John B. Bulger, DO, MBA is the chief medical officer of Geisinger Health Plan located in Danville, Pennsylvania. He has been with the Geisinger Health System since completing his internal medicine residency at PCOM in 1998. He has led clinical, operational and education programs at Geisinger. These include director of hospital medicine, program director of the osteopathic internal medicine residency, associate chief academic officer and chief quality officer.