Clinical Excellence, Patient Focused Care

Mercy Hospital (Rockville Centre, NY) offers Long Islanders the highest level of care. Our doctors, nurses and supporting medical staff deliver clinical excellence and compassionate care in numerous specialties.

Services & Programs

Comprehensive care to meet the unique health needs of each patient.

Emergency Medicine

Our emergency department is open 24 hours a day, seven days a week, for adult and pediatric emergencies.

Radiology & Lab Services

Convenient access to comprehensive diagnostic and lab services.

Specialized Care

Center for Hyperbaric Medicine & Wound Healing
All the care you need in one location for all types of wound care.


Sleep Disorders Center
A home-like setting to help diagnose and treat sleep disorders.


Our Diabetes Education Center offers education and support for patients with diabetes.

Catholic Health wound care staff
Mercy Hospital wound care team.

The Cancer Institute at Mercy Hospital

A full spectrum of cancer care close to home—from screenings to diagnosis to treatment. Our cancer specialists use the most advanced treatments and surgical options. We also offer innovative treatments through our clinical trials in partnership with Roswell Park.

View Cancer Services
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Key Services

Discover why so many Long Islanders trust their health care needs to Mercy Hospital. We are rated by U.S. News & World Report as high performing for COPD and kidney failure.

female doctor, male patient