Dr. Hess specializes in pediatric ophthalmology in the Johns Hopkins All Children’s Department of Pediatric Medicine. He served as chief of the medical staff from 2017-2019. He joined the Johns Hopkins All Children’s Hospital medical staff in 2004. Dr. Hess earned his medical degree from the University of South Florida Morsani College of Medicine in Tampa, Florida. He trained as an ophthalmology resident at Medical College of Virginia and completed a pediatric ophthalmology fellowship at Duke University Eye Center. Dr. Hess is rated as an Advanced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Strabismus, Esotropia, X-Linked Infantile Nystagmus, and Amblyopia.

Dr. Elliott specializes in pediatric ophthalmology in the Johns Hopkins All Children’s Department of Surgery. He earned his medical degree from the University of South Florida Morsani College of Medicine in Tampa, Florida. He completed his internship at Carraway Methodist Medical Center and completed an ophthalmology residency at the University of Alabama at Birmingham. Dr. Elliott also completed a pediatric ophthalmology fellowship at James Hall Eye Center/Eye Consultants of Atlanta. Dr. Elliott is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Strabismus, Hyperferritinemia-Cataract Syndrome, Esotropia, and Amblyopia.

Dr. Alexander is a diagnostic radiologist at Johns Hopkins All Children’s. She sees patients on the hospital’s St. Petersburg, Florida, campus. She joined the medical staff in 2025. She was previously a radiologist at Boston Children’s Hospital. Dr. Alexander earned her medical degree from the University of Kansas School of Medicine in Wichita. She completed a diagnostic radiology residency at the University of Missouri in Kansas City. She then completed a diagnostic pediatric radiology fellowship followed by a pediatric musculoskeletal radiology fellowship at Boston Children’s Hospital. Dr. Alexander is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Scoliosis, Osteochondritis Dissecans, Knock Knees, and Caffey Disease.

Dr. Geller specializes in pediatric neurology for the Johns Hopkins All Children’s Institute for Brain Protection Sciences. He sees patients at the main campus in St. Petersburg and at Johns Hopkins All Children’s Outpatient Care, North Port. He joined the hospital staff in 2018. Dr. Geller previously was a pediatric neurologist and child neurology residency program director at Cardinal Glennon Children's Medical Center in St. Louis, Missouri. He retired as a captain from the U.S. Navy Medical Corps. His clinical and research interests include neurofibromatosis, neuro-oncology and pain management. Dr. Geller earned his medical degree from St. Louis University Medical School. He trained in pediatrics and served as chief resident at Naval Hospital in Oakland, California. He then completed a pediatric neurology residency and served as chief neurology resident at the University of Illinois in Chicago. He also completed a six-week externship at Queen Square Neurologic Institute in London, England. Dr. Geller is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Cerebral Ventricle Cancer, Neurofibromatosis Type 1 (NF1), Neurofibromatosis, and Duchenne Muscular Dystrophy.

Dr. Stapleton is the division chief of oncology and director of pediatric neuro-oncology at Johns Hopkins All Children’s Hospital. Dr. Stapleton joined the hospital in 2007. She has formal training in pediatric neuro-oncology. She received the Armstrong Award for Quality and Patient Safety for Johns Hopkins All Children's in the 2024 Johns Hopkins Medicine Clinical Awards. Dr. Stapleton is on the Pediatric Palliative Care Team at Johns Hopkins All Children’s, and she specializes in symptom control and end of life care. She has been awarded numerous grants for phase I studies for patients with brain and spinal cord tumors as well as clinical research in pediatric palliative care. Dr. Stapleton’s research experience includes investigator-initiated and multi-center research projects. Dr. Stapleton is an associate professor of pediatrics at the University of South Florida and an assistant professor in the department of pediatrics at Johns Hopkins University. Dr. Stapleton completed her medical training at St. Louis University School of Medicine, residency training at Lackland Air Force Base in Texas and fellowship training at Baylor College of Medicine/Texas Children’s Hospital. Dr. Stapleton also served 13 years in the United States Air Force. Dr. Stapleton is a member of the American Board of Pediatrics, the Children’s Oncology Group, the Society of Neuro-Oncology, American Society of Pediatric Hematology/Oncology, and America Academy of Hospice and Palliative Medicine. Dr. Stapleton is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Medulloblastoma, Embryonal Tumor with Multilayered Rosettes, Glioma, Histiocytosis, and Bone Marrow Aspiration.

Dr. Jallo is the vice dean and physician-in-chief at Johns Hopkins All Children's Hospital. He also is the David M. Goldenberg Family Endowed Chair in the Institute for Brain Protection Sciences and a professor of neurosurgery, pediatrics and oncology with Johns Hopkins University School of Medicine. Dr. Jallo joined Johns Hopkins in 2003 as a pediatric neurosurgeon. In 2013, he became the pediatric neurosurgery division director at The Johns Hopkins Hospital in Baltimore. Dr. Jallo moved to Johns Hopkins All Children's in 2015 to launch the Institute for Brain Protection Sciences, a multidisciplinary institute that unites clinicians, researchers and educators focused on promoting optimal neurodevelopment and caring for children with injuries and illnesses that can affect the brain. His areas of expertise include tumors of the brain and spinal cord, intraoperative neurophysiological monitoring for eloquent tumors, use of minimally invasive technologies such as endoscopy and keyhole surgery and surgical treatment of epilepsy. Dr. Jallo has published more than 245 peer-reviewed scientific articles, 89 book chapters and is co-editor of five textbooks on pediatric neurosurgery, pediatric epilepsy surgery and neuroendoscopy. In addition, Dr. Jallo has been principal investigator for NIH and private foundation grants focused on treatment of pediatric central nervous system tumors and other neurosurgical challenges. Dr. Jallo earned his medical degree at the University of Virginia Medical School and completed his residency in neurosurgery at New York University Medical Center and fellowship in pediatric neurosurgery at Beth Israel Medical Center, Institute for Neurology and Neurosurgery, in New York. Dr. Jallo is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Ependymoma, Spinal Tumor, Subependymoma, Posterior Fossa Decompression, and Laminectomy.

Dr. Huszar specializes in care for hospitalized pediatric neurology patients in the Johns Hopkins All Children’s Institute for Brain Protection Sciences in St. Petersburg, Florida. He rejoined the medical staff in 2023 after a previous stint from 2014-19. Dr. Huszar’s clinical and research interests include neonatal and childhood cerebrovascular disorders and childhood primary headaches. Dr. Huszar received his medical degree from Albert Szent-Gyorgyi Medical University (SZOTE) in Szeged, Hungary. Dr. Huszar trained in pediatrics at Erzsebet Hospital in Hodmezovasarhely, Hungary and SUNY Downstate Medical Center in Brooklyn, New York. He then completed a pediatric neurology residency/fellowship at SUNY Downstate Medical Center. Dr. Huszar is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Seizures, Generalized Tonic-Clonic Seizure, Genetic Epilepsy with Febrile Seizures Plus (GEFS+), and Microcephaly with Spastic Quadriplegia.

Dr. Wilsey specializes in pediatric gastroenterology, hepatology, and nutrition in the Department of Medicine. He is the vice chair of the Division of Gastroenterology and served as chief of the medical staff from 2020-2021. In 2022, he was named Johns Hopkins All Children’s Hospital Physician of the Year in the Johns Hopkins Medicine Clinical Awards. Dr. Wilsey is an advanced therapeutic endoscopist specializing in endoscopic retrograde cholangiopancreatography (ERCP) for infants and children. He is one of a select group of gastroenterologists with this expertise internationally and across North America. At Johns Hopkins All Children’s Hospital, he has developed and implemented multiple clinical innovations related to therapeutic endoscopy. He is an associate professor of clinical pediatrics at the Johns Hopkins University School of Medicine. Additionally, he is a core faculty member of the Johns Hopkins All Children’s Pediatric Residency Training Program, where he serves as a faculty and research mentor for pediatric resident physicians. Dr. Wilsey has published more than 90 peer-reviewed research articles, review articles, case reports, consensus statements, and book chapters. He also serves as a peer reviewer for several medical journals, and is the associate editor of the Journal of Pediatric Gastroenterology and Nutrition. He has delivered numerous talks nationally and internationally in the field of advanced therapeutic endoscopy, including the management of esophageal strictures. Dr. Wilsey joined the medical staff in 2002. He is also a clinical professor of pediatrics at the University of South Florida College of Medicine and a former associate program director of the University of South Florida Pediatric Residency Training Program. He earned his medical degree from the University of Miami School of Medicine. He completed his pediatric residency at Baylor College of Medicine and Texas Children’s Hospital, followed by fellowship training in pediatric gastroenterology, hepatology, and nutrition at Baylor College of Medicine and Texas Children’s Hospital. Dr. Wilsey sees patients at the following location: Outpatient Care, St. Petersburg 601 5th Street South, St. Petersburg, FL 33701 Phone: 727-822-4300 Recent News Articles and Media Coverage Study finds possible link between long COVID and mystery hepatitis in kids, Today Show - NBC (June 17, 2022) Is COVID-19 Related to Pediatric Cases of Hepatitis? Verywell Health (June 28, 2022). Dr. Wilsey is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Esophageal Atresia, Eosinophilic Esophagitis, Tracheoesophageal Fistula, Gastrostomy, and Endoscopy.

Jorge Mccormack is a Pediatric Cardiologist in St Petersburg, Florida. Dr. Mccormack is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Congenital Heart Block, Heart Murmurs, Long QT Syndrome, and Wolff-Parkinson-White Syndrome.

Dr. Crenshaw is the medical director for the Clinical Genetics Program at Johns Hopkins All Children’s Hospital and also serves as an assistant professor with Johns Hopkins Medicine. Her research interests include congenital heart defects, chromosome abnormalities and Turner Syndrome. She has additional expertise in the genetics of congenital heart disease and connective tissue disorders. After graduating from Cornell University as a Cornell National Scholar and Hughes Research Scholar, Dr. Crenshaw received her medical degree from the State University of New York Health Sciences Center at Syracuse. She completed a pediatrics residency at Inova Fairfax Hospital for Children in Falls Church, VA (a teaching affiliate of the University of Virginia), followed by a three-year medical genetics training program at Johns Hopkins University’s McKusick-Nathans Institute of Genetic Medicine in Baltimore, MD. Dr. Crenshaw is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Turner Syndrome, Intersex, Mosaicism, and Cleft Lip and Palate.

Dr. Piazza is a pediatric orthopaedic surgeon at Johns Hopkins All Children’s Hospital. He sees patients in the St. Petersburg, Tampa and Lakewood Ranch locations of Children's Orthopaedic and Scoliosis Surgery Associates (COSSA), L.L.P. COSSA is the exclusive provider of pediatric orthopaedic services at Johns Hopkins All Children’s Hospital. Dr. Piazza is a member of the American Academy of Orthopaedic Surgery and Pediatric Orthopaedic Society of North America. His clinical interests include all aspects of pediatric orthopaedics with a special interest in pediatric orthopaedic trauma, lower extremity deformity, sports medicine, complex lower extremity reconstruction and disorders of the foot and ankle. Dr. Piazza earned his medical degree from Penn State College of Medicine in Hershey, Pennsylvania. He then completed an internship and orthopaedic surgery residency at Penn State College of Medicine. He also completed a fellowship in pediatric orthopaedic surgery at Children’s Hospital of Philadelphia. He also earned a master’s degree in biomedical engineering at Duke University. . His top areas of expertise are Infectious Arthritis, Legg-Calve-Perthes Disease (LCPD), Macrodactyly of the Foot, and Clubfoot.

Marco Pinder is a Pediatric Cardiologist in St Petersburg, Florida. Dr. Pinder is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Patent Ductus Arteriosus, Pulmonary Supravalvular Stenosis, Pulmonary Valve Stenosis, and Ventricular Septal Defects.

David Manning is a Radiologist in Saint Petersburg, Florida. Dr. Manning has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are X-Linked Lymphoproliferative Disease, Urachal Cyst, Neurofibromatosis, and Peritonitis.

Erin Petti is a Nurse Practitioner specialist and a Pediatric Neurologist in St Petersburg, Florida. Ms. Petti is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Transient Tic Disorder, Autism Spectrum Disorder, Genetic Epilepsy with Febrile Seizures Plus (GEFS+), and Aphantasia.

Nancy Williams-Wallace is an Ophthalmologist in St Petersburg, Florida. Dr. Williams-Wallace is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Strabismus, Optic Nerve Atrophy, Optic Atrophy Type 1, and Amblyopia. Dr. Williams-Wallace is currently accepting new patients.

Luis Ycaza is a primary care provider, practicing in Internal Medicine in St Petersburg, Florida. Dr. Ycaza is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Hypertensive Heart Disease, Osteomyelitis in Children, Enlarged Liver, and Peptic Ulcer. Dr. Ycaza is currently accepting new patients.

Milan Lombardi is a Dermatologist in St Petersburg, Florida. Dr. Lombardi is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Seborrheic Keratosis, Warts, Actinic Keratosis, and Sunburn. Dr. Lombardi is currently accepting new patients.

Khortnal Delvecchio is a General Surgeon in Largo, Florida. Dr. Delvecchio is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. His top areas of expertise are Liver Failure, End-Stage Renal Disease (ESRD), Diverticular Disease, Liver Transplant, and Kidney Transplant. Dr. Delvecchio is currently accepting new patients.

Yvonne Latimer is a primary care provider, practicing in Family Medicine in Tampa, Florida. Dr. Latimer is rated as an Experienced provider by MediFind in the treatment of Neurofibromatosis. Her top areas of expertise are Legius Syndrome, RASopathies, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension. Dr. Latimer is currently accepting new patients.