Emergency Room | Ascension
Ascension Columbia St. Mary's Hospital - Milwaukee Campus

Ascension Columbia St. Mary's Hospital - Milwaukee Campus

  • Cancer care
  • Emergency care
  • Hospital/Medical Center
  • Imaging
  • Laboratory
  • Mental Health
  • Physical Therapy
  • Specialty care


2301 North Lake Dr
Milwaukee,  WI  53211



Emergency care close to home

With a Level IV Trauma Center, Ascension Columbia St. Mary's Hospital - Milwaukee Campus delivers 24/7 ER care for illness and injury.

Ascension Columbia St. Mary's Hospital - Milwaukee Campus is a Level IV Trauma Center and Comprehensive Stroke Center in Milwaukee, Wisconsin, backed by cardiovascular, surgical, neuro, stroke, orthopedic, and trauma specialists. We provide 24/7 care for life-threatening and severe illness and injury — including heart attack, stroke, concussion, broken bones, and more. Experienced ER care teams listen to quickly understand your needs to deliver the right care for you and your family. You are connected to the right follow-up care across Ascension Wisconsin sites of care by our specialists before you leave the ER—including leading cancer care, heart care and women's health.

Seconds count in stroke, heart and burn recovery, seek emergency care immediately. You can tell your family, friends and EMS to take you to your nearest Ascension Wisconsin emergency room. 

Emergency care services include:

  • 24/7 emergency care
  • 45 private treatment rooms and a Fast Track area for expedited treatments
  • Comprehensive Stroke Center
  • Experienced emergency care doctors and ER nurses
  • Inpatient care, when needed
  • On-call specialists
  • On-site full-service digital imaging (X-ray, CT scan and ultrasound)
  • On-site lab

If you are experiencing a life-threatening emergency, go directly to the ER or dial 911. Signs or symptoms of an acute emergency may include shortness of breath, chest pain, open fracture, fainting, severe bleeding, head injury or other major trauma, one-sided weakness or numbness, loss of consciousness or fainting, severe abdominal pain, or bites or stings.

Care right away — 24/7 emergency care 

Doctors, nurses and care teams in our ER at Ascension Columbia St. Mary's deliver advanced care for life-threatening symptoms and conditions. Call 911 or go directly to an emergency room if you or a family member are experiencing:

  • Abdominal pain (moderate to severe)
  • Back pain (severe)
  • Chest pain
  • Coughing up or vomiting blood
  • Pregnant and having labor pains
  • Severe allergic reactions
  • Severe burns 
  • Shortness of breath
  • Severe skin infections or complicated abscesses
  • Sudden neurologic changes like weakness, difficulty speaking, numbness, difficulty walking, or loss of consciousness

Advanced 24/7 trauma care

The ER at Ascension Columbia St. Mary's is a level IV trauma center, delivering advanced care for severe and life-threatening and traumatic injury with state-of-the-art equipment and advanced surgical care. Highly trained surgeons and multidisciplinary care teams work together to provide comprehensive emergency medical care for trauma such as complex fractures, spine injury, and brain injury. Each trauma center is designated by the state to ensure they are equipped for, and capable of, caring for patients with serious injuries.

Advanced emergency care for stroke

Ascension Columbia St. Mary’s is certified as a Comprehensive Stroke Center by The Joint Commission, a national healthcare accreditation organization. Comprehensive Stroke Centers deliver advanced imaging and treatment for complex stroke, including ischemic and hemorrhagic stroke. Your stroke care includes:

  • 24/7 monitoring 
  • Advanced imaging, such as CT angiography (CTA) and magnetic resonance imaging (MRI) 
  • Doctors specializing in neurosurgery, neurovascular and endovascular procedures
  • Neuroscience intensive care unit (ICU)
  • Rehabilitation services

Advanced burn care

Specialists at Ascension Columbia St. Mary's Regional Burn Center provide advanced critical care, comprehensive burn treatment and connection to reconstructive surgery. Emergency and outpatient care for adults and children includes care for burns caused by fire, frostbite and inhalation injury.

Emergency care personalized for pregnant women

At Ascension Columbia St. Mary's, we have an OB Emergency Department (OBED) that delivers 24/7 care for pregnancy and gynecologic conditions. Your OBED care team provides emergency care for preterm labor, high blood pressure, severe nausea and complications associated with high-risk pregnancy. The OBED does not replace your primary obstetrician, midwife or family doctor. The OBED provides additional around the clock care for when your baby just can’t wait.

Care for physical and sexual assault

If you have been physically or sexually assaulted, forensic nurses with Ascension Wisconsin are ready to deliver the care you need. We provide thorough assessments, complete event reports, your medical history and collect forensic evidence, if you choose. Your nurse may also support you with photo documentation, community resources, and testifying in court. Our care includes:

  • Emergency care for medical conditions 
  • Forensic examination with or without evidence collection with a trained sexual assault nurse
  • Forensic photography
  • Sexually transmitted infection (STI) and pregnancy prevention
  • Support from an advocate
  • Coordinating follow-up care and support

Connected to specialized follow-up care

Your care doesn’t stop when you leave the ER. We help connect you to leading specialists and follow-up care to support your care plan and recovery. Your care team also helps you manage your medications and sends prescriptions to your local pharmacy or through Ascension Rx. And you will always have access to our other services, like imaging and lab.