Donald Angell. His primary practice is as a Psychologist: Clinical, also practicing as a Psychologist: Addiction (Substance Use Disorder), a Psychologist: Family, a Psychologist: Rehabilitation, a Psychologist, a Psychologist: Adult Development & Aging, a Psychologist: Counseling, a Psychologist: Health Service, and a Psychologist: Mental Retardation & Developmental Disabilities.