Dr. Tricia Lynn Duncan-hassel specializes in clinical psychologist in Glendora area. Dr. Tricia Lynn Duncan-hassel, CP has a medical practice at 150 East Meda Avenue, Suite 110, Glendora CA, and has over 15 years of experience in the field of medicine. She graduated from her medical school with her medical degree in 2002. Dr. Duncan-hassel is accepting new patients at her medical office and practice location in Glendora, California. She is available for appointments, preventative care, medical care as well as ongoing patient care.