1931 - 2015
{ "" }
Share JOHN's life story with friends and family
Send an Email
Or Copy this URL to Share

The staff and trustees of the North Shore-LIJ Health System mourn the loss of John "Jack" S.T. Gallagher, the health system's founding president and chief executive officer. Jack died suddenly Saturday night, April 18, of a heart attack at his home in Palm Beach, FL. He was 83. Jack was a legendary leader whose foresight and vision as president and CEO of North Shore University Hospital (NSUH) in Manhasset laid the groundwork in the early 1990s for hospital mergers on Long Island and Queens, creating a model for the integrated health systems that are so prevalent in today's healthcare market. During an era when managed care was first taking hold and hospitals were struggling financially, Jack sought to level the playing field for healthcare providers. He negotiated a merger with what was then known as Community Hospital at Glen Cove in 1990, before formally establishing the North Shore Health System in 1992. Over the next four years, he would develop relationships with Huntington, Plainview, Franklin, Forest Hills, Syosset, Staten Island University and Southside hospitals, before the network expanded further with the 1997 merger with Long Island Jewish (LIJ) Medical Center. The historic merger created the North Shore-LIJ Health System that stands today as the largest in New York State and the nation's 11th largest non-profit health system. A Queens native who obtained a business degree from Holy Cross College, Jack left the family tire business in his early 30s to begin pursuing a career in healthcare administration, earning a master of science degree from Yale University in epidemiology and public health. He joined the administrative staff at what was then called North Shore Hospital as an intern in 1963, working for then-Executive Vice President and CEO Dennis Buckley. The two would work closely together over the next two decades before Jack became president and CEO in the 1980s - a job he would hold until his retirement at the end of 2000. He had continued to serve as a life trustee of the health system. In addition to his unparalleled dedication and commitment to his work, Jack was extremely affable and approachable, enjoying coffee and breakfast with front-line staff and playing the piano at hospital holiday parties and other gatherings. On behalf of the staff and trustees of the entire North Shore-LIJ Health System, we extend our deepest condolences to his wife, Aileen O'Halloran Gallagher; sons John, Robert, Thomas and Paul; daughters Grace Haggerty and Louise Grecco; seven step-children; 27 grandchildren and four great-grandchildren. In honor of Jack, flags at all North Shore-LIJ facilities will be flown at half-staff. Calling hours will be held this Thursday, April 23, from 3pm to 5pm and 7pm to 9pm at the Oyster Bay Funeral Home. A Mass of Christian Burial will be held on Friday, April 24, at 10am at St. Gertrude's Catholic Church in Bayville. Please join us in remembering Jack and his family in your thoughts and prayers. Mark L. Claster, Chairman, Board of Trustees, North Shore-LIJ Health System Michael J. Dowling, President & CEO, North Shore-LIJ Health System

To Plant Memorial Trees in memory, please visit our Sympathy Store.
Published in New York Times on Apr. 21, 2015.
03:00 - 05:00 PM
07:00 - 09:00 PM
Mass of Christian Burial
10:00 AM
St. Gertrude RC Church
Funeral services provided by
Order by phone: (866) 764-7853
Memories & Condolences
Not sure what to say?
View Printed Guest Book
14 entries
November 4, 2015
I am sure you will be missed by everyone, I enjoyed working with you, one of the best Jack, see you in heaven.
Mary D'Elia
May 8, 2015
I didn't sign my name:

Carol A McLaughlin (Rickerich), RDH
May 8, 2015
I worked with him at NSUH, a wonderful man.
He was the best man to work with and be around. He served as a roll model for us all.A gentleman and scholar I am a better person for knowing and working with him. Good-bye Mr. G. you were certainly loved.
Carol A McLaughlin (Rickerich),RDH
April 25, 2015
John, way a very good administrator very friendly with the personnel.,I hard the opportunité in December to Say Hi to him and which him. a happy birday.
My Condeleances to the family
Jean balmir
Jean Balmir
April 24, 2015
Jack is a great man. A terrific sense of humor, patient and very friendly. A role model for all of us. I very much enjoyed spending time with Jack over the past 10 years and I will enjoy fond memories.
Ned Steiger
April 23, 2015
As a salesman for Best Tire in Great Neck, I had the priveledge of knowin Jack Gallagher while he was the chief administrator of North Shore Hospital. He was my customer and a gentelman in the nth degree. My sincere condolences to his entire family. I was always impressed at the fact that his family was related to the General Tire Company
Manny Stein
April 22, 2015
Far a way from the family ,as a good friend with John All my regret ,and my Condeleances to the family,.
Jean Balmir retirée from. The Maintenance and engeneri NSHU
Jean Balmir
April 22, 2015
As Head Nurse of the Nursery I always looked forward to visit's from Mr.Gallagher. My Love and Prayers go out to His entire Family
Brigid O'Leary RN
April 21, 2015
My thoughts and prayers are with you in your time of grief. May your memories bring you comfort.
Carla Badini
April 21, 2015
Very glad to have worked with Jack in the early days of Northshore Hospital. Many pioneer progams were estabished thanks to his support and imgination.
Wade Sears
April 21, 2015
My condolences to the family. I worked in Administration at North Shore in the 1970's while he was Administrator. He was a wonderful person and it was a pleasure knowing him.
barbara lohman
April 21, 2015
John, we'll miss you in class!
Linda McVay
April 21, 2015
John's painting class will miss him so much. He was one of our best and most prolific students. What a wonderful man!
Linda McVay
April 21, 2015
i'm so sorry for yout loss. 1 Corinthians 15:26
Invite others to add memories
Share to let others add their own memories and condolences