24-Hour Emergency Care Across Long Island

All Catholic Health hospitals in Nassau and Suffolk counties have 24-hour, seven-days-a-week emergency departments staffed with board-certified emergency medicine physicians, registered nurses, radiologists and additional support staff. Our clinical excellence and compassionate care offer comfort in a time of crisis.

Call 9-1-1 immediately if you are experiencing a medical emergency.

We treat critical and serious medical issues for both adults and children, including:

  • Heart attack
  • Head injuries
  • Orthopedic injuries
  • Pediatric injuries
  • Respiratory distress
  • Stroke
  • Trauma

Our Services

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Hospital Intensive Care Unit (ICU) Information

All Catholic Health hospitals in Nassau and Suffolk counties have 24-hour staffed Intensive Care Units (ICU) to monitor and treat critically-ill patients who are admitted from a physician’s office, emergency room, post-operative recovery room or other hospital units.

We are leaders in critical care medicine. Our physicians and nurses offer life-saving care in multiple specialties, including cardiology, neurology, orthopedics and respiratory. Each hospital also has a team of hospitalists who manage all aspects of a patient's medical treatment from hospital admission to discharge.

Please call to get the latest ICU visitor information.

Good Samaritan University Hospital (West Islip, NY): 631-376-3000

Mercy Hospital (Rockville Centre, NY): 516-626-3729

St. Catherine of Siena Hospital (Smithtown, NY): 631-870-3444

St. Charles Hospital (Port Jefferson, NY): 631-474-6000

St. Francis Hospital & Heart Center (Roslyn, NY): 516-562-6000

St. Joseph Hospital (Bethpage, NY): 516-579-6000

Catholic Health hospitals across Long Island are New York State Department of Health-designated stroke centers.

Learn more about our stroke services

All Catholic Health emergency departments treat pediatric emergencies. Good Samaritan University Hospital (West Islip, NY) is a verified Level II Trauma Center for children by the American College of Surgeons.

Learn more about our pediatric services


Elderly patients who visit the emergency department of each Catholic Health hospital can be assured that the facilities have the necessary expertise, equipment and resources to deliver optimal care.

Learn more about our geriatric services

American Medical Response

Catholic Health and American Medical Response work together to offer medical transportation services to our patients. Call for an ambulance at any time.



Paramedic-level ambulance service is available for Catholic Health patients at home, care facilities or physician offices needing urgent access to a Catholic Health hospital emergency department.

American Medical Response's 24/7 Care in Motion Transfer Center is equipped with software to facilitate single-call communication with Catholic Health providers requesting medical transportation.

Inside of Hunter EMS ambulance

Emergency Departments

good samaritan hospital exterior

Good Samaritan University Hospital

West Islip, NY Hospital

Mercy Hospital exterior

Mercy Hospital

Rockville Centre, NY Hospital

St Charles Hospital

St. Charles Hospital

Port Jefferson, NY Hospital

St. Catherine of Siena exterior

St. Catherine of Siena Hospital

Smithtown, NY Hospital

St. Francis Hospital exterior

St. Francis Hospital & Heart Center

Roslyn, NY Hospital Heart Center

St Joseph Hospital

St. Joseph Hospital

Bethpage, NY Hospital