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Meet Our Staff

Senior Director


Charles Barbara

Assistant Director


Jeffrey Appelbaum

Jeff has over 25 years of experience in Information Systems and Operations. Prior to joining The Johns Hopkins Health System, Jeff served as Chief Information Officer, Information Systems Director, and Operations Director.

Project Administrators

Scott Levin

Scott Levin, Ph.D.

Dr. Scott Levin is an Assistant Professor in the Department of Emergency Medicine and holds a joint appointment in the Department of Applied Mathematics and Statistics. He also works as a member of the Department of Operations Integration to forward operational, quality, and financial improvement initiatives within the Johns Hopkins Health System.

Prior to joining The Johns Hopkins Health System, Dr. Levin completed his PhD in biomedical engineering at Vanderbilt University. His work focuses on the use and development of systems engineering tools to study and improve the effectiveness, safety and efficiency of health care delivery.  Dr. Levin's current research is directed toward determining how scarce health care resources may be managed and deployed to best care for patient populations.  This includes an emphasis on systems engineering techniques aimed at improving quality of care, access to care, and medical decision making.

Dr. Levin is actively involved in research efforts for the National Science Foundation (NSF), National Institutes of Health (NIH), and Department of Homeland Security National Study Center for Preparedness and Catastrophic Event Response (PACER).  He has authored and reviewed numerous publications which apply systems engineering methods to medicine.


Syedmehdi Rizvi, M.S., M.D.

Mehdi obtained his Medical Degree by successfully honoring his clinical rotations in Chicago. His Masters in Health Care Management from Johns Hopkins University. His Lean Sigma training came from the Johns Hopkins Armstrong Institute. Prior to joining Hopkins, Mehdi was a consultant for a Baltimore healthcare consulting firm, working with clients on startups to Federally Qualified Health Systems.

In his spare time he volunteers for an international medico-humanitarian organization known as "IMI" and serves as a board member for the Hopkins Biotech Network. Mehdi has done pro-bono work for the National Institute of Health, National Kidney Foundation, Cancer Support Group and Jewish Community Center. Mehdi is also the co-founder of the Private Equity & Venture Capital organization at Johns Hopkins' Carey Business School.

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