Mather Hospital, a member of Northwell Health, is an accredited, non-profit community teaching hospital dedicated to providing a wide spectrum of health care. Mather Hospital, a member of Northwell Health, is a 248-bed community teaching hospital. John T. Mather Memorial Hospital is an accredited 248-bed, non-profit community teaching hospital dedicated to providing a wide spectrum of health care services of the highest quality, in a cost effective manner, to the residents of Suffolk County. As members of the Mather Hospital Family - trustees, medical staff, hospital staff, volunteers and benefactors - we are committed to providing care to the best of our ability showing compassion and respect and treating each patient in the manner we would wish for our loved ones. We will meet or exceed each patient's expectations through the continued collaborative efforts of each and every member of the Mather Hospital Family.