Bon Secours Medical Group, Good Samaritan Hospital Electrophysiology provides services for Electrophysiology and Heart Failure. Bon Secours Medical Group is a member of the Westchester Medical Center Health Network (WMCHealth), a 1,700-bed healthcare system headquartered in Valhalla, New York, with 10 hospitals on eight campuses spanning 6,200 square miles of the Hudson Valley.