Dr. Gerard J. Diefes graduated from the Hahnemann University School of Medicine in 1992. He works in Philadelphia, PA and 1 other location and specializes in Pulmonary Disease. Dr. Diefes is affiliated with Roxborough Memorial Hospital, Delaware County Memorial Hospital and Hahnemann University Hospital.
Years in Practice: 22 Years
Languages Spoken: English
Medical School: Hahnemann University School of Medicine
Graduation Date: 1992
Specialties: Pulmonary Disease
*This physician has multiple office locations. See Appointments for details.