HAC Penalty Risk Auditor
FY2026 · structural fragility of Total HAC Scores
Hospital audit
NORTHWESTERN MEDICINE MCHENRY
IL · Facility ID 140116 · FY2026
Total HAC Score
-0.5521
Percentile
17.5th
Displayed status
No reductionFrom CMS Payment Reduction column (file).
Score vs threshold (0.3792)
Hospital score -0.5521. Penalty threshold 0.3792. Distribution of 2929 scored hospitals.
Data completeness
Reported on 6 of 6. Missing measures show N/A with the CMS footnote; footnote 18 values are imputed worst-case, not measured performance.
- PSI-90z -0.853
- CLABSIz 0.113
- CAUTIz -0.795
- SSIz -0.119
- CDIz -0.893
- MRSAz -0.765
Fragility
Each reported measure moves the score by 0.1667 points.
| Measure | Current Z | Score @ floor | Score @ cap | Abs swing |
|---|---|---|---|---|
| PSI-90controls fate | -0.8527 | -0.6572 | 0.0086 | 0.6657 |
| CAUTI | -0.7955 | -0.6392 | -0.0218 | 0.6175 |
| MRSA | -0.7655 | -0.6673 | -0.0536 | 0.6137 |
| CDI | -0.8930 | -0.6469 | -0.0377 | 0.6092 |
| CLABSI | 0.1130 | -0.8053 | -0.1975 | 0.6078 |
| SSI | -0.1186 | -0.7750 | -0.1703 | 0.6047 |
Swing is a mechanics illustration: replace one reported Z with that measure’s observed floor or cap while holding others fixed. Ranked by absolute swing.
Peer context
Percentile within IL (112 scored): 15.6th
Hospital score -0.5521. Penalty threshold 0.3792. Distribution of 112 scored hospitals.
Percentile among hospitals with 6 reported measures (1940 scored): 11.4th
Hospital score -0.5521. Penalty threshold 0.3792. Distribution of 1940 scored hospitals.
Plain-language verdict
As scored, the CMS file lists no payment reduction (Total HAC Score -0.5521; threshold 0.3792).
Reported on 6 of 6 measures; each reported measure moves the equal-weighted score by 0.1667 points.
Describes scoring mechanics only. Not medical or legal advice. Any “would / would not” language is an illustration against the published threshold, not a CMS prediction.