Christine Casey PA-C Christine Casey is a sleep medicine physician assistant at AHN. She specializes in outpatient management of sleep disorders including sleep apnea, insomnia, periodic limb movement, restless leg syndrome, idiopathic hypersomnia, narcolepsy, and more. Christine received her Masters in Physician Assistant Studies from Duquesne University in Pittsburgh, PA. She is certified by the National Commission on Certification of Physician Assistants (NCCPA) and licensed in the state of Pennsylvania. She provides a patient-centered approach to care, reviewing concerns, and tailoring treatments to individual patient needs. She sees patients ages 18 and older.