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  • Irissa Wilson Rosario, MD

    Dr. Irissa Rosario is a board-certified pediatrician at Orlando Health Arnold Palmer Hospital for Children. As a hospitalist, she sees pediatric patients in the hospital and coordinates their care with specialty physicians. Dr. Rosario’s expertise includes:

  • Ingrid Cristian, MD

    Ingrid Cristian, MD, is a clinical geneticist at Orlando Health Arnold Palmer Hospital for Children. She is board certified in medical biochemical genetics (metabolic), clinical genetics and pediatrics.

  • Allison Story, APRN

    Allison L. Story, MSN, APRN, CPNP-PC, CPON, is an advance practice registered nurse (APRN) with the pediatric hematology-oncology unit at the Haley Center for Children’s Cancer and Blood Disorders at Orlando Health Arnold Palmer Hospital for Children. Her primary focus is providing collaborative care and education to those children and families who are in active treatment for their cancer, including patients enrolled in clinical trials. She also serves as a resource to patients, families and staff.

  • Brian A. Harris, MD, MS

    Brian Harris, MD, is a developmental-behavioral pediatrician with the Orlando Health Children's Neuroscience Institute Behavioral Health and Developmental Center. He cares for children with social, behavioral, and functional issues indicating the possibility of neurodevelopmental conditions such as attention deficit hyperactivity disorder (ADHD), autism spectrum disorder, communication concerns, learning difficulties, and more. He uses a behavioral and holistic approach, along with prescribed medication, as necessary.

  • Marissa Perez, AuD

    Marissa Perez is an audiologist with The Hearing Center at Orlando Health Arnold Palmer Hospital for Children and the Haley Center for Children’s Cancer and Blood Disorders. She has 15 years of experience caring for adult and pediatric patients, and her specialties include:

  • Clinic for Young Women with Bleeding Disorders

    The Bleeding Disorders Clinic was created to serve the special needs of young women with disorders that affect blood clotting. As Central Florida’s only practice dedicated exclusively to pediatric and adolescent gynecology, coupled with specialists in hematology-oncology, we offer a unique combination of expert care with guidance and support.

  • Spina Bifida Program

    The multidisciplinary Spina Bifida Program team will ensure optimal quality of health and well-being for your child. 

  • Pediatric Dialysis

    Pediatric dialysis services are available at Arnold Palmer Hospital for Children. 

  • Pediatric Metabolic Genetics Clinic

    Click here to learn more about pediatric metabolic disorders.

  • Pediatric Genetics Clinic

    Click here to learn more about pediatric genetics disorders.