St. Joseph's Regional Medical Center and a department chairman who told a group of doctors he would "separate their skulls from their bodies" if they disobeyed him must pay the doctors $1.27 million, a Bergen County jury has decided. The suit centered on Dr. Roger P. Kierce's management of the OB/GYN department and the handling of the doctors' complaints by hospital administrators, including William McDonald, the chief executive. No problems with the quality of medical care were alleged.