Hospital Directory USA
Acute care hospital Emergency room

San Mateo Medical Center in San Mateo, CA

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

Overview

About San Mateo Medical Center

San Mateo Medical Center is an acute care hospital in San Mateo, San Mateo County, California. It reports its ownership to Medicare as public (local government). It provides emergency services. It does not currently have a CMS Overall Star Rating, which usually means it reports too few measures to be rated. It has 69 licensed beds, according to state license data via HIFLD. The nearest other listed hospital is Sequoia Hospital, about 4.3 mi away.

CMS Care Compare

Quality ratings

N/A
Not rated: too few measures reported

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

Mortality
2 no different
Deaths within 30 days for conditions such as heart attack, heart failure, pneumonia and stroke.
Safety of care
2 no different
Infections and complications acquired in the hospital.
Readmission
3 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

170 min
Median time in the ER before leaving (OP-18b)
3.0%
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

  • Clostridioides difficile (C. diff) infectionsNo different · SIR 0.66

81% 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 recommend68%
  • Rated the hospital 9 or 1070%
  • Completed surveys208

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

Map

Loading map…

37.53003, -122.29974

Within 25 miles

Nearby hospitals

Frequently asked questions

Where is San Mateo Medical Center located?

San Mateo Medical Center is at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County.

Does San Mateo Medical Center have an emergency room?

Yes. San Mateo Medical Center reports emergency services to Medicare, and patients spent a median of 170 minutes in its emergency department before leaving. In a life-threatening emergency, call 911.

What is the CMS star rating of San Mateo Medical Center?

San Mateo Medical Center does not have a current CMS Overall Star Rating. CMS only rates hospitals that report enough measures; critical access, psychiatric, VA and many small hospitals are often unrated, which says nothing about their quality.

Is San Mateo Medical Center a trauma center?

We have no trauma center designation on record for San Mateo Medical Center. Hospitals without one still treat injuries in their emergency department and transfer patients who need a trauma center. Check the California trauma program for the current list.

What is the phone number of San Mateo Medical Center?

The main phone number on record with Medicare is (650) 573-2222.

Would patients recommend San Mateo Medical Center?

In the most recent HCAHPS patient survey (208 completed surveys), 68% of patients said they would definitely recommend the hospital, and 70% rated it 9 or 10 out of 10.