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Medical Directors

Photo of Katie Christaldi, M.D., MHS

Kathryn King Cristaldi, M.D., MHS, is the medical Director for school based health and an assistant professor in the Division of General Pediatrics at MUSC Children’s Hospital. She directs the clinical care and programmatic functioning of both in-person and telemedicine School Based Health Centers and provides clinical care to students.

Dr. Cristaldi has a special interest in extending the reach of primary care and preventative medicine to underserved children through school based health. Hailing from a rural area herself, she has sought out opportunities to become involved in the local community to ensure the health and wellness of school children. Dr. Cristaldi is dedicated to exploring public health solutions that utilize involvement of key stakeholders at each level of the sociologic framework to provide innovative and sustainable solutions to address health care disparities. In this role she continues to use her research skills and experience leveraging partnerships between school, medical, and local community personnel in order to successfully increase access to health care in rural communities.

Dr. Cristaldi received her undergraduate education at the University of Dayton and earned her medical degree at the Medical College of Virginia at Virginia Commonwealth University. She completed her pediatric residency at MUSC, and an academic generalist fellowship at the Johns Hopkins University, earning a Master of Health Science degree from the Johns Hopkins Bloomberg School of Public Health.

Photo of Dee Ford, M.D., MSCR

Dee W. Ford, M.D., MSCR, is an associate professor of medicine in the Medical University of South Carolina’s Division of Pulmonary and Critical Care Medicine. Her clinical focus is critical care and her research focus includes palliative/end-of-life care, quality improvement, and reducing disparities in critical care. Dr. Ford is the Medical Director for MUSC’s Medical Intensive Care Unit (MICU) and is a champion of quality improvement and patient safety initiatives. She is also the medical director of the Tele-ICU and ICU Innovations Critical Care Outreach Program. She is widely recognized for her collaborative and multi-disciplinary approach to improving the care of critically ill patients and their families.

Dr. Ford is from Anderson, South Carolina, and received her BS in biology from the University of South Carolina where she was inducted into Phi Beta Kappa. She received her MD from the Johns Hopkins University School of Medicine and was inducted into the Alpha Omega Alpha honor society. Dr. Ford completed her internal medicine residency training at the Johns Hopkins Hospital and her pulmonary/critical care fellowship training at the Medical University of South Carolina.

Photo of Donna Johnson, M.D.

Donna Johnson, M.D., joined MUSC in 1996 as a maternal-fetal medicine specialist in the Department of Obstetrics and Gynecology. Dr. Johnson did her undergraduate work at Furman University and graduated medical school from MUSC. She completed her residency and her maternal-fetal medicine fellowship at University of California-San Diego. In 2012, she was appointed the Lawrence L. Hester professor and chairman of the Department of Obstetrics and Gynecology. Dr. Johnson’s interests include placental growth and development, pre-eclampsia, and recurrent pregnancy loss.

Photo of Aaron Lesher, M.D.

Aaron Lesher, M.D., received his M.D. degree in 2006 from Duke University School of Medicine. He then completed his internship and general surgery residency at the Medical University of South Carolina. Dr. Lesher then went on to fellowship training in pediatric general and thoracic surgery at University of Tennessee Health Sciences Center/LeBonheur Children’s hospital, finishing in 2014. During that time, he obtained expertise in trauma and burn injuries in children. He is board certified in General Surgery and board-eligible in Pediatric General Surgery.

Since returning to the Medical University of South Carolina (MUSC) as an assistant professor in surgery and pediatrics, he has pursued his interests in telemedicine. He has focused his clinical and research interests in outpatient provision of care through telehealth, and is the medical director for the Virtual Consultation Clinical at the Center for Telehealth at MUSC. He also has a special interest in the care of burn injury in children and has developed a comprehensive burn telemedicine program at MUSC Children’s Hospital this year. When not at the hospital, Dr. Lesher can be found spending time with his wife, Thu, and his two children, Campbell and Anna.

Photo of David McSwain, M.D., MPH, FAAP

S. David McSwain, M.D., MPH, FAAP, is the medical director for Inpatient and Emergency Teleconsultation Services and an associate professor of Pediatric Critical Care Medicine at MUSC Children’s Hospital. He is responsible for the development, implementation, oversight, and evaluation of all inpatient and emergency department based teleconsultation services at MUSC. 

Dr. McSwain has devoted his professional life to the care of critically ill and injured children in South Carolina. The disparity in access to specialized medical care in rural areas is strikingly evident in pediatric critical care, where critically ill children may not be seen by a critical care specialist for hours after presenting to a community emergency department. Dr. McSwain developed the Pediatric Emergency and Critical Care Telemedicine program to address this disparity. He has since expanded the program to include multiple adult and pediatric subspecialty consultation services to community hospitals and emergency departments.

Dr. McSwain is the Chair of the American Telemedicine Association Pediatric Telemedicine Guidelines Committee, comprised of experts in pediatric telehealth from across the country, and tasked with developing national telehealth guidelines for pediatric services.

Dr. McSwain earned his Bachelor of Science in Biology and Psychology from Duke University, including a concentration in Neuroscience. He received a Medical Doctorate and a Master of Public Health from the University of North Carolina at Chapel Hill. He completed a combined residency in Internal Medicine and Pediatrics at UNC Chapel Hill and his fellowship in Pediatric Critical Care Medicine at Duke University Medical Center.

Photo of Edward O’Bryan, M.D.

Edward O'Bryan, M.D., has a particular interest in global health having founded the non-profit One World Health and the first global emergency medicine fellowship ever at MUSC. He also is the telemedicine director for the Emergency Department and does extensive telemedicine work in correctional facilities, nursing homes, and the direct-to-consumer markets. Dr. O'Bryan also serves as the physician assistant program medical director at MUSC and advocates for a team-based health approach for patients at MUSC.