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Acute Care Hospital

Kaiser Foundation Hospital, Riverside

Also listed as: Riverside Medical Center

Riverside, California · Riverside County · Emergency services listed

  • 10800 Magnolia Avenue, Riverside, CA 92505 · Directions
  • (951) 353‑2000
  • Emergency room: yes
  • Medicare overall rating: 4 of 5 stars
  • Medicare payment reduction for hospital-acquired conditions (fiscal year 2026): no · Medicare payment programs
  • Hospital type: Acute Care Hospital · Ownership: Voluntary non-profit - Private

Kaiser Foundation Hospital, Riverside is an acute care hospital at 10800 Magnolia Avenue, Riverside, CA 92505. Phone: (951) 353-2000. It has an emergency department. Medicare overall rating: 4 of 5 stars (CMS, October 2026).

Data as of October 26, 2026. Source: CMS Hospital General Information and the hospital’s website (checked October 30, 2026).

Summary

Kaiser Foundation Hospital, Riverside is an acute care hospital in Riverside, California. Medicare data lists emergency services. CMS overall star rating: 4 of 5 stars. Its official website lists 30 services, specialties and programs. Medicare lists 361 affiliated clinicians. Source: CMS Hospital General Information, data updated 2026-10-26.

What is an acute care hospital?

A general hospital for short-term care: emergencies, surgery, illness and injury. Most patients stay a few days. More about hospital types

Call(951) 353‑2000 Directions Website Medicare profile
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Profile from official sources

Built from official Medicare (CMS) data and the hospital’s own website (checked 2026-10-30). Every service links to the page that lists it. Services change: call the hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

YesEmergency services
4 of 5 stars4 of 5 stars · Medicare rating
YesBirthing-friendly (CMS)
361Doctors and clinicians
30Services listed

Quick answers

Does Kaiser Foundation Hospital, Riverside have an emergency room?
Yes. Medicare (CMS) data lists emergency services at Kaiser Foundation Hospital, Riverside. In a medical emergency, call 911.
Where is Kaiser Foundation Hospital, Riverside?
10800 Magnolia Avenue, Riverside, CA 92505, in Riverside County, California.
What is the phone number of Kaiser Foundation Hospital, Riverside?
(951) 353-2000, as listed by Medicare (CMS).
What is the Medicare star rating of Kaiser Foundation Hospital, Riverside?
4 out of 5 stars in the CMS overall hospital quality rating (CMS data updated 2026-10-26).
Does Medicare reduce its payments to Kaiser Foundation Hospital, Riverside for hospital-acquired conditions?
No. For fiscal year 2026, CMS lists no Medicare payment reduction for Kaiser Foundation Hospital, Riverside under the Hospital-Acquired Condition Reduction Program (Total HAC Score: -0.0217; a lower score is better). It is an adjustment to what Medicare pays the hospital, not a charge to patients (CMS data released January 26, 2026).

Specialties and care areas[4][5]

Programs and centers[4][5]

  • Urgent Care
  • Cardiac Rehabilitation
  • Mammography
  • Complete Care Department

Emergency care (hospital website)[4][5]

Emergency roomYes
Open 24/7Yes

Visiting and practical information

Interpreters and languagesFree interpreter services, including sign language, 24/7 at all points of contact[4]

Recognition[4]

  • Birthing-Friendly Hospital (CMS)
  • California Children's Services (CCS) Approved Hospital

Doctors and clinicians (361)

361 doctors and other clinicians list Kaiser Foundation Hospital, Riverside as a hospital where they work, in Medicare's official clinician data (updated 2026-10-02). It is not a complete staff list.

Main specialties

Doctors with a page on this site (361)

And 337 more: the button below opens the full list.

Other emergency rooms nearby

Hospitals that list emergency services, by straight-line distance (not driving distance).

Find the closest emergency room to where you are →

Other hospitals near Riverside

All hospitals in Riverside · Hospitals in Riverside County · Hospitals near me

Nursing homes, hospice, home health and dialysis nearby

Medicare-certified providers within 25 miles, by straight-line distance. Hospice and home health care is given at home: their address is the office.

Nursing homes

All nursing homes in the state →

Hospice providers

All hospice providers in the state →

Home health agencies

All home health agencies in the state →

Dialysis facilities

All dialysis facilities in the state →

Outpatient surgery centers nearby

Medicare-certified ambulatory surgery centers within 25 miles, by straight-line distance.

All outpatient surgery centers in the state →

Community care nearby

Health centers, clinics, urgent care and pharmacies closest to this hospital, by straight-line distance, from official HRSA, Medicare and NPI Registry data. In a medical emergency, call 911.

Community health centers

Clinics and urgent care

Pharmacies

Assisted living nearby

Licensed homes from the official state license list, by straight-line distance.

About the Medicare star rating

CMS (the federal Medicare agency) gives many hospitals an overall rating from 1 to 5 stars, based on measures of mortality, safety, readmissions, patient experience and timely care. It is one piece of information: ask your doctor what matters for your care. See the full Medicare profile →

Medicare quality data

What Kaiser Foundation Hospital, Riverside reported to Medicare (CMS), the federal agency that publishes these results for hospitals nationwide. These are averages for many patients, not a prediction for any one person: ask your doctor what matters for your care. In a medical emergency, call 911.

What patients said (patient survey)

What this means: Patients who stayed overnight answered a national survey (HCAHPS) about their stay. More stars mean patients reported a better experience than at other hospitals. The percentages show how often patients gave the best answer, next to the national average.

Summary star rating (all survey topics) 3 of 5 stars
Overall rating of the hospital3 of 5 stars
Would recommend the hospital4 of 5 stars
Nurses communicated well3 of 5 stars
Doctors communicated well3 of 5 stars
Patients got help quickly from staff3 of 5 stars
Staff explained medicines2 of 5 stars
Information about recovery at home3 of 5 stars
Room and bathroom kept clean4 of 5 stars
Restfulness of Environment2 of 5 stars
Care Coordination3 of 5 stars
Symptoms After Stay3 of 5 stars
Rated the hospital 9 or 10 out of 1070%National average: 72%
Would definitely recommend the hospital71%National average: 71%
Nurses “always” communicated well77%National average: 80%
Doctors “always” communicated well78%National average: 80%
“Always” got help as soon as they wanted65%National average: 64%
Staff “always” explained medicines before giving them56%National average: 62%
Were given information about recovery at home86%National average: 86%
Room and bathroom “always” clean72%National average: 73%
Completed surveys442Response rate: 17%

Source: Patient survey (HCAHPS) - Hospital — CMS, released October 19, 2026; patients discharged January 2025 to December 2025.

Infections caught in the hospital

What this means: CMS compares the number of infections patients caught in this hospital with the number expected for a hospital like it. The number shown is that ratio: below 1 means fewer infections than expected, above 1 means more. “Better” or “worse” is shown only when the difference is clear in the data.

Central line bloodstream infections (CLABSI)0.777No different from the national benchmark
Catheter-associated urinary tract infections (CAUTI)1.818No different from the national benchmark
Surgical site infections after colon surgery0.85No different from the national benchmark
MRSA bloodstream infections0.214No different from the national benchmark
Clostridioides difficile (C. diff) intestinal infections0.698No different from the national benchmark
Not reported to MedicareSurgical site infections after abdominal hysterectomy

Source: Healthcare Associated Infections - Hospital — CMS, released October 19, 2026; data from January 2025 to December 2025.

Complications and deaths

What this means: Death rates are the share of patients who died within 30 days of going into the hospital for that condition, adjusted for how sick they were. PSI-90 combines several serious complications (a lower number is better). “No different from the national rate” is the most common result and means the hospital is in line with hospitals nationwide.

Deaths within 30 days: stroke patients13%
Serious complications (patient safety indicator PSI-90)0.98No different from the national rate
Not reported to MedicareDeaths within 30 days: coronary bypass surgery (CABG)
Too few cases to reportDeaths within 30 days: heart attack patients; Deaths within 30 days: heart failure patients; Deaths within 30 days: pneumonia patients; Deaths within 30 days: COPD patients; Complications after hip or knee replacement

Source: Complications and Deaths - Hospital — CMS, released October 20, 2026; data from July 2023 to June 2025.

Return visits to the hospital (readmissions)

What this means: The share of patients who had to be admitted to a hospital again within 30 days after going home, adjusted for how sick they were. A lower percentage is better.

Returned to any hospital within 30 days (all patients)15.4%
Readmitted within 30 days: heart attack14.6%
Readmitted within 30 days: heart failure19.9%
Readmitted within 30 days: pneumonia17.5%
Readmitted within 30 days: COPD20.4%
Not reported to MedicareReadmitted within 30 days: coronary bypass surgery
Too few cases to reportReadmitted within 30 days: hip or knee replacement

Source: Unplanned Hospital Visits - Hospital — CMS, released October 20, 2026; data from July 2024 to June 2025.

Emergency room times and sepsis care

What this means: ER time is the middle (median) time from arriving at the emergency room to leaving it; busier ERs usually have longer times, so the ER volume is shown too. Leaving before being seen: a lower percentage is better. Sepsis is a life-threatening reaction to an infection; a higher percentage means more patients got every recommended early step.

Sepsis patients who got all the recommended early care (SEP-1)78%National average: 66%
Not reported to MedicareAverage (median) time patients spent in the emergency room before leaving (OP-18b); Patients who left the emergency room before being seen (OP-22)

Source: Timely and Effective Care - Hospital — CMS, released October 19, 2026; data from January 2025 to December 2025.

See every measure on Medicare Care Compare →

Medicare payment programs

Medicare (CMS) uses these federal programs to adjust what it pays hospitals, based on quality, safety and cost results. This is a payment to the hospital for Medicare patients, not a price you pay, and not a prediction for any one person. Results for Kaiser Foundation Hospital, Riverside, fiscal year 2026 (October 2025 to September 2026).

Show the Medicare payment program results

Hospital-Acquired Condition Reduction Program

What this means: Medicare gives each hospital a Total HAC Score built from patient-safety complications and from infections caught in the hospital. The quarter of hospitals with the highest (worst) scores gets a reduction in its Medicare payments. A lower score is better.

CMS says: Hospitals with a Total HAC Score above the 75th percentile of the Total HAC Score distribution will be subject to a 1-percent payment reduction.

Medicare payment reduction, fiscal year 2026NoCMS lists no payment reduction for this hospital.
Total HAC Score-0.0217Lower is better. Hospitals above the 75th percentile of all scores get the reduction.

Source: Hospital-Acquired Condition (HAC) Reduction Program — CMS, released January 26, 2026; patient-safety data from July 2022 to June 2024 and infection data from January 2023 to December 2024.

Hospital Value-Based Purchasing Program

What this means: Medicare scores hospitals in four areas, each from 0 to 100, and combines them into a Total Performance Score from 0 to 100. A higher score means better results on these measures. Medicare uses the score to adjust what it pays the hospital.

CMS says: This program adjusts payments to hospitals under the Inpatient Prospective Payment System (IPPS) based on the quality of care they deliver.

Total Performance Score36.56 out of 100Median of the 2,455 hospitals in the program: 29.50
Person and community engagement (patient survey)43.00 out of 100
Safety (infections and sepsis care)56.67 out of 100
Efficiency and cost reduction (Medicare spending)10.00 out of 100
No result publishedClinical outcomes (deaths and complications) (not reported, or too few cases)

Source: Hospital Value-Based Purchasing (HVBP) - Total Performance Score — CMS, released January 26, 2026, fiscal year 2026. Program description: The Hospital Value-Based Purchasing (VBP) Program — CMS, page last modified September 10, 2024.

Medicare spending per patient (MSPB)

What this means: This compares what Medicare spent on a hospital stay, counting the 3 days before it and the 30 days after, with the national median hospital, after adjusting for the patient’s age and health and for local prices. A ratio of 1.00 is the national median hospital; below 1.00 means Medicare spent less, above 1.00 means more. It measures the cost to Medicare, not the quality of care.

CMS says: The Medicare Spending Per Beneficiary (MSPB) Measure shows whether Medicare spends more, less, or about the same for an episode of care (episode) at a specific hospital compared to all hospitals nationally.

Medicare spending per patient, ratio0.97Below the national median hospital (1.00): Medicare spent less

Source: Medicare Spending Per Beneficiary - Hospital — CMS, released October 19, 2026; data from January 2024 to December 2024.

No result for this hospital: Hospital Readmissions Reduction Program. This is normal when a hospital is paid under another Medicare system (for example critical access, children’s or psychiatric hospitals), is not in the program that year, or has too few cases.

ER wait times and Medicare ratings nearby

How this hospital compares with others in the area, ranked only by official Medicare (CMS) numbers.

ER wait times in RiversideBest hospitals in Riverside

Prices

We have not been able to read a price file for Kaiser Foundation Hospital, Riverside yet. Every US hospital must publish its standard charges online (federal price transparency rule): look for “price transparency” or “standard charges” on the hospital’s website, or call the hospital and ask for an estimate. In a medical emergency, call 911.

Hospital information

Hospital typeAcute Care Hospital
Address10800 Magnolia Avenue, Riverside, CA 92505
CountyRiverside County
StateCalifornia
Phone(951) 353‑2000
Emergency servicesYes
OwnershipVoluntary non-profit - Private
Medicare overall rating4 of 5 stars
Birthing-friendly designationYes (meets CMS criteria)
CMS Certification Number050686
Name in Medicare recordsKAISER FOUNDATION HOSPITAL, RIVERSIDE
Profile levelMedicare data + hospital website
Name on the hospital’s websiteRiverside Medical Center
Official websitehealthy.kaiserpermanente.org
CorrectionsReport an error or suggest an update →

Sources

  1. Hospital General Information — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-26, retrieved 2026-11-13
  2. Medicare Care Compare — official Medicare profile of this hospital
  3. U.S. Census Bureau Geocoder — map position used for distances

From the hospital’s website

Numbers match the citations above. Checked 2026-10-30.

  1. Riverside Medical Center | Kaiser Permanente — healthy.kaiserpermanente.org
  2. Departments & Specialties at Riverside Medical Center — healthy.kaiserpermanente.org