Dr Lehman has over 45 yrs experience in Psychiatry.  His expertise is in the area of diagnosis and psychopharmacology. He works with  ADHD , Depression, Anxiety, OCD, Mood Disorder and Bipolar Disorder. He treats children, adolescents, adults and geriatrics and has lectured extensively for multiple pharmaceutical companies and various professional organizations including APA. He has been either a principal investigator or a sub-investigator in over 170 clinical trials. He has numerous publications in the field of psychopharmacology and lectures frequently in the area of psychopharmacology.