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MSSPA4641 · PY2024 · serves 2 states
Mass General Brigham ACO, LLC
★★★★☆
quality 82.8/100 (XSPAN star)
Lives (aligned)
147,747
CMS revenue (total spend)
$2.2B
Benchmark
$2.2B
Shared savings earned
$39.2M
paid to the ACO by CMS (PY2024)
Savings generated
$53.3M
gross vs benchmark
Per-capita spend
$15,000
Acute admits /1k
292
ED visits /1k
658
30-day readmit rate
15.5%
Service area MA, NHOperator Sharon Wolf
Shared savings you retain / yr
$78.1M
3.6% of CMS revenue · keep 55%
FFS care-mgmt revenue / yr
$42.9M
2.0% of CMS revenue
Combined XSpan impact / yr
$121M
5.6% of CMS revenue
1 · Reduce avoidable utilization
From this ACO's own PY2024 utilization & unit costs. Gross avoidable cost: $120.1M/yr.
Avoidable acute admits reduced15%
$79.8M/yr
30-day readmissions reduced20%
on 15.46% measured rate$19.5M/yr
ED visits deflected10%
$12.4M/yr
SNF admits reduced8%
$8.4M/yr
ED cost per visit$1,300
2 · How MSSP pays you
FFS shared savings + separately-billable care-management codes.
Shared-savings rate you keep55%
BASIC 40% → ENHANCED 75%$66.1M/yr
Better care → higher rating → bonus
This ACO: 4★ today. Improving quality lifts your captured shared-savings share.
Extra share from quality gains+10 pts
$12M/yr
Care-management codes
$22.4M
Enrollment (of eligible)30%
$/member/month$62
~30,140 enrolled (68% eligible × 30%). Requires 2+ chronic conditions (~68% of Medicare FFS). Billable alongside RPM.
$20.5M
Enrollment (of eligible)25%
$/member/month$91
~18,468 enrolled (50% eligible × 25%). Device supply + 20-min treatment mgmt. Concurrent with CCM allowed.
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CY2024 national-average code rates — editable. In MSSP, care-management billing also counts toward ACO expenditures; net effect depends on your model.