MARINHEALTH MEDICAL CENTER
250 BON AIR ROAD, GREENBRAE, CA 94904
How This Hospital Compares
CMS star rating compared across three benchmarks
How CMS Calculates the Star Rating
Overall star is a weighted average of 5 quality groups
Source: CMS Hospital Quality Initiative. Weights: Mortality 22% · Safety 22% · Readmission 22% · Patient Experience 22% · Timely Care 12%.
Patient Experience (HCAHPS Survey)
Based on standardized surveys sent to random patients after discharge
Mortality & Outcomes
30-day mortality rates — percentage of patients who died within 30 days of admission
Percentage of COPD (chronic lung disease) patients who died within 30 days of hospitalization.
Percentage of heart attack patients who died within 30 days of admission. Lower is better — fewer deaths means better care.
Percentage of heart failure patients who died within 30 days. A lower number means more patients survived.
Percentage of pneumonia patients who died within 30 days. Reflects how well the hospital treats serious lung infections.
Percentage of stroke patients who died within 30 days. Critical for understanding a hospital's stroke care quality.
Infection Control
Standardized Infection Ratio (SIR) — below 1.0 is better than the national benchmark
Central line-associated bloodstream infection rate. A number below 1.0 means fewer infections than the national average — better than expected.
Catheter-associated urinary tract infection rate. SIR below 1.0 = better than national benchmark. Important if you'll be in the ICU.
MRSA bloodstream infection rate. MRSA is a drug-resistant bacteria — an SIR below 1.0 means this hospital has fewer cases than expected nationally.
Clostridioides difficile (C. diff) infection rate. This gut bacteria can cause severe diarrhea — SIR below 1.0 is better than the national benchmark.
30-Day Readmission Rates
Lower readmission rates indicate better discharge planning and post-hospital care
Percentage of heart attack patients readmitted to any hospital within 30 days. Lower rates suggest better discharge planning and follow-up care.
How often heart failure patients need to return to the hospital within 30 days. Lower is better — means patients were stable when discharged.
How often patients return to the hospital within 30 days after hip or knee replacement. Critical if you're planning joint replacement surgery.
Percentage of pneumonia patients readmitted within 30 days. Reflects quality of treatment and discharge instructions.
Medicare Payment Estimates
What Medicare pays this hospital for common procedures vs the national average
Medicare payment amounts are risk-adjusted averages. Actual patient costs depend on insurance plan, deductibles, and other factors.
Check Your Insurance Coverage
Before scheduling care at MARINHEALTH MEDICAL CENTER, verify it is in your insurance network. Out-of-network care can result in significantly higher costs.
Frequently Asked Questions
What is an acute care hospital?▼
What does the CMS star rating mean?▼
Is a higher star rating always better?▼
How often is this data updated?▼
What is HCAHPS?▼
How do I read the infection rates?▼
Does a lower star rating mean the hospital is unsafe?▼
How does MARINHEALTH MEDICAL CENTER rank among hospitals in California?▼
Data source: Centers for Medicare & Medicaid Services (data.cms.gov). Updated quarterly. Last pipeline run: June 2026.