Dr. Ghassan Dahhan specializes in internal medicine in Lancaster area. Dr. Ghassan Dahhan, MD has a medical practice at 1759 West Avenue J, #101, Lancaster CA, and has over 44 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1973. Dr. Dahhan is accepting new patients at his medical office and practice location in Lancaster, California. He is available for appointments, preventative care, medical care as well as ongoing patient care.