MSSP ACO Explorer / All ACOs / Summa Accountable Care Organization
Summa Accountable Care Organization
Summa Accountable Care Organization (A1063) is a Medicare Shared Savings Program ACO based in Ohio, in the BASIC track, Level E. In PY 2024 it had 8,111 assigned beneficiaries, spent 5.8% below its benchmark, and earned $2.5M in shared savings, with a quality score of 86.2. It appears in 12 performance years of CMS results, from 2013 to 2024.
5.8%savings rate, PY 2024 (median ACO 4.2%)
$2.5Mearned shared savings, PY 2024
86.2quality score, PY 2024 (median 83.1)
8,111assigned beneficiaries, PY 2024
Results by performance year
| Year | Track | Assigned | Savings rate | Benchmark minus spending | Earned savings or losses | Quality |
|---|---|---|---|---|---|---|
| 2024 | BASIC E | 8,111 | 5.8% | $5.1M | $2.5M | 86.2 |
| 2023 | BASIC E | 8,340 | 4.9% | $4.2M | $2.1M | 83.9 |
| 2022 | BASIC E | 8,792 | 2.8% | $2.4M | $1.2M | 82.8 |
| 2021 | BASIC E | 14,068 | 5.7% | $7.7M | $3.8M | 91.0 |
| 2020 | BASIC E | 18,447 | 6.9% | $11.7M | $5.7M | 96.9 |
| 2019 July to December 2019 (6 months) | BASIC E | 19,578 | 2.5% | $2.4M | $1.2M | 97.7 |
| 2019 January to June 2019 (6 months) | Track 1 | 19,929 | 5.6% | $5.6M | $2.8M | 97.7 |
| 2018 | Track 1 | 19,532 | 5.3% | $10.0M | $4.5M | 92.2 |
| 2017 | Track 1 | 20,195 | 1.2% | $2.2M | $0 | 90.4 |
| 2016 | Track 1 | 20,620 | 2.0% | $3.6M | $0 | 90.4 |
| 2015 | Track 1 | 27,205 | 2.5% | $6.6M | $3.1M | 95.0 |
| 2014 | Track 1 | 29,846 | 3.7% | $10.2M | $4.5M | 89.0 |
| 2013 July 2012 to December 2013 (18 months) | Track 1 | 25,150 | 3.8% | $11.8M | $5.8M | n/a |
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, Summa Accountable Care Organization had assigned beneficiaries in 100 counties. The ten largest:
| County | Assigned beneficiaries | Share of the ACO |
|---|---|---|
| Summit, OH | 3,649 | 44.7% |
| Medina, OH | 1,461 | 17.9% |
| Stark, OH | 1,319 | 16.2% |
| Portage, OH | 647 | 7.9% |
| Wayne, OH | 458 | 5.6% |
| Carroll, OH | 108 | 1.3% |
| Columbiana, OH | 87 | 1.1% |
| Cuyahoga, OH | 66 | 0.8% |
| Mahoning, OH | 61 | 0.7% |
| Trumbull, OH | 41 | 0.5% |
CMS suppresses county counts of 1 to 10. Open the full footprint map in the explorer.