP Results interactive dashboard
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