Meet the knowledgeable, caring staff members at Lakeland Behavioral Health System. Executive TeamNate Duncan, LCSW Chief Executive OfficerBrittany Venable Chief Financial OfficerRebecca Granden, LCSW Chief Operations OfficerPamela W Acute Admissions DirectorKaycia Turner, BS, BA Director of Business DevelopmentJohn Kellerman, RN Chief Nursing OfficerRichard Aiken, MD. Medical Director