MSSP ACO Explorer / All ACOs / C3 MSSP LLC
C3 MSSP LLC
C3 MSSP LLC (A5344) is a Medicare Shared Savings Program ACO based in California, in the BASIC track, Level A. In PY 2024 it had 23,881 assigned beneficiaries, spent 8.2% below its benchmark, and earned $10.4M in shared savings, with a quality score of 70.8. It appears in 1 performance year of CMS results, from 2024 to 2024.
8.2%savings rate, PY 2024 (median ACO 4.2%)
$10.4Mearned shared savings, PY 2024
70.8quality score, PY 2024 (median 83.1)
23,881assigned beneficiaries, PY 2024
Results by performance year
| Year | Track | Assigned | Savings rate | Benchmark minus spending | Earned savings or losses | Quality |
|---|---|---|---|---|---|---|
| 2024 | BASIC A | 23,881 | 8.2% | $26.5M | $10.4M | 70.8 |
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, C3 MSSP LLC had assigned beneficiaries in 247 counties. The ten largest:
| County | Assigned beneficiaries | Share of the ACO |
|---|---|---|
| Alameda, CA | 10,651 | 44.6% |
| District of Columbia, DC | 3,255 | 13.6% |
| Contra Costa, CA | 1,930 | 8.1% |
| Essex, MA | 1,606 | 6.7% |
| Solano, CA | 863 | 3.6% |
| New London, CT | 468 | 2.0% |
| Santa Clara, CA | 395 | 1.7% |
| Hartford, CT | 387 | 1.6% |
| New Haven, CT | 363 | 1.5% |
| Prince George's, MD | 338 | 1.4% |
CMS suppresses county counts of 1 to 10. Open the full footprint map in the explorer.