The health care network operates St. Barnabas Behavioral Health Center in Toms River and nine hospitals in New Jersey : St. Barnabas in Livingston ; Clara Maass , with facilities in Belleville and Kearny ; Newark Beth Israel Medical Center ; Children 's Hospital in Newark ; Union Hospital ; Monmouth Medical Center in Long Branch ; Kimball Medical Center in Lakewood and Community Medical Center in Toms River .