Sara Michelle Hartnett, MD

Dr. Mularoni specializes in sports medicine at Johns Hopkins All Children's Hospital. He graduated from Michigan State University with an undergraduate degree in Biology from the Lyman Briggs College of Science. He completed Medical school at the American University of the Caribbean where he achieved honors in his third and fourth year clinical rotations at Ascension Health Hospitals in Detroit, Michigan. Dr. Mularoni completed his Pediatric Residency at St. John Hospital and Medical Center in Detroit, Michigan. His Fellowship in Pediatric Emergency Medicine was completed in Atlanta, Georgia through Emory University.While at Emory University, Dr. Mularoni completed research on procedural pain reduction in the emergency setting and was awarded the American Academy of Pediatrics Willis Wingert award for best fellow research. He has continued conducting research at Johns Hopkins All Children's Hopsital looking at best practice for procedural sedation in reduction of Pediatric forearm fractures. His current research interests include concussion management and prognosis in patients with mild traumatic brain injuries. He is the chairman of the Medical Emergency Committee. Dr. Mularoni lectures internationally on Pediatric Emergency and Sports related topics and is a regular contributor to Fox television's Good Day show.Dr. Mularoni is married to Kim Mularoni who is a Pediatrician in St. Petersburg and together they have three children. During free time, Dr. Mularoni competes in Running, Triathlon and stand up paddle boarding races.

Shelley Nicholls, DNP, APRN, CDCES, is a nurse practitioner in the endocrinology and diabetes program at Johns Hopkins All Children’s. She joined the hospital staff in 2022. She was previously a nurse practitioner at Broward Health Medical Center in Fort Lauderdale, Florida, and a nurse practitioner and director of patient education at University of Miami Diabetes Research Institute. She earned her Doctorate of Nursing Practice from Florida International University in Miami.

Dr. Alrazzak specializes in pediatric hematology and oncology in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute in St. Petersburg, Florida. He joined the hospital staff in 2024. He was previously an attending physician in pediatric hematology and oncology and chair of the Department of Pediatrics at Palm Beach Children’s Hospital in West Palm Beach, Florida. He earned his medical degree from University of Aleppo in Syria. He completed a pediatric residency at Miami Children’s Hospital, followed by a fellowship in pediatric hematology and oncology at State University of New York at Buffalo. He speaks English and Arabic.