Dr. Margaret R Tess specializes in clinical psychologist in El Cajon area. Dr. Margaret R Tess has a medical practice at 500 Fesler Street, Ste 205, El Cajon CA, and has over 25 years of experience in the field of medicine. She graduated from her medical school with her medical degree in 1992. Dr. Tess is accepting new patients at her medical office and practice location in El Cajon, California. She is available for appointments, preventative care, medical care as well as ongoing patient care.