SSM Health ST Mary's Hospital - ST Louis

Hospital · Saint Louis, MO

CMS overall rating 3/5 Voluntary non-profit - Private

CMS certification number260091

Contact & location

6420 Clayton RD
Saint Louis, MO 63117
ST. Louis County
Phone
(314) 768-8000
ZIP code
63117 – all care providers

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Facility details

Ownership
Voluntary non-profit - Private
Hospital type
Acute Care Hospitals
Emergency services
Yes

Hospital quality

CMS overall star rating★★★★★ 3/5
Mortality measures
0 better than national · 0 worse
Safety of care measures
3 better than national · 0 worse
Readmission measures
0 better than national · 2 worse
Birthing-friendly
Y

Frequently asked questions

What is the rating of SSM Health ST Mary's Hospital - ST Louis?

SSM Health ST Mary's Hospital - ST Louis has a 3-star overall rating from the Centers for Medicare & Medicaid Services on a scale of 1 to 5.

What is the phone number of SSM Health ST Mary's Hospital - ST Louis?

(314) 768-8000. The facility is located at 6420 Clayton RD, Saint Louis, MO 63117.

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Source: CMS Care Compare, August 2026. Information is provided as published by CMS; verify details directly with the facility.