Dr. Ada Hamosh is the Dr. Frank V. Sutland Professor of Pediatric Genetics in the Departments of Genetic Medicine and Pediatrics. Since 2002, she has served as clinical director of the McKusick-Nathans Institute of Genetic Medicine, now Department of Genetic Medicine and scientific director of the Online Mendelian Inheritance in Man® (OMIM), a catalog of more than 16,800 human genes and genetic disorders created by Dr. Victor A. McKusick. Her research centers the molecular basis of Mendelian disorders, the integration of genetics into clinical practice and the diagnosis and management of inborn errors of metabolism. Dr. Hamosh earned a bachelor’s degree in biology from Wesleyan University, a medical degree from Georgetown University School of Medicine and a master’s of public health from Johns Hopkins University School of Public Health. She later completed a fellowship in medical and biochemical genetics from the Johns Hopkins School of Medicine, before joining the Johns Hopkins faculty in 1992. Dr. Hamosh began her genetics career focusing on cystic fibrosis, serving as coordinator of the International Cystic Fibrosis Genotype-Phenotype Consortium. She served as chair of the Maryland State Advisory Council for Hereditary & Congenital Disorders from 2001-2009, during which time she also served on the executive committee of the Genetic Counseling Training Program, run by Johns Hopkins University and the National Human Genome Research Institute. Dr. Hamosh has authored more than 128 publications on a variety of topics. In addition, she is a member of 16 professional associations and advisory committees including the American Society of Human Genetics, the Steering Committee of the Global Alliance for Genomics and Health, and the executive board of the Human Genome Organization, of which she will be President from 2023-2025. Dr. Hamosh was recognized in Baltimore magazine as one of the region’s top doctors in 2013, and 2016-2020. Dr. Hamosh is rated as a Distinguished provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. Her top areas of expertise are Methylmalonic Acidemia, Maple Syrup Urine Disease, Ornithine Transcarbamylase Deficiency, Phenylketonuria (PKU), and Deep Brain Stimulation.

Dr. Hilary Vernon is a Professor of Genetic Medicine and pediatrics at the Johns Hopkins University School of Medicine. She is also an attending physician at Kennedy Krieger Institute. Hilary Vernon has expertise in treating inborn errors of metabolism and mitochondrial disorders. She is the director of the Mitochondrial Care Center at The Johns Hopkins Hospital and the Barth Syndrome Interdisciplinary Clinic at the Kennedy Krieger Institute. Her research interests include understanding intermediary metabolism in Barth syndrome and in disorders of branch chain amino acid metabolism. Dr. Vernon also co-directs the Department of Genetic Medicine Clinical Trials Unit, and is the principal investigator on multiple clinical trials for rare diseases. Dr. Vernon received her medical degree and doctorate from Rutgers University, New Brunswick, New Jersey. She completed residencies in genetics and pediatrics at The Johns Hopkins University, and a fellowship in clinical laboratory biochemical genetics at The Johns Hopkins University. Dr. Vernon was recognized with the 2010 Francis F. Schwentker Award for Excellence in Research at Johns Hopkins University and the 2011 James B. Sidbury Jr. Fellowship in Biochemical Genetics at Johns Hopkins University. Dr. Vernon is rated as an Advanced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. Her top areas of expertise are Methylmalonic Acidemia, Propionic Acidemia, Infantile Neutropenia, Progressive External Ophthalmoplegia, and Gastrostomy.

Hind Alsharhan is a Medical Genetics provider in Baltimore, Maryland. Dr. Alsharhan is rated as an Advanced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. Her top areas of expertise are ALG3-CDG, Ornithine Transcarbamylase Deficiency, Coenzyme Q Cytochrome C Reductase Deficiency, and Phenylketonuria (PKU).

Dr. David Valle is a professor of pediatrics and ophthalmology at the Johns Hopkins School of Medicine and former director of the Johns Hopkins Department of Genetic Medicine. He also serves as a geneticist for the Johns Hopkins Children’s Center. Dr. Valle holds a bachelor’s degree and medical degree from Duke University. He completed a pediatric residency at Johns Hopkins University before joining the Johns Hopkins faculty. He is interested in the genetic contributions to health and disease. He is the founding director of the Johns Hopkins Center for Inherited Disease Research. Over the years, his laboratory has discovered the genetic causation for more than 20 diseases, including those responsible for inborn errors of metabolism, inherited retinal degeneration, disorders of cellular organelle biogenesis and genetic variations that contribute risk for common disorders such as schizophrenia. Dr. Valle also serves as director of the Predoctoral Training Program in Human Genetics, as well as co-director of the Genes to Society program. He was a 2014 recipient of the annual Victor A. McKusick Leadership Award from the American Society of Human Genetics, which recognizes individuals whose professional achievements have fostered and enriched the development of human genetics as well as its assimilation into the broader context of science, medicine and health. Dr. Valle is rated as an Experienced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Spondyloepimetaphyseal Dysplasia Strudwick Type, Micrognathia, Urea Cycle Disorders (UCD), and Spondyloepiphyseal Dysplasia Congenita.

Constantine Stratakis is a Medical Genetics specialist and a Gastroenterologist in Bethesda, Maryland. Dr. Stratakis is rated as an Advanced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Cushing's disease, Neuroendocrine Tumor, Gastrointestinal Stromal Tumor, Orchiectomy, and Hormone Replacement Therapy (HRT).

Peter Mcguire is a Medical Genetics specialist and a Pediatrics provider in Bethesda, Maryland. Dr. Mcguire is rated as an Advanced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Ornithine Transcarbamylase Deficiency, Urea Cycle Disorders (UCD), Coenzyme Q Cytochrome C Reductase Deficiency, and Very Long-Chain Acyl-CoA Dehydrogenase (VLCAD) Deficiency.

William Gahl is a Medical Genetics specialist and a Pediatrics provider in Bethesda, Maryland. Dr. Gahl is rated as an Experienced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Oculocutaneous Albinism Type 2, Hermansky-Pudlak Syndrome, Oculocutaneous Albinism Type 1, Oculocutaneous Albinism, and Deep Brain Stimulation.

Marshall Summar is a Medical Genetics specialist and a Pediatrics provider in Chevy Chase, Maryland. Dr. Summar is rated as an Experienced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Argininosuccinic Aciduria, Urea Cycle Disorders (UCD), Propionic Acidemia, and Ornithine Translocase Deficiency.

Andrew Haddad is a primary care provider, practicing in Family Medicine and Internal Medicine in Largo, Maryland. Dr. Haddad is rated as an Experienced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Ornithine Transcarbamylase Deficiency, Mitochondrial Complex V Deficiency, Sporadic Hemiplegic Migraine, and Hyperemesis Gravidarum. Dr. Haddad is currently accepting new patients.

Harjit Sidhu is a primary care provider, practicing in Internal Medicine in Cumberland, Maryland. Dr. Sidhu is rated as an Experienced provider by MediFind in the treatment of Ornithine Transcarbamylase Deficiency. His top areas of expertise are Peptic Ulcer, Chronic Obstructive Pulmonary Disease (COPD), Necrosis, and Lung Metastases. Dr. Sidhu is currently accepting new patients.