Welcome To Mercy Medical Center

A member of Catholic Health Services of Long Island, Mercy Medical Center in Rockville Centre, NY has been providing compassionate, state-of-the-art medical care to residents of Nassau County and the surrounding New York Metropolitan area since 1913.

Mercy is ranked among the top 20 percent of hospitals in New York State in the 2012 ratings of Best Hospitals by U.S. News and World Report and is well-known and highly respected for both expertise and the latest technology in a broad range of services, including Weight-Loss Surgery (Bariatric Surgery); Orthopedic Surgery, including Joint Replacement Surgery; Spine Surgery; Physical Medicine and Rehabilitation; Mammograms and Breast Health; and Mother/Baby and Women's Health Services.

Mercy provides 24-hour Emergency, Trauma and Express Care for both adults and children, is a state-designated Stroke Center, delivers some 1,300 babies each year and is the site of the only Level III Neonatal Intensive Care Unit on the South Shore.

Founded by the Sisters of the Congregation of the Infant Jesus, Mercy is proud to advance the Catholic Health Services of Long Island principles of continuing Christ's healing mission, promoting excellence in care, and commitment to those in need.

Physician Referrals

To find a physician, please call our personal help line at:
For General and Patient Information:

Free Newsletter and items on central column

Read our latest Newsletter or previous issues. To subscribe, call 516-62MERCY


For your convenience, wireless internet access is available in our Main Lobby

Upcoming Events

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Bishops Launch Religious Liberty Campaign

Catholic League president Bill Donohue responds to the statement released today by U.S. bishops calling for a religious freedom campaign ...[Read more...]

Mercy’s Campus Is Smoke-Free

Free CT Lung Scans Available

Our Location

Free Parking at Mercy Medical Center

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Award-Winning Care


In recognition of the value it places on superior nursing care, Mercy Medical Center has received Pathway to Excellence® designation from the American Nurses Credentialing Center (ANCC).


In the latest affirmation of the hospital's quality of care, Mercy Medical Center has been designated a Breast Imaging Center of Excellence by the American College of Radiology (ACR).


Mercy Medical Center’s Community Hospital Comprehensive Cancer Program has received an Outstanding Achievement Award from The Commission on Cancer of the American College of Surgeons.


In recognition of its commitment and success in implementing excellent care for stroke patients, Mercy Medical Center has received two consecutive Get With The Guidelines® - Stroke Gold Plus Quality Achievement Awards from the American Heart Association / American Stroke Association.



Mercy Medical Center is a Bariatric Surgery Center of Excellence® designated by the American Society For Metabolic and Bariatric Surgery.Read more...