Hospital Directory USA
Acute care hospital Emergency roomLevel III trauma

Marinhealth Medical Center in Greenbrae, CA

Also known as Marin Health Medical Center

Directions (415) 925-7900 mymarinhealth.org

In a medical emergency, call 911. This page is for information only.

Overview

About Marinhealth Medical Center

Marinhealth Medical Center is an acute care hospital in Greenbrae, Marin County, California. It reports its ownership to Medicare as public (hospital district or authority). It provides emergency services. It is listed as a Level III trauma center. Its CMS Overall Hospital Quality Star Rating is 5 out of 5. It has 310 licensed beds, according to state license data via HIFLD. It meets the CMS Birthing-Friendly designation criteria for maternity care. The nearest other listed hospital is Kentfield Hospital, about 1.1 mi away.

CMS Care Compare

Quality ratings

5
Overall Hospital Quality Star Rating, out of 5

How this hospital compares with the national rate on each measure group:

Mortality
2 better · 6 no different
Deaths within 30 days for conditions such as heart attack, heart failure, pneumonia and stroke.
Safety of care
1 better · 6 no different
Infections and complications acquired in the hospital.
Readmission
3 better · 8 no different
Unplanned returns to the hospital after discharge.

Source: Centers for Medicare & Medicaid Services, Hospital General Information. How star ratings work.

Emergency department

Emergency room times

176 min
Median time in the ER before leaving (OP-18b)
1.0%
Left before being seen (OP-22)
high
Emergency department volume

Lower times are better. Reporting period ending September 2025. Source: CMS Timely and Effective Care. What these numbers mean.

Safety of care

Infections and sepsis care

  • MRSA bloodstream infectionsNo different · SIR 0.00
  • Catheter-associated urinary tract infections (CAUTI)Better than national · SIR 0.18
  • Clostridioides difficile (C. diff) infectionsBetter than national · SIR 0.45
  • Central line bloodstream infections (CLABSI)No different · SIR 0.40
  • Surgical site infections after colon surgeryNo different · SIR 0.00

66% of patients with severe sepsis or septic shock received all the recommended early care steps (SEP-1). Higher is better.

SIR is the standardized infection ratio: below 1 means fewer infections than predicted for a hospital like this one. Period ending September 2025. Source: CMS Healthcare-Associated Infections and Timely and Effective Care.

HCAHPS survey

What patients say

  • Patient survey star rating
  • Would definitely recommend76%
  • Rated the hospital 9 or 1072%
  • Completed surveys1,233

Survey period ending September 2025. Source: CMS HCAHPS Patient Survey.

Map

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37.94760, -122.53754

Within 25 miles

Nearby hospitals

Frequently asked questions

Where is Marinhealth Medical Center located?

Marinhealth Medical Center is at 250 Bon Air Road, Greenbrae, CA 94904 in Marin County.

Does Marinhealth Medical Center have an emergency room?

Yes. Marinhealth Medical Center reports emergency services to Medicare, and patients spent a median of 176 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.

What is the CMS star rating of Marinhealth Medical Center?

Marinhealth Medical Center has a CMS Overall Hospital Quality Star Rating of 5 out of 5. The rating combines measures of mortality, safety of care, readmission, patient experience and timely and effective care, compared with hospitals nationwide.

Is Marinhealth Medical Center a trauma center?

Yes. It is listed as a Level III trauma center in the HIFLD hospitals data, which is compiled from state trauma registries (source date March 2024). Trauma designations are renewed periodically, so confirm with the California EMS or trauma program. In an emergency, call 911: paramedics take seriously injured patients to the right trauma center.

What is the phone number of Marinhealth Medical Center?

The main phone number on record with Medicare is (415) 925-7900.

Would patients recommend Marinhealth Medical Center?

In the most recent HCAHPS patient survey (1,233 completed surveys), 76% of patients said they would definitely recommend the hospital, and 72% rated it 9 or 10 out of 10.

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