Kaiser Foundation Hospital Fontana/Ontario

2Location

Fontana, CA

3Type

Minor teaching · 438 beds · Nonprofit · Urban

4Payment adjustment factor, FY2027

0.9979

CMS’s value. A factor below one is a cut.

5Reduction

0.21%

cut One minus the factor, as a percent.

Readmissions, estimated FY2026 Estimate

−$3K

cut

The net across all three programs adds each program’s estimated dollars for FY2026, the latest year they share. Readmissions’ part can differ from the FY2027 values on this page.

This hospital across the programs

What CMS measured, FY2027

The conditions CMS measured for this hospital in FY2027, with the excess readmission ratio as CMS published it and the median of the hospital’s peer group.
Condition	Eligible discharges	Excess readmission ratio	Peer group median	Counted by CMS
Acute myocardial infarction (AMI)	429	0.9441 at or below 1	0.9963	No
Chronic obstructive pulmonary disease (COPD)	403	1.0823 above 1	0.9976	Yes
Heart failure (HF)	915	1.0199 above 1	1.0027	Yes
Pneumonia (PN)	929	1.1097 above 1	0.9941	Yes
Coronary artery bypass graft surgery (CABG)	199	0.9497 at or below 1	1.0056	No
Elective total hip or knee arthroplasty (THA/TKA)	51	0.8682 at or below 1	0.9914	No

A ratio above 1 means more readmissions than expected for the hospital’s patients. CMS counts a condition only when it has enough eligible discharges and its ratio is above the median of the hospital’s peer group, so a counted ratio can sit at or below 1. A counted condition adds to the hospital’s reduction, which can round to none.

Full explorer on Thirty Day Readmissions (opens in a new tab)

Source: CMS’s FY2027 Hospital Readmissions Reduction Program files, as pinned by Thirty Day Readmissions. CMS’s values appear as CMS published them; dollars are this site’s estimates.

A cut is a program’s formula at work, not a verdict on a hospital’s care. Nothing on this page ranks hospitals.