South Oaks Hospital

Northwell, Mather finally head down the aisle

By GREGORY ZELLER // John T. Mather Memorial Hospital and the mighty Northwell Health system will officially tie the knot this week. Kenneth Roberts, president of the Port Jefferson-based hospital, and Michael Dowling, president and CEO of New Hyde Park-based Northwell Health, are scheduled to sign an agreement Thursday that assimilates Mather Hospital into the multiregional health system. Mather Hospital signed a letter of intent in July to join New York State’s largest healthcare operation….