Statistical Profile — UMASS MEMORIAL MEDICAL CENTER
CCN 220163 | WORCESTER, MA | 6 outlier flags
🛡️ Public data only — no PHI permitted on this instance.
657
Beds
$1.90B
Net Revenue
-23.6%
Op Margin
100.7%
Occupancy
6
Outlier Flags
Statistical Outliers (6)
Metrics where this hospital is >2 standard deviations from the national mean. Investigate in diligence — could signal operational issues or data quality problems.
- Beds: +2.9σ above national mean
- Net Patient Revenue: +3.6σ above national mean
- Operating Expenses: +4.4σ above national mean
- Net Income: -3.0σ below national mean
- Gross Patient Revenue: +2.9σ above national mean
- Total Patient Days: +4.1σ above national mean
Statistical Profile — All Variables
Each metric compared to national (n=6,123) and MA (n=99) peers. Z-score shows standard deviations from national mean.
| Metric | Hospital | Nat'l Median | MA Median | Z-Score | Nat'l %ile | State %ile |
|---|---|---|---|---|---|---|
| Beds | 657 | 63 | 125 | +2.87σ | P98 ▲ | P94 ▲ |
| Net Patient Revenue | $1.90B | $59.7M | $149.8M | +3.59σ | P99 ▲ | P97 ▲ |
| Operating Expenses | $2.34B | $62.7M | $150.2M | +4.36σ | P99 ▲ | P96 ▲ |
| Net Income | $-447.0M | $-2.1M | $-15.4M | -3.02σ | P1 ▼ | P6 ▼ |
| Gross Patient Revenue | $6.43B | $186.6M | $360.1M | +2.91σ | P98 ▲ | P97 ▲ |
| Total Patient Days | 241,442 | 12,073 | 32,860 | +4.08σ | P99 ▲ | P97 ▲ |
| Medicare Day % | 29.7% | 30.9% | 33.5% | -0.21σ | P47 | P34 |
| Medicaid Day % | 18.5% | 5.1% | 9.4% | +0.71σ | P85 | P79 |
| Operating Margin | -23.6% | -4.8% | -12.2% | -0.85σ | P17 | P27 |
| Revenue per Bed | $2.9M | $1.2M | $1.4M | +0.73σ | P90 ▲ | P88 |
| Occupancy Rate | 100.7% | 53.7% | 70.6% | +1.92σ | P100 ▲ | P97 ▲ |
| Commercial Payer % | 51.8% | 61.2% | 53.7% | -0.36σ | P34 | P41 |
| Net-to-Gross Ratio | 29.5% | 33.3% | 43.6% | -0.43σ | P41 | P9 ▼ |
| Expense per Bed | $3.6M | $1.2M | $1.5M | +0.83σ | P94 ▲ | P90 |
| Revenue per Patient Day | 7,859 | 7,054 | 5,549 | -0.05σ | P55 | P73 |
| Payer Diversity Index | 0.609 | 0.473 | 0.530 | +1.21σ | P94 ▲ | P91 ▲ |
Multi-Variable Regression Residuals
For each key metric, the national regression model predicts a value. The residual shows how much this hospital over/under-performs after controlling for all other variables.
| Target | Model R² | Actual | Predicted | Residual |
|---|---|---|---|---|
| Net Patient Revenue | 74.0% | $1.90B | $1.97B | -0.30σ |
| Operating Margin | 2.1% | -0.2356 | 0.0303 | -1.40σ |
| Occupancy Rate | 44.3% | 1.0068 | 1.4385 | -2.37σ |
| Revenue Per Bed | 2.6% | $2.9M | $3.5M | -0.30σ |
| Net To Gross Ratio | 22.4% | 0.2950 | 0.2867 | +0.05σ |