Hemophilia and Bleeding Disorders Team
Irmel Ayala, M.D.
Dr. Ayala is the director of the Hemophilia and Bleeding Disorders Treatment Center at Johns Hopkins All Children's Hospital. She also is the hematology leader of the Young Women Bleeding Disorders/Menorrhagia Clinic, which focuses on a multidisciplinary approach to bleeding symptoms in girls and young women. Dr. Ayala also is involved in the Immune Dysregulation Clinic, which evaluates patients with autoimmune cytopenias in a multidisciplinary approach.
Alyson Trillo, D.O.
Dr. Trillo is a pediatric hematologist-oncologist in the Johns Hopkins All Children’s Cancer & Blood Disorders Institute. She joined the hospital staff in 2023. She earned her medical degree from Kansas City University of Medicine and Biosciences in Kansas City, Missouri. She completed her pediatric residency and served as pediatric chief resident at Broward Health Medical Center/Salah Foundation Children’s Hospital in Fort Lauderdale, Florida. She completed a fellowship in pediatric hematology-oncology at University of Miami/Jackson Memorial Hospital in Miami.
Jasmine Reese, M.D., MPH
Dr. Reese is the director of the Adolescent and Young Adult Specialty Clinic within the Division of General Pediatrics and Adolescent Medicine. She is also the adolescent medicine rotation director for the pediatric residency program. She joined the Johns Hopkins All Children's medical staff in 2016 and serves as a full-time assistant professor of pediatrics in the Johns Hopkins University School of Medicine. Dr. Reese’s clinical interests include reproductive health and mental health, and her research focuses are medical education and curriculum development in adolescent mental health and depression. She is an active member of the Society for Adolescent Health and Medicine, where she also serves as the secretary for the southeast United States region.
Drew Warnick, M.D.
Dr. Warnick is a pediatric orthopaedic surgeon at Johns Hopkins All Children’s Hospital. He sees patients in the St. Petersburg and Tampa locations of Children's Orthopaedic and Scoliosis Surgery Associates (COSSA), L.L.P., the Johns Hopkins All Children’s Outpatient Care location in Sarasota, and at IMG Academy where Johns Hopkins All Children’s provides sports medicine and general health services.
