Mark Slidell, MD, MPH

Dr. Slidell is an associate professor of surgery at The Johns Hopkins University. Dr. Slidell is the Associate Chief of Health Services Research and Clinical Integration in the Division of General Pediatric Surgery at Johns Hopkins Children's Center. His clinical practice spans the full breadth of general pediatric surgery, and he is recognized nationally for his expertise in hepatobiliary diseases, foregut surgery, chest wall deformities, and pediatric trauma. Dr. Slidell also has expertise in perioperative quality and safety, programmatic growth, and system alignment.

His health services research focuses on improving clinical outcomes and addressing health disparities in pediatric surgery, particularly regarding pediatric trauma care. Dr. Slidell is the author of dozens of peer-reviewed manuscripts and book chapters, and he is the editor of a surgical textbook entitled, Difficult Decisions in Pediatric Surgery. 

Dr. Slidell is a dedicated educator and mentor passionate about training the next generation of physicians, surgeons, and scientists. He is the Associate Program Director for the pediatric surgery fellowship training program at Johns Hopkins Children’s Center, and he has received numerous teaching awards throughout his academic career.

Dr. Slidell grew up in Maryland and attended medical school at Brown University, followed by a general surgery residency at Georgetown University Hospital. He obtained an M.P.H. at the Johns Hopkins Bloomberg School of Public Health and completed a pediatric surgery fellowship at Children’s National Medical Center in Washington, DC. Dr. Slidell was recruited to Johns Hopkins Children’s Center after spending 10 years on the Comer Children’s Hospital faculty at the University of Chicago.