Medical And Nutritional Advisors


Dr. Can Ficicioglu

The Children’s Hospital of Philadelphia


Dr Ficicioglu is the Associate Professor of Pediatrics Perelman School of Medicine at the University of Pennsylvania. He is also the Children’s Hospital of Philadelphia Division of Human Genetics /Metabolism Director, Newborn Screening Program Director, and Lysosomal Storage Diseases Program Director

Dr. Harvey Levy

Boston Children’s Hospital

Senior Physician in Medicine, Divison of Genetics and Genomics

Professor of Pediatrics, Harvard Medical School


Dr. Harvey Levy is Senior Physician in Medicine/Genetics at Boston Children’s Hospital and Professor of Pediatrics at Harvard Medical School. He has devoted his career of 50 years to the diagnosis, research, and treatment of metabolic disorders.

Dr. Jessica Scott- Schwoerer

University of Wisconsin

Dr. Scott Schwoerer earned her medical degree from the University of Wisconsin School of Medicine and Public Health (formerly UW Medical School), Madison, WI and completed her residency and fellowship at University of Wisconsin Hospital and Clinics.  She is board certified in pediatrics.

Dr Schwoerer is currently the Associate Professor, Dept of Pediatrics – Genetics, Medical College of Wisconsin / Children’s Wisconsin, and the Metabolic Consultant, Wisconsin Newborn Screening. 

Dr. Melissa Wasserstein

Children’s Hospital at Montefiore

Chief, Division of Pediatric Genetic Medicine


Associate Professor

Dr. Wasserstein is an NIH-funded clinical researcher whose work focuses on evaluating the safety and effectiveness of novel treatments for patients with inborn errors of metabolism. Prior to joining CHAM, Dr. Wasserstein was Director of the Program for Inherited Metabolic Diseases at Mount Sinai Health System.

Dr. Rani Singh

Emory University


Dr. Singh is the principal investigator for the Southeast Regional Genetics Network (SERN), which addresses gaps in genetic services and is funded through the federal Health Resource and Services Administration (HRSA). She fosters collaborative research with investigators and clinicians throughout the U.S., spearheading evidence- and consensus-based guidelines for nutrition, metabolism, and rare genetic disorders. These guidelines were accepted by the Agency for Healthcare Research and Quality (AHRQ) and are available to providers worldwide to improve patient outcomes.

Sandra van Calcar Ph.D., RD, LD

Oregon Health and Science University


Sandra “Sandy” Van Calcar Ph.D., R.D., L.D. is an Assistant Professor in the Department of Molecular and Medical Genetics and affiliated with Graduate Programs in Human Nutrition at OHSU.

Dr. Van Calcar’s research focuses on nutrition management of IEM with emphasis on classical galactosemia, fatty acid oxidation disorders and pregnancy in IEM.  She is a founding member and Past-President of Genetic Metabolic Dietitians International (GMDI).  Membership in other national professional organizations include the Academy of Nutrition and Dietetics (AND) and the Society of Inherited Metabolic Disease (SIMD).




Nicholas Ah Mew, M.D., is director of the Inherited Metabolic Disorders Program at Children’s National Hospital and is associate professor of Pediatrics at The George Washington University. He is a clinical geneticist and clinical biochemical geneticist whose primary research interests include urea cycle disorders, organic acidemias, and other disorders of ammonia metabolism. He is the principal investigator or co-PI of several projects funded through the National Institutes of Health and Patient-Centered Outcomes Research Institute. Dr. Ah Mew is the Children’s National site-PI and an active member of the NIH-funded Urea Cycle Disorders Consortium (UCDC). He has authored multiple publications and book chapters on hyperammonemia and urea cycle disorders and has lectured internationally on these topics.