A rigorous flashcards in a book review for the Physician Assistant certification and recertification exams Market: physician assistant residents (approx. 4,800 per year); PAs preparing for recertification (5,000 every six years) 4,000 Q&As with only the correct answer provided Certification and recertification exams are given year round with summer and fall being the most popular times Daniel Thibodeau, MHP, PA-C (Norfolk, VA) is an assistant professor at Eastern Virginia Medical School. Scott H. Plantz, M.D. (Chicago, IL) is an associate professor at Chicago Medical School.