Kaleida Health will begin construction later this summer on a $13.6 million expansion of Millard Fillmore Suburban Hospital in Amherst that features a new neonatal intensive care unit for the treatment of seriously ill or premature newborns.

The 10-bed unit will be located on a new fourth floor built above the three-story, labor-and-delivery building that sits behind the main Maple Road hospital building.

Kaleida Health is converting six licensed maternity beds, two rehabilitation beds and two critical-care beds for the 13,192-square-foot neonatal unit, part of 30,632 square feet of new space that includes related mechanical and structural work.

Officials say construction of the new unit eliminates the need for critically ill newborns to be taken to another facility, risking further complications. The neonatal unit will be connected through a “hub-and-spoke model” to Kaleida Health’s Women & Children’s Hospital of Buffalo, according to system administrators.

Work on the neonatal unit is expected to begin by the end of August and be completed within 12 to 16 months.