1. Pediatrics- Cook County Hospital, Chicago IL. 2.Neurodevelopmental Disabilities- Johns Hopkins University, Baltimore,MD.
American Board of Pediatrics(1998, 2005).
American Board of Psychiatry and Neurology(2009)
Instructor, Department of Neurology , Johns Hopkins Hospital.
Assistant Medical Director, Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD 21211.