MSSP ACO Explorer / All ACOs / OSF Healthcare System
OSF Healthcare System
OSF Healthcare System (A3289) is a Medicare Shared Savings Program ACO based in Illinois, in the ENHANCED track. In PY 2024 it had 46,924 assigned beneficiaries, spent 8.1% below its benchmark, and earned $32.3M in shared savings, with a quality score of 77.4. It appears in 8 performance years of CMS results, from 2017 to 2024.
8.1%savings rate, PY 2024 (median ACO 4.2%)
$32.3Mearned shared savings, PY 2024
77.4quality score, PY 2024 (median 83.1)
46,924assigned beneficiaries, PY 2024
Results by performance year
| Year | Track | Assigned | Savings rate | Benchmark minus spending | Earned savings or losses | Quality |
|---|---|---|---|---|---|---|
| 2024 | ENHANCED | 46,924 | 8.1% | $44.0M | $32.3M | 77.4 |
| 2023 | ENHANCED | 45,007 | 8.3% | $39.8M | $29.2M | 83.9 |
| 2022 | ENHANCED | 44,741 | 7.6% | $35.3M | $26.0M | 80.3 |
| 2021 | ENHANCED | 44,474 | 6.4% | $28.1M | $20.6M | 91.0 |
| 2020 | ENHANCED | 45,220 | 5.6% | $24.4M | $17.9M | 98.1 |
| 2019 | Track 3 | 45,276 | 2.7% | $12.6M | $8.7M | 92.2 |
| 2018 | Track 3 | 45,153 | -0.3% | -$1.5M | $0 | 93.2 |
| 2017 | Track 3 | 43,148 | -0.0% | -$171K | $0 | 100.0 |
Savings rate is benchmark minus expenditures over benchmark, as CMS defines it. Quality scores before and after PY 2021 are on different scales.
Where its beneficiaries live
In PY 2024, OSF Healthcare System had assigned beneficiaries in 352 counties. The ten largest:
| County | Assigned beneficiaries | Share of the ACO |
|---|---|---|
| LaSalle, IL | 7,717 | 16.4% |
| Peoria, IL | 5,274 | 11.2% |
| Tazewell, IL | 4,315 | 9.2% |
| Winnebago, IL | 3,921 | 8.3% |
| McLean, IL | 3,808 | 8.1% |
| Knox, IL | 3,575 | 7.6% |
| Livingston, IL | 2,300 | 4.9% |
| Cook, IL | 2,278 | 4.8% |
| Delta, MI | 1,733 | 3.7% |
| Woodford, IL | 1,546 | 3.3% |
CMS suppresses county counts of 1 to 10. Open the full footprint map in the explorer.