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The Emergency Department at Hotel Dieu Hospital of Cornwall — now operating as Cornwall Community Hospital at 840 McConnell Ave — provides around-the-clock emergency care, 365 days a year, serving Cornwall, the United Counties of Stormont, Dundas and Glengarry, and the Mohawk Community of Akwesasne. With over 51,000 annual visits and an average of 140 patients per day, this is the region's primary acute-care emergency facility, staffed by physicians specially trained in emergency medicine. The department is equipped with state-of-the-art diagnostic imaging, including CT and MRI, and is supported by a full range of surgical, medical, and mental health services on site.
Services & Specialties
24/7 Emergency Medicine, CT Scanning and MRI Diagnostics, Surgical Services and Operating Suites, Mental Health and Addiction Crisis Care, Stroke and Transient Ischemic Attack (TIA) Rapid Assessment, Family Birthing Centre, Dialysis (satellite for The Ottawa Hospital), Geriatric Rehabilitation, Acute Inpatient and Ambulatory Care, Assault and Sexual Abuse Support Programs, Pediatric and Women's Health Services.
Amenities
State-of-the-art electronic health record system (fully digital since 2016)
On-site MRI and CT diagnostic imaging
Modern West Wing with natural light and updated emergency facilities
Contact hospital directly for cafeteria, pharmacy, ATM, and Wi-Fi details
The ER is located at 840 McConnell Ave — not 14 York St. Verify your destination before leaving home.
Triage is based on medical severity, not arrival order — a nurse will assess you promptly, but wait times depend on how urgent your condition is compared to others.
For non-emergency concerns, consider calling 811 (Ontario's Telehealth line) before visiting the ER to determine if your situation requires immediate care.
The ER averages about 140 visits per day, so evenings and weekends may see higher volumes — arrive early in the day when possible for less urgent issues.
If you are seeking mental health or addiction support, Cornwall Community Hospital has dedicated CAMHS programs and crisis resources available through the ER.
What to Bring
Ontario Health Card (OHIP card)
Government-issued photo ID
List of current medications, dosages, and allergies
Any relevant medical records, test results, or referral letters
Name and contact number of your family doctor or specialist
Phone charger or portable battery pack for long waits
Comfortable clothing and a light jacket (ERs can be cold)
Snacks and water for accompanying family members
Frequently Asked Questions
Is Hotel Dieu Hospital of Cornwall still operating as an independent hospital?
No. Hotel Dieu Hospital of Cornwall amalgamated with Cornwall General Hospital in 2004 to form Cornwall Community Hospital (CCH), which now operates at 840 McConnell Ave, Cornwall, ON. CCH is the direct successor facility and continues to serve the region with a full range of emergency and acute care services.
How many patients does the Cornwall Community Hospital ER see each year?
In 2022–2023, the Emergency Department recorded 51,293 visits, which works out to approximately 140 patients per day. In a typical year, the hospital handles over 52,000 emergency visits in total.
Does the Cornwall ER have MRI and CT scanning available on site?
Yes. The Emergency Department is supported by on-site CT and MRI diagnostic imaging equipment, installed as part of the West Wing expansion unveiled in 2014, enabling rapid diagnostic assessment for emergency patients.
Does Cornwall Community Hospital offer mental health crisis care through the ER?
Yes. The hospital has dedicated mental health and addiction programs, including Community Addiction and Mental Health Services (CAMHS), and patients experiencing mental health crises can access support through the Emergency Department.
Who does the Cornwall Community Hospital Emergency Department serve?
The ER serves residents of Cornwall, the United Counties of Stormont, Dundas and Glengarry, and the Mohawk Community of Akwesasne, making it the primary emergency facility for a broad catchment area in Eastern Ontario.
Is there a stroke or TIA rapid assessment program at this hospital?
Yes. Cornwall Community Hospital offers a dedicated rapid access program for patients who have experienced a Transient Ischemic Attack (TIA) or a mild non-disabling stroke, providing fast access to diagnosis, health assessment, treatment, and risk factor management.