What is the emergency room wait time at St Mary Mercy Hospital?

Patients spend a median of 241 minutes (4 hours 1 minutes) in the emergency department at St Mary Mercy Hospital, according to CMS. This is a median over a past 12-month reporting period, not a live figure.

Does St Mary Mercy Hospital have an emergency room?

St Mary Mercy Hospital provides emergency services.

What is the CMS star rating for St Mary Mercy Hospital?

St Mary Mercy Hospital has an overall rating of 2 out of 5 stars from the Centers for Medicare and Medicaid Services.

Where is St Mary Mercy Hospital located?

St Mary Mercy Hospital is at 36475 5 Mile Rd, Livonia, MI 48154.

What is the phone number for St Mary Mercy Hospital?

The phone number for St Mary Mercy Hospital is (734) 655-4800.

St Mary Mercy Hospital

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(734) 655-4800 Visit Website

Acute Care Hospitals

263Beds

Time ZoneEST
CountyWayne
Emergency CapableYes
FIPS26163
Area Code734

Quality and performance

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

Patients spend an average of 4 hours 1 minute in the emergency department at St Mary Mercy Hospital. That is 1 hour 18 minutes longer than the Michigan average of 2 hours 43 minutes.

CMS rating ★★★★★ 2/5

Left before seen 3%

ER volume high

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 St Mary Mercy Hospital. For a medical emergency, call 911.

St Mary Mercy Hospital Address 36475 5 Mile Rd
Livonia, MI 48154

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