HAC Penalty Simulator
FY2026 · counterfactual measure changes (partial-equilibrium)
Counterfactual simulator
MASSACHUSETTS GENERAL HOSPITAL
MA · Facility ID 220071 · FY2026
Total HAC Score
0.1843
Percentile
63.8th
Displayed status
No reductionFrom CMS Payment Reduction column (file).
Score vs threshold (0.3792) — simulated position
Hospital score 0.1843. Penalty threshold 0.3792. Distribution of 2929 scored hospitals.
Live result
Equal-weight mean of edited reported Z · threshold 0.3792(strict >) · simulated/illustrative
Simulated Total HAC
0.1843
Δ from file score
+0.0000
File 0.1843
Measure controls
Drag reported SIRs (PSI-90: Composite Value). Z updates live via the empirical map, clamped to each measure's floor/cap.
- Composite Value 0.881Z file -0.751 → sim -0.7510.273.32
- SIR 0.504Z file -0.237 → sim -0.2370.007.96
- SIR 0.595Z file 0.116 → sim 0.1160.005.52
- SIR 0.805Z file -0.077 → sim -0.0770.004.79
- SIR 0.892Z file 1.992 → sim 1.9920.003.32
- SIR 0.728Z file 0.064 → sim 0.0640.004.41
Solver
Smallest change to clear (or cushion before crossing) the 0.3792 threshold — holding other measures fixed. Simulated/illustrative.
Insufficient data to score — solver unavailable.