Laura Di Meglio, OD

The Hepato-Pancreato-Biliary (HPB) Surgery Program at Johns Hopkins Hospital provides minimally-invasive procedure options for patients diagnosed with cancer and diseases in the pancreas, liver, gallbladder and bile duct. Our surgeons provide specialized treatment and compassionate care at every stage of your journey.

Dr Halperin received the B.S degree in physics with highest distinction from Purdue University, the M.A. degree in physics from the University of California, Berkeley, and the M.D. degree from Louisiana State University, New Orleans, Louisiana. He is a member of Phi Beta Kappa, an Established Investigator and Fellow of the American Heart Association, and a McClure Fellow of the Johns Hopkins University Applied Physics laboratory. Dr. Halperin is currently a Professor of Medicine, Radiology and Biomedical Engineering at the Johns Hopkins Medical Institutions. He is the co-director of the Cardiovascular Imaging Center of Excellence. He serves on the editorial board of the journal Resuscitation, and is a past chair of the national American Heart Association Advanced Cardiovascular Life Support Subcommittee and a past member of the Emergency Cardiac Care Committee. Ten of his students have received young investigator awards from the American Heart Association and Heart Rhythm Society, and he has ongoing support from the National Institutes of Heath for his research programs. He has over 120 peer-reviewed publications and over 20 patents issued.

Benjamin Barnes is a pediatric cardiologist specializing in fetal cardiology and fetal echocardiography in Baltimore, Maryland. Dr. Barnes was born at The Johns Hopkins Hospital, which is where he also completed his residency in pediatrics and fellowships in pediatric cardiology and pediatric advanced cardiac imaging prior to joining the pediatric cardiology team in 2019. He earned his medical degree from Chicago Medical School.