Emergency rooms in Thornton and Westminster serving the entire north Denver community



When a medical emergency strikes, your family needs quality emergency care as quickly as possible. North Suburban Medical Center, part of the HealthONE healthcare network in Denver, offers three convenient emergency rooms in Thornton and Westminster.

Open 24/7 for all your emergency care needs, our ERs treat everything from heart attacks to orthopedic injuries.

Thornton emergency room

Our main campus ER is located at 9191 Grant Street in Thornton, CO within the North Suburban Medical Center. Our emergency room offers award-winning emergency care for our community.

We offer kid-sized medical equipment and private rooms designed to treat children in a calm, reassuring environment. In addition, our pediatric ER is staffed by board-certified pediatricians and pediatric emergency nurses from the Rocky Mountain Hospital for Children, who provide the highest level of care.

If you think your child may need to go to the ER and your doctor's office is closed (on evenings or weekends), call our free pediatric nurse advice line at (303) 563-3300 or check your child's symptoms online to decide if you should bring him/her to the ER.

North Suburban Medical Center’s ER also offers:

  • Board-certified emergency doctors
  • Experienced emergency room nurses with decades of combined experience
  • On-call specialists for life-threatening injuries and illnesses
  • Rapid response programs, including cardiac aleart and stroke alert
  • Airlife helicopter ready to transport stable patients from North Suburban Medical Center who need a Level I Trauma Center at a moment’s notice
  • State-of-the art diagnostic equipment
  • Shorter ER wait times than the national average

Pediatric ER: Kid-Friendly ER Care

Open 7 days a week, our main hospital emergency room has kid-sized medical equipment and cheerful private rooms to help calm our little patients. Plus, our pediatric ER is staffed by board-certified pediatricians and pediatric emergency nurses from the Rocky Mountain Hospital for Children, who provide the highest level of care.

If you think your child may need to go to the ER and your doctor's office is closed (on evenings or weekends), call our FREE pediatric nurse advice line:

303-563-3300

About North Suburban's ER Wait Times

HealthONE is the first hospital system in Colorado to publicly post our average ER Wait Times – including separate Pediatric ER Wait Times for our youngest patients. This transparency is part of our commitment to better serve our communities’ healthcare needs and help patients find the quickest access to high-quality emergency medical care across the Metro area.

ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency, call 9-1-1.

The ER wait time represents the time it takes to see a qualified medical professional, defined as a Doctor of Medicine (MD), Doctor of Osteopathy (DO), Physician Assistant (PA) or Advanced Registered Nurse Practitioner (ARNP).

ER wait times represent a four-hour rolling average updated every 30 minutes, and is defined as the time of patient arrival until the time the patient is greeted by a qualified medical professional. Patients are triaged at arrival and are then seen by a qualified medical professional in priority order based on their presenting complaint and reason for visit.

Not All ERs are Created Equal

North Suburban has award-winning quality care and has been serving our neighbors for a generation.

In an emergency, you want the best care, and you want it quickly. We offer both. Our ERs have:

  • Board-certified emergency doctors
  • Experienced emergency nurses
  • On-call specialists for life-threatening injuries and illnesses
  • Rapid Response Programs, including Cardiac Alert and Stroke Alert
  • Airlife helicopter ready to transport stable patients from North Suburban Medical Center who need a Level I Trauma Center at a moment’s notice
  • State-of-the art diagnostic equipment

ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency, call 9-1-1.

The ER wait time represents the time it takes to see a qualified medical professional, defined as a Doctor of Medicine (MD), Doctor of Osteopathy (DO), Physician Assistant (PA) or Advanced Registered Nurse Practitioner (ARNP).

ER wait times represent a four-hour rolling average updated every 30 minutes, and is defined as the time of patient arrival until the time the patient is greeted by a qualified medical professional. Patients are triaged at arrival and are then seen by a qualified medical professional in priority order based on their presenting complaint ad reason for visit.