"Residents and their families deserve the best care possible through open communication, respect, and trust." Dr. Zillweger brings more than 25 years of world-class experience to his role as the Medical Director of St. Barnabas. His dedication to seeing patients through their hospitalization provides the exemplary continuity of care that we value. That's what sets us Apart From Ordinary. William S. Zillweger, MD Internal Medicine O visit StBarnabasHealthsystem.com APART FROM ORDINARY ST. BARNABAS HEALTH SYSTEM Call 724-443-0700 to schedule a tour of one of our beautiful St. Barnabas locations. "Residents and their families deserve the best care possible through open communication, respect, and trust." Dr. Zillweger brings more than 25 years of world-class experience to his role as the Medical Director of St. Barnabas. His dedication to seeing patients through their hospitalization provides the exemplary continuity of care that we value. That's what sets us Apart From Ordinary. William S. Zillweger, MD Internal Medicine O visit StBarnabasHealthsystem.com APART FROM ORDINARY ST. BARNABAS HEALTH SYSTEM Call 724-443-0700 to schedule a tour of one of our beautiful St. Barnabas locations.