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Gerard Berry

M.D., FACMG

Director, Metabolism Program

Boston Children’s Hospital Harvey Levy Chair in Metabolism

Boston Children’s Hospital Professor of Pediatrics

Harvard Medical School

Dr. Berry is the Harvey Levy Chair in Metabolism at the Boston Children’s Hospital, and Professor of Pediatrics at the Harvard Medical School. He is the Director of the Metabolism Program at BCH, and the Harvard Medical School Biochemical Genetics Training Program. He received an MD degree from the Jefferson Medical College and completed his residency in pediatrics at the Thomas Jefferson University Hospital in 1978. He then began a combined fellowship in biochemical genetics and pediatric endocrinology at the Children’s Hospital of Philadelphia, and joined the faculty of the University of Pennsylvania School of Medicine as an Assistant Professor of Pediatrics in 1981. Dr. Berry was promoted to Professor of Pediatrics in 1995. He was the recipient of the 2004 Emmanuel Shapiro SIMD Award. Dr. Berry is the president of the Society for Inherited Metabolic Disorders (“SIMD”). He is also co-chair of the Undiagnosed Disease Network‘s Metabolomics Working Group.

Gerard Berry

M.D., FACMG

Director, Metabolism Program

Boston Children’s Hospital Harvey Levy Chair in Metabolism

Boston Children’s Hospital Professor of Pediatrics

Harvard Medical School

Dr. Berry is the Harvey Levy Chair in Metabolism at the Boston Children’s Hospital, and Professor of Pediatrics at the Harvard Medical School. He is the Director of the Metabolism Program at BCH, and the Harvard Medical School Biochemical Genetics Training Program. He received an MD degree from the Jefferson Medical College and completed his residency in pediatrics at the Thomas Jefferson University Hospital in 1978. He then began a combined fellowship in biochemical genetics and pediatric endocrinology at the Children’s Hospital of Philadelphia, and joined the faculty of the University of Pennsylvania School of Medicine as an Assistant Professor of Pediatrics in 1981. Dr. Berry was promoted to Professor of Pediatrics in 1995. He was the recipient of the 2004 Emmanuel Shapiro SIMD Award. Dr. Berry is the president of the Society for Inherited Metabolic Disorders (“SIMD”). He is also co-chair of the Undiagnosed Disease Network‘s Metabolomics Working Group.

Recent Publications

Phenotypic Variability and Paternal Inheritance of a CHD8 Variant Causing Intellectual Developmental Disorder With Autism and Macrocephaly Confirmed by Epigenetic and Structural Analyses

Published On 2025 Dec 17

Journal article

CONCLUSION: We describe the case of IDDAM caused by a paternally inherited CHD8 variant. Our findings highlight the importance of considering parental inheritance in IDDAM diagnoses and suggest epigenetic and structural biology analyses as valuable tools for reclassifying VUS when variant pathogenicity remains uncertain.


An optimized variant prioritization process for rare disease diagnostics: recommendations for Exomiser and Genomiser

Published On 2025 Oct 22

Journal article

CONCLUSION: This study provides an evidence-based framework for variant prioritization in ES and GS data using Exomiser and Genomiser. These recommendations have been implemented in the Mosaic platform to support the ongoing analysis of undiagnosed UDN participants and provide efficient, scalable reanalysis to improve diagnostic yield. Our work also highlights the importance of tracking solved cases and diagnostic variants that can be used to benchmark bioinformatics tools. Exomiser and...