Simon Ordonez, PA-C Physician Associate/Assistant, Certified. Simon did his undergraduate work at the University of Texas at Arlington and graduate work at the University of North Texas Health Science Center. Simon has spent the last seven years of his career specializing in Psychiatry, specifically treating depression, anxiety, ADHD, bipolar disorder, PTSD, eating disorders, and schizophrenia. Simon loves to keep abreast with the newest treatment modalities to ensure he is giving updated and quality care to all clients.