John T. Mather Memorial Hospital

Mather Hospital, formerly known as John T. Mather Memorial Hospital, is a general teaching hospital located in Port Jefferson, New York. It is named after John T. Mather , who made provisions to create the hospital in his will as early as 1916.
John T. Mather Memorial Hospital opened on December 29, 1929 with 54 beds. A new wing was added in 1962 with a new surgical suite, an emergency facility and an intensive care unit. A new psychiatric wing was added in 1973. In 1983 the hospital was renovated and another new wing was opened. In 1990 the hospital added the current emergency room called the Contessa Nadia Faber Emergency Pavilion. In 1992 the hospital opened the Frey Family Foundation Medical Arts Building, which currently houses the Bariatric Surgery Center of Excellence, Sleep Disorders Center, Infusion Center and administrative offices. By 1997 it reached its current bed count of 248. In 1998 the hospital opened the Matthew J. and Debra A. Cody Ambulatory and Inpatient Surgical Pavilion. In 2015, the Arthur & Linda Calace Family Pavilion was dedicated, housing a 35-single-bedded patient care unit; offices and teaching facilities for the Graduate Medical Education Program and a state-of-the-art conference center.

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