Warren K. Bickel, Ph.D. is Chief Executive Officer of HealthSim, Inc. Dr. Bickel is determined to rethink traditional delivery models for prevention science, so that efforts to change health behavior are not limited by the number of professionals available or access to those professionals. The powerful combination of proven science-based methods with the interactivity and accessibility of computers, championed by Dr. Bickel, represents a revolutionary delivery model for drug abuse prevention. Dr. Bickel is the Director of the Arkansas Center for Addictive Behaviors at the University of Arkansas for Medical Sciences. Dr. Bickel has authored over 200 publications, including three books on health behavior and substance abuse, and over 300 presentations. He is married with three children and holds a second degree black belt in Tae Kwon Do.

Lisa A. Marsch, Ph.D. is President of HealthSim. As a scientist, she has been struck by how infrequently proven prevention science interventions are actually used in real-world settings. She co-founded HealthSim to creatively use technology to ensure that effective prevention science reaches the target populations that will benefit the most. This cutting-edge use of technology has enormous implications for public health, ensuring that science-based health behavior interventions can and will have widespread availability. Dr. Marsch is also a Senior Principal Investigator at the National Development and Research Institutes, Center for Drug Use and HIV Research in New York City and holds an adjunct faculty appointment in the Department of Psychiatry at the University of Vermont College of Medicine. She also directs a NIDA-funded research project to evaluate efficacious pharmacological and behavioral treatments for the growing population of opioid-dependent youth. Dr. Marsch is married and enjoys travel, gourmet cooking and gardening.

Michael Grabinski is HealthSim's Chief Technology Officer. Mr. Grabinski has designed and supervised the development of dozens of commercial and research-oriented Internet and intranet applications. Intrigued by the possibility of creating effective behavioral change by using computer-based programs, Mike brought his technological expertise to the science team at HealthSim. Driven by a passion to deliver a product that is effective but affordable, Mike delivers the technology that has allowed HealthSim to create ground-breaking substance abuse prevention and treatment programs. He also serves on the Board of Directors of the Center for Learning and Health at Johns Hopkins University, where he advises on the use of technology in treatment settings. Mr. Grabinski has also developed web-based applications for managing Hopkins Data Services Division, a non-profit organization whose goal is to provide job skills training and lifestyle counseling to at-risk populations in a therapeutic workplace setting. He is married, plays guitar and bass (badly) and runs a home for wayward and abused computers.