Dr. Ping-an Tjoa specializes in internal medicine in Newark area. Dr. Ping-an Tjoa has a medical practice at 111 Ferguson Lane, Newark DE, and has over 43 years of experience in the field of medicine. He graduated from his medical school with his medical degree in 1974. Dr. Tjoa is accepting new patients at his medical office and practice location in Newark, Delaware. He is available for appointments, preventative care, medical care as well as ongoing patient care.