Greenport, N.Y.-based Eastern Long Island Hospital and Stony Brook (N.Y.) Medicine merged with the Greenport center now known as Stony Brook Eastern Long Island Hospital, reports The Suffolk Times.
ELIH aims to make neurology and orthopedic services available locally and decrease the distance patients need to travel for care.
New residency programs were established to help attract physicians to the hospital.
All of the roughly 400 employees were retained in the merger.
"[The merger] will allow us to continue our 114-year mission to the community, which was extremely important to our board," Paul Connor, president and CEO of ELIH, told The Suffolk Times. "They realized that given the changes in healthcare, and how quickly these changes were happening, that they would not have the resources to continue that mission."