Geisinger Health System is a healthcare system serving more than 3 million residents throughout 45 counties in central, south-central, and northeastern Pennsylvania, and in southern New Jersey. The system was founded in 1915 and is headquartered in Danville, Pennsylvania. Geisinger Health System includes 13 hospital campuses, two research centers, and a 600,000-member health plan. The system employs more than 32,000 people, including over 1,800 physicians and 4,000 nurses. Geisinger Health System is known for its innovative approach to healthcare, including its use of electronic health records and its focus on patient-centered care.