Trillium Health Partners - Mississauga Hospital

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About Mississauga Hospital

The Emergency Department at Trillium Health Partners – Mississauga Hospital is one of the largest emergency departments in Canada, serving the central and southern neighbourhoods of Mississauga, ON with 24/7 acute care. Organized into six specialized zones — including resuscitation and trauma, acute psychiatric care, urgent care, and a dedicated pediatric area — this 751-bed regional hospital is equipped to handle everything from life-threatening emergencies to complex multi-system conditions. As a University of Toronto-affiliated teaching hospital and home to specialized regional programs in cardiac surgery, neurosurgery, stroke care, and vascular services, this is one of the most comprehensive acute care facilities in Ontario.

Services & Specialties

24/7 Emergency Department, Resuscitation and trauma care, Acute psychiatric emergency care, Pediatric emergency care, Urgent care, Minor treatment, Advanced cardiac surgery, Primary percutaneous coronary intervention (primary PCI), Cardiac wellness and rehabilitation, Neurosurgery, Stroke care, Vascular services, Geriatric mental health services, Specialized geriatric services, Mental health and addictions services, Maternal and child care, Pediatric oncology, Cancer services, Renal services, Neurosciences, Palliative care, Spine centre, Sexual assault and domestic violence services, Diagnostic imaging, Clinical genetics, Critical care, Fracture clinic, Family medicine, Outpatient and ambulatory care.

Amenities

• Pharma Plus retail pharmacy in Main Lobby (Mon–Fri 8:30am–7pm, Sat–Sun 10am–4pm)
• Crêpe Delicious café (weekdays 8am–8pm, weekends 10am–4pm)
• Tim Hortons express on ground floor
• INS International News convenience store on ground floor
• Volunteer-operated gift shop (Mon–Fri 10am–8pm, Sat–Sun 11am–8pm)
• Two ATMs on-site (Main Lobby and Family Care Centre lobby)
• 24/7 vending machines on ground floor
• Free wireless internet throughout the hospital
• Spiritual and Supportive Care services: (905) 813-3984
• 24/7 Safe Walk escort program with Security Officers
• Electric Vehicle Charging Stations in parking area

Other Care Options

Not every health issue needs an ER visit. Find out where to go for care → · 123 walk-in clinics in Mississauga →

Pharmacists in Ontario can assess and prescribe for dozens of common conditions. See what they can treat →

Compare hospital wait times across Canada. View all wait times →

Tips Before You Go

• This is one of the largest EDs in Canada — if your condition is non-life-threatening, consider calling 811 (Health811) first to determine whether an ER visit is truly necessary.
• A dedicated THP shuttle runs between Mississauga Hospital, Queensway Health Centre, and Credit Valley Hospital — useful if you need to transfer between THP sites.
• Use the HPASS parking card if you or a family member will be visiting frequently; it provides a discounted rate and is transferable among caregivers and family members.
• If you need an escorted walk to your car or a bus stop at any hour, THP's Safe Walk program is available 24/7 — ask at the security desk.
• The Pharma Plus pharmacy in the Main Lobby can fill prescriptions before you leave, so bring your health card and any relevant prescription information to your visit.

What to Bring

• Ontario health card (OHIP card)
• Government-issued photo ID
• List of current medications, dosages, and allergies
• Any relevant medical records, referral letters, or imaging results
• Provincial drug benefit card or private insurance information
• Emergency contact name and phone number
• Phone charger or portable battery pack for long waits
• Comfortable clothing and a light jacket, as ER waiting areas can be cool

Frequently Asked Questions

About ER Wait Times

Emergency departments use triage. Patients with more serious conditions are seen first, regardless of arrival time.

Wait times are estimates based on Ontario health data. Actual wait times may vary.

If you are experiencing a medical emergency, call 911 immediately.