• American Board of Psychiatry and Neurology
• American Board of Clinical Neurophysiology
• American Board of Psychiatry and Neurology, Epilepsy

Thomas Jefferson University Hospital, Philadelphia, PA

• Director, Jefferson Comprehensive Epilepsy Center, 1997 - present
• Director, Clinical Neurophysiology Laboratory, 1997 - present

Graduate Hospital, Philadelphia, PA

• Director, Neurophysiology Laboratory, 1985 - 1997
• Director, Epilepsy Monitoring Unit 1985 - 1997
• Director, Comprehensive Epilepsy Center, 1995- 1997

• Surgical treatment of epilepsy: outcome after surgery, predictors of surgical outcome, neurobehavioral effects of surgery;
• Mortality in epilepsy: research examining features associated with increased mortality in patients with epilepsy;
• Electrophysiology of epilepsy: studies of EEG in epilepsy, intracranial EEG in epilepsy examining features related to seizure control, seizure propagation and spread;
• Genetics of epilepsy: project examining genetic factors predisposing to heightened susceptibility for epilepsy;
• Electrophysiology of cognition;
• Investigational therapeutics in epilepsy: participation in multiple studies of new pharmaceuticals and devices to treat epilepsy.

• Editor-in-Chief, Epilepsia (the journal of the International League Against Epilepsy)
• Fellow, American Epilepsy Society
• Fellow, American Academic of Neurology
• Member, American Clinical Neurophysiology Society; past president
• Member, Philadelphia Neurological Society; past president
• Member, Publication Committee and Finance Committee of the International League Against Epilepsy
• Member, American Epilepsy Society Guideline Panel
• Board member, Epilepsy Foundation of Eastern Pennsylvania
• Organizer and lecturer at national and international Neurology and Epilepsy meetings 

• Teaching medical students, residents and fellows.
• Regular instructor at resident and fellow epilepsy/neurophysiology conferences.
• Regular instructor at resident neurology conference.

• Developed Epilepsy Program at the Graduate Hospital, including design and development of the epilepsy monitoring unit and EEG laboratory, epilepsy surgical program (with Dr. Michael O'Connor), contributing to development of experimental antiepileptic drug program, and clinical research program.
• Developed the Comprehensive Epilepsy Center at Thomas Jefferson University, including designing and developing the epilepsy monitoring unit and EEG laboratory, epilepsy surgical program (with Dr. Michael O'Connor), experimental antiepileptic drug program, and clinical research program.
• Developed Intraoperative Brain Mapping Program at Thomas Jefferson University Hospital

• Editor-in-Chief, Epilepsia, 2014 – present
• Associate Editor: Epilepsia 2007 - 2014
• Epilepsy Research, 1999-2007
• Epilepsy Advances, 1993-95, 1996-1998
• Member - Editorial Board: Journal of Epilepsy, 1991-1999
• Reviewer: Electroencephalography and Clinical Neurophysiology, Annals of Neurology, Neurology, Epilepsia, Journal of Clinical Neurophysiology, Neuroradiology, Journal of Neurological Sciences, Archives of Neurology, JAMA, New England Journal of Medicine, Lancet