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Home / Hospitals / California / Corona / Corona Regional Medical Center
CAverage · score 51/100 · #130 of 293 in California

Corona Regional Medical Center

800 South Main Street, Corona, CA 92882 · Acute care hospital · Proprietary

CMS overall rating 3 of 5below median among California acute care hospitals
Mortality: 0 measures better than the national rate, 0 worse, of 6
Safety: 1 measure better than the national rate, 0 worse, of 5

Why Corona Regional Medical Center is graded C

Each metric below is percentile-ranked against California hospitals of the same type (acute care hospitals), then weighted. The score is the weighted sum; A ≥ 72, B ≥ 58, C ≥ 42, D ≥ 28, F below. Nothing here can be edited or paid for.

Corona Regional Medical Center at a Glance

C 51/100
CMS overall rating · weight 25Medicare's 1–5 star summary of mortality, safety, readmission, patient experience and timely care. Raw: 3 of 5.
45<small style="font-size:12px;color:var(--muted)">th pct</small>
Mortality · weight 25Net count of death-rate measures where the hospital is better than the national rate minus those where it is worse (heart attack, heart failure, pneumonia, stroke, CABG, COPD, surgical). Raw: 0 better, 0 worse of 6 measures (net +0).
38<small style="font-size:12px;color:var(--muted)">th pct</small>
Safety of care · weight 25Net count of safety measures better than the national rate minus worse (infections, complications, falls, pressure injuries). Raw: 1 better, 0 worse of 5 measures (net +1).
51<small style="font-size:12px;color:var(--muted)">th pct</small>
Readmission · weight 25Net count of unplanned-readmission measures better than the national rate minus worse. Raw: 1 better, 1 worse of 6 measures (net +0).
69<small style="font-size:12px;color:var(--muted)">th pct</small>
Patient experience and timely careCMS reports 15 patient-experience and 8 timely-and-effective-care measures for this hospital; they feed the CMS overall rating above rather than being graded separately.
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Data: CMS Care Compare, imported Sep 11, 2026 · graded Sep 11, 2026 · peer group: California, acute care hospitals · CMS record 050329 · How we grade.

Hospital details

Address800 South Main Street, Corona, CA 92882
Phone(951) 736-6240
CountyRIVERSIDE
TypeAcute Care Hospitals
OwnershipProprietary
Emergency servicesYes
Birthing-Friendly designationYes (CMS)

Higher-graded hospitals nearby

1

Alta Bates Summit Medical Center - Oakland, CA · Acute care hospital

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 8
ASee Grade
1

Sutter Roseville Medical Center - Roseville, CA · Acute care hospital

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 2 measures better than the national rate, 0 worse, of 7
ASee Grade
1

Scripps Memorial Hospital La Jolla - La Jolla, CA · Acute care hospital

  • CMS overall rating 5 of 5 — top 10% among California acute care hospitals
  • Mortality: 4 measures better than the national rate, 0 worse, of 8
ASee Grade

A grade is a shortlist tool, not medical advice. In an emergency go to the nearest emergency department. For planned care, ask about the specific procedure's volume and outcomes and check your insurer's network.