Errol Fields, MD

Dr. Rebecca Ruebner is an Associate Professor of Pediatrics at the Johns Hopkins University School of Medicine. She provides care for children with kidney problems of any type including hypertension, hematuria, proteinuria, kidney stones, chronic kidney disease, dialysis, and kidney transplant. She is the medical director of pediatric dialysis. Dr. Ruebner received her undergraduate and medical degrees from the University of Pennsylvania. She completed her residency at Boston Children’s Hospital where she also served as chief pediatric resident. She completed her fellowship in pediatric nephrology at the Children’s Hospital of Philadelphia. During her fellowship, she received a Master's Degree in Clinical Epidemiology from the University of Pennsylvania. Dr. Ruebner became a faculty member at the Children's Hospital of Philadelphia in 2012 before joining the Johns Hopkins faculty in 2016. Dr. Ruebner's clinical research is focused on clinical care and outcomes of children with chronic kidney disease and end-stage kidney disease.

Dr. Aaron M. Milstone is a professor of pediatrics at the Johns Hopkins University School of Medicine. He holds a joint appointments in Epidemiology and Health Policy and Management at the Bloomberg School of Public Health. A pediatric epidemiologist, Dr. Milstone specializes in treating infectious diseases in children. He serves as an associate hospital epidemiologist at The Johns Hopkins Hospital and the pediatric lead for infection prevention for the Johns Hopkins Health System. Dr. Milstone earned his medical degree from Yale University School of Medicine. He completed both a pediatrics residency and a research fellowship in pediatric infectious diseases at Children's Hospital of Philadelphia. He also completed a pediatric infectious diseases fellowship at Johns Hopkins. He holds a M.H.S. (Graduate Training Program in Clinical Investigation) from the Johns Hopkins Bloomberg School of Public Health and Johns Hopkins University School of Medicine. Dr. Milstone joined the Johns Hopkins faculty in 2007. His research interests focus on antibiotic resistance and prevention of healthcare-associated infections. He had led numerous clinical trials including the Pediatric SCRUB Trial and TREAT PARENTS Trial testing strategies to prevent organism transmission and healthcare-associated infections. He is principal investigator of the BrighT STAR Collaborative, guiding hospitals nationwide to reduce over-testing as a strategy to reduce antibiotic use and resistance. Dr. Milstone is a fellow of the American Academy of Pediatrics, the Infectious Diseases Society of America, the Pediatric Infectious Diseases Society, and the Society for Healthcare Epidemiology of America. His many other professional honors include the Pediatric Infectious Diseases Society’s 2014 Young Investigator Award, the inaugural 2013 Caroline B. Hall Clinical Innovation Award, and the Society for Healthcare Epidemiology of America 2018 Mentor Scholar Award, and 2023 Johns Hopkins Medicine Armstrong Award for Excellence in Quality & Safety.

Dr. Risa Wolf is an Associate Professor of Pediatrics in the Division of Pediatric Endocrinology at the Johns Hopkins University School of Medicine. Her clinical practice focuses on pediatric diabetes care and other endocrine issues. Dr. Wolf received her undergraduate degree from the University of Pennsylvania, after which she attended the Mount Sinai School of Medicine where she graduated with Distinction in Research, and was inducted into the Alpha Omega Alpha Honor Medical Society. She completed her pediatric residency at the Children's Hospital of Philadelphia, followed by a fellowship in pediatric endocrinology at the Johns Hopkins Hospital. During her fellowship, Dr. Wolf was awarded prestigious grants from both the Pediatric Endocrine Society and the Endocrine Society to support her research in obesity and metabolism. Dr. Wolf also spent two years working at Broward Health in Florida, where she developed a Comprehensive Pediatric Diabetes Center. She is the Founder and Medical Director of Camp Charm City diabetes camp in Baltimore, MD. Dr. Wolf's research focus is on clinical care innovations to improve outcomes in pediatric diabetes. She is the Principal Investigator of a study implementing point-of-care diabetes retinopathy screening into pediatric diabetes care, a Co-Investigator for Trialnet, and the Principal Investigator for the Pediatric Diabetes Consortium site at Johns Hopkins. She also studies a novel family of proteins, called CTRPs, to determine their impact on glucose and lipid metabolism in the context of obesity and diabetes. Dr. Wolf is affiliated with the American Academy of Pediatrics, the Pediatric Endocrine Society, the Endocrine Society, and the American Diabetes Association.