What is the emergency room wait time at SSM St Joseph Hospital West?

Patients spend a median of 215 minutes (3 hours 35 minutes) in the emergency department at SSM St Joseph Hospital West, according to CMS. This is a median over a past 12-month reporting period, not a live figure.

Does SSM St Joseph Hospital West have an emergency room?

SSM St Joseph Hospital West provides emergency services.

What is the CMS star rating for SSM St Joseph Hospital West?

SSM St Joseph Hospital West has an overall rating of 3 out of 5 stars from the Centers for Medicare and Medicaid Services.

Where is SSM St Joseph Hospital West located?

SSM St Joseph Hospital West is at 100 Medical Plz, Lake St Louis, MO 63367.

What is the phone number for SSM St Joseph Hospital West?

The phone number for SSM St Joseph Hospital West is (636) 625-5200.

SSM St Joseph Hospital West

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(636) 625-5200 Visit Website

Acute Care Hospitals

68Beds

Time ZoneCST
CountySaint Charles
Emergency CapableYes
FIPS29183
Area Code636

Quality and performance

Centers for Medicare & Medicaid Services · data as of July 2026

Patients spend an average of 3 hours 35 minutes in the emergency department at SSM St Joseph Hospital West. That is 52 minutes longer than the Missouri average of 2 hours 43 minutes.

CMS rating ★★★★★ 3/5

Left before seen 4%

ER volume medium

Type Acute Care

Ownership Non-profit

Maternity Birthing-friendly

Source: CMS Hospital General Information and Timely & Effective Care. Wait times are a median over a past 12-month reporting period, not live data. Not affiliated with CMS or with SSM St Joseph Hospital West. For a medical emergency, call 911.

Compare ER waits across Missouri · How we source this data · Something wrong on this page? Tell us

Closest other hospitals

5.8 mi Crossroads Regional Hospital Wentzville, MO No ER 7.3 mi Progress West Healthcare Center O'fallon, MO 3 hr 23 min ER wait 8.5 mi Bhc Spirit of St Louis Hosp St Charles, MO No ER 11 mi Barnes-Jewish St Peters Hospital St Peters, MO 4 hr 13 min ER wait 16 mi SSM St Joseph Health Center St Charles, MO 2 hr 37 min ER wait

SSM St Joseph Hospital West Address 100 Medical Plz
Lake St Louis, MO 63367

The information listed on this page will help you determine if SSM St Joseph Hospital West is the nearest hospital to your location. Address, phone number, emergency department status, bed count and CMS quality measures for SSM St Joseph Hospital West are listed above.