Mark S. Sulkowski, MD is a Professor of Medicine and serves as the Medical Director of the Viral Hepatitis Center in the Divisions of Infectious Diseases and Gastroenterology/Hepatology at the Johns Hopkins University School of Medicine in Baltimore, Maryland. He received his MD from Temple University School of Medicine, Philadelphia, PA (1992), and completed his Fellowship in Infectious Diseases (1998) at Johns Hopkins University School of Medicine, in Baltimore, Maryland. In addition, Dr. Sulkowski has been the principal investigator for more than 50 clinical trials related to the management of viral hepatitis in persons with and without HIV coinfection including novel HCV treatments. He is co investigator for the Johns Hopkins site of the National Institute of Health funded Hepatitis B Clinical Research Network. Dr. Sulkowski is a member of numerous professional societies including American Association for the Study of Liver Diseases, European Association for the Study of the Liver and Infectious Diseases Society of America. He is widely published with works in Annals Internal Medicine, New England Journal of Medicine, Journal of the American Medical Association, Journal of Infectious Diseases, and Hepatology. As an invited lecturer, he has presented discussions of the management of viral hepatitis at numerous major national and international medical meetings.