Assistant Professor at the College of Medicine of the University of Central Florida. Board Certified in Occupational Medicine, Residency Trained at Johns Hopkins, and a Fellow of the American College of Occupational and Environmental Medicine (FACOEM). Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP). Certified Independent Medical Examiner (CIME). Medical Officer for the Federal Occupational Safety and Health Administration (OSHA). Member of the national committee that determines safe exposure levels to chemicals in the workplace (Threshold Limit Value Committee (TLV) of the American Conference of Governmental Industrial Hygienists (ACGIH)). Member of Scientific Review Panel for the Hazardous Substance Data Base (HSDB) maintained by the National Institutes of Health. Member of the national committees that develop medical guidelines for employment as a firefighter (NFPA 1582 Technical Committee) and a law enforcement officer (ACOEM LEO Medical Guidance - for a police officer or deputy sheriff). Certified Medical Review Officer (MRO) for federally mandated drug testing.