What is the emergency room wait time at Saint Mary's Hospital?

Patients spend a median of 256 minutes (4 hours 16 minutes) in the emergency department at Saint Mary's Hospital, according to CMS. This is a median over a past 12-month reporting period, not a live figure.

Does Saint Mary's Hospital have an emergency room?

Saint Mary's Hospital provides emergency services.

What is the CMS star rating for Saint Mary's Hospital?

Saint Mary's Hospital has an overall rating of 4 out of 5 stars from the Centers for Medicare and Medicaid Services.

Where is Saint Mary's Hospital located?

Saint Mary's Hospital is at PO Box 527, Leonardtown, MD 20650.

What is the phone number for Saint Mary's Hospital?

The phone number for Saint Mary's Hospital is (301) 475-8981.

Saint Mary's Hospital

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(301) 475-8981 Visit Website

Acute Care Hospitals

98Beds

Time ZoneEST
CountySaint Marys
Emergency CapableYes
FIPS24037
Area Code301

Quality and performance

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

Patients spend an average of 4 hours 16 minutes in the emergency department at Saint Mary's Hospital. That is 14 minutes longer than the Maryland average of 4 hours 2 minutes.

CMS rating ★★★★★ 4/5

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 Saint Mary's Hospital. For a medical emergency, call 911.

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

Closest other hospitals

<0.1 mi St Mary's Hospital Leonardtown, MD 4 hr 16 min ER wait 18 mi Calvert Memorial Hospital Prince Frederick, MD 3 hr 14 min ER wait 24 mi Civista Medical Center La Plata, MD 4 hr 22 min ER wait 24 mi Civista Health La Plata, MD 4 hr 22 min ER wait 31 mi Riverside Tappahannock Hospital Tappahannock, VA 3 hr 6 min ER wait

All hospitals in Leonardtown →

Saint Mary's Hospital Address PO Box 527
Leonardtown, MD 20650

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