Medical Board


Dr. Ethylin Wang Jabs, MD

Dr. Jabs is a clinical geneticist, with expertise in medical genetics, pediatrics, and craniofacial biology. In addition to her appointment as the vice chair of the Department of Genetics and Genomic Sciences at the Icahn School of Medicine at Mount Sinai Medical Center, she also heads the Interdisciplinary Training in Systems and Developmental Biology in Birth Defects at the Mount Sinai Graduate School of Biomedical Sciences. Before joining Mount Sinai, Dr. Jabs was at the John Hopkins School of Medicine, where she was the Dr. Frank V Sutland Professor of Pediatric Genetics, Director of the Center for Craniofacial Development and Disorders, and Director of the International Collaborative Genetics Research Training Program. She still holds the position of adjunct professor in pediatrics, medicine, and surgery at John Hopkins.

Dr. Jab’s research and clinical practice have focused on developmental genetics and patients with birth defects. Her clinical areas include prenatal diagnosis, birth defects, multiple congenital anomalies, craniofacial and limb anomalies, achondroplasia, macrosomia, micro- and macrocephaly, oral facial clefts, short stature, spina bifida and multiple associated syndromes like Crouzon’s, DiGeorge, Down’s, Fetal Alcohol, Fragile X and Turner’s syndromes. Dr. Jabs is an advisor to several parent support groups, including ‘Smile Train’.

Dr. Jab’s research focuses on unraveling the mechanisms underlying the mutations which cause birth defects and malformations. Her laboratory was responsible for the identification of the first human mutation in a homeobox-containing gene, MSX2, an important regulatory gene in development. In her studies on craniosynostosis, she discovered that similar mutations in the gene, fibroblast growth factor receptor 2 (FGFR2), cause both Jackson-Weiss syndrome and Crouzon syndrome. Dr. Jab’s team also validated novel genetic links underlying ‘sagittal craniosynostosis’, a common birth defect, where the bones on the side and top of the skull fuse prematurely. This genome-wide association study was published in a reputed medical journal, Nature Genetics in November, 2012. The group also demonstrated in a mouse model that inhibiting the protein p38 resulted in prevention of craniosynostosis in a rare genetic disorder, Beare-Stevenson cutis Gyrata syndrome (BSS).

For some of these conditions, Dr. Jabs demonstrated the association of advanced paternal age at conception. She has studied the increased frequency of spontaneous mutations arising in sperm with aging. She also initiated a database of clinical and genetic data for people with craniofacial disorders including those with Möbius syndrome, a rare neurological disorder, to help identify the genetic root of the condition. Dr. Jabs has published close to hundred research articles and book chapters on the genetics underlying craniofacial development and defects. Her research has been funded through multiple grants from the NIH, CDC, patient advocacy groups and Icahn School of Medicine


Dr. Jeffrey Fearon, MD

Dr. Jeffrey Fearon was raised in London, England and New Canaan, Connecticut. After graduating the Mt. Hermon School in Massachusetts, he received his B.A. from Brown University. He subsequently pursued post-baccalaureate studies at Columbia University and then attended medical school at the University of Cincinnati. After completing a full general surgery residency at the Harvard Fifth surgical service in Boston, he pursued a plastic surgery residency at the Massachusetts General Hospital, with Harvard Medical School. Following a one-year craniofacial fellowship at the Children’s Hospital of Philadelphia at the University of Pennsylvania, he joined Dr. Ian Munro at the Dallas Craniofacial Center as a director. Today, Dr. Fearon has an international practice that is limited to craniofacial surgery; specifically, the treatment of pediatric congenital birth defects.

Dr. Fearon is President Emeritis of the Texas Society of Plastic Surgeons, as well as President Emeritus of the American Society of Craniofacial Surgeons. He has also functioned as both Chief of Plastic Surgery and Chief of Pediatrics at Medical City Dallas Hospital. In addition to serving on the editorial board of the Journal of Plastic and Reconstructive Surgery, he has authored many scientific articles and book chapters, has received a U.S. patent for a bone distraction device, and remains actively engaged in clinical research. Dr. Fearon and his wife have three daughters. When not at work, he enjoys both surfing and heli-skiing.


Dr. Joan Richtsmeier, Ph.D

Joan Richtsmeier is Distinguished Professor of Anthropology at the Pennsylvania State University with faculty appointments in the Graduate Programs in Genetics and the Graduate Program Option in Bioinformatics and Genomics of the Huck Institutes of the Life Sciences.  She received her PhD from Northwestern University in 1985 and joined the faculty of the Department of Cell Biology and Anatomy, Johns Hopkins University School of Medicine in 1986. In 1999 she became the 55th woman to achieve the rank of Professor at Johns Hopkins School of Medicine since the school opened in 1893. In 2000, Dr. Richtsmeier moved her lab to the Pennsylvania State University where she works with undergraduate students, graduate students, postdoctoral scholars and colleagues to understand the developmental basis of disorders of the head. Dr. Richtsmeier was the State of Maryland’s Outstanding Young Scientist in 1990, received the W. Barry Wood Award for Outstanding preclinical teaching at Johns Hopkins in 1993, the Distinction in the Life Sciences Award from the College of the Liberal Arts Penn State in 2012, and the Faculty Scholar Medal for Outstanding Achievement in the Life and Health Sciences at Penn State in 2014. Her work is supported by grants from the National Science Foundation, the National Institutes of Health, and the Wellcome Trust.

Dr. Richtsmeier’s research focuses on changes in developmental processes that occur in craniofacial diseases like craniosynostosis and Down syndrome. She and collaborators use laboratory mice to model disease mechanisms and have established precise parallels in human and mouse craniofacial disease phenotypes. Her team seeks to understand the complex genetic and developmental basis of variation in head shape in development, especially changes that occur prenatally. Her recent work focuses on the chondrocranium, a transient, cartilaginous endoskeleton of the head that protects the brain and principal sense organs before skull bones mineralize. Working with bioengineers, her team seeks to understand how mechanical stimuli of the cells of the formative brain, skull, and other tissues contribute significantly to the process of craniofacial development. Understanding the interactions of genetic signaling systems and biomechanical forces fundamental to the functional and structural association of developing tissues in normal craniofacial development and conserved over evolutionary time is essential to understanding how changes in development cause disease.


Dr. Jesse Goldstein, MD

Dr. Jesse Goldstein is an attending surgeon in the Department of Plastic Surgery at University of Pittsburgh Medical Center and the Division of Plastic Surgery at the Children’s Hospital of Pittsburgh (CHP) of UPMC. He specializes in the treatment of children and adolescents with cleft lip, cleft palate, and disorders of the craniofacial skeleton including craniosynostosis and Pierre Robin sequence. He serves as Director of the Pediatric and Craniofacial Surgery Fellowship at CHP.

Dr. Goldstein was born in the San Francisco Bay Area and moved to Pennsylvania for his undergraduate and medical training at the University of Pennsylvania. While at Penn, Dr. Goldstein completed a Doris Duke clinical research fellowship in Pediatric Trauma and outcomes research. His plastic surgery residency was completed at Georgetown University hospital before returning to Philadelphia for a fellowship in Craniofacial and Pediatric Plastic surgery at the Children’s Hospital of Philadelphia and the University of Pennsylvania Medical Center.

Dr. Goldstein’s clinical focus is centered around improving the function and appearance of children born with craniofacial disorders. He specializes in rhinoplasty, cleft lip/palate repair, orthognathic surgery, cranial reconstruction for craniosynostosis, and cranio-maxillofacial distraction osteogenesis.

Additionally, Dr. Goldstein is actively involved in research focused on outcomes in cleft and craniofacial surgery and he is founding member of several multi-centered outcomes studies. His work is funded by societal, national, and international scientific agencies.


Dr. Aris Economides, PhD

See the source image

Dr. Aris N. Economides received his Ph.D. in Biochemistry from Michigan State University in 1992, and promptly joined Regeneron Pharmaceuticals.  He currently holds the position of Vice President, leading two groups:  Genome Engineering Technologies, and Skeletal Diseases Therapeutic Focus Area.  In addition, he is a co-founder of Regeneron Genetics Center (RGC), where he is also Head of Functional Modeling.  Dr. Economides co-invented Cytokine Traps, VelociGene®, and VelocImmune®, all part of an integrated methodology for target discovery, validation, and the generation of biologic drugs such as the IL1 and VEGF traps, as well as therapeutic antibodies.  More recently, he has been developing a new method for Enzyme Replacement Therapy (ERT), one that addresses two of the main limitations of current ERT, namely immunogenicity and inefficient uptake by the tissues most affected in the corresponding Lysosomal Diseases.  As part of his involvement with the RGC, Dr. Economides has been working to elucidate the molecular pathophysiology of genetically-driven disorders.  An example is his work in Fibrodysplasia Ossificans Progressiva, where he and his team discovered a novel mechanism that explains important aspects of FOP’s pathophysiology and pinpoints a new potential route to therapy. 


Dr. John Dahl, M.D., Ph.D., M.B.A.

Pediatric Otolaryngologist, Seattle Children’s; Assistant Professor in the Department of Otolaryngology, Head and Neck Surgery at the University of Washington

Dr. Dahl obtained a PhD in Pharmacology and an MBA from The Pennsylvania State University and earned his medical degree from Sidney Kimmel Medical College of Thomas Jefferson University. He completed residency training in Otolaryngology- Head and Neck Surgery at the University of North Carolina, Chapel Hill, and a fellowship in Pediatric Otolaryngology – Head and Neck Surgery at Seattle Children’s Hospital.  Dr. Dahl has a significant interest in basic and clinical scientific research related to tracheal development, tracheal malformations, and airway management in patients with complex craniofacial disorders.


Dr. David Ornitz, M.D., Ph.D.

Alumni Endowed Professor of Developmental Biology at Washington University

He is a graduate student in the MD-PhD program at the University of Washington. He was at the forefront of developing transgenic mouse technology for in vivo models of cancer and as tools to identify transcriptional regulatory elements. As a postdoctoral fellow in the Department of Genetics at Harvard Medical School, I developed a binary genetic system to model cancer and other lethal diseases in mice. I also discovered that heparan sulfate proteoglycans are required for Fibroblast Growth Factor (FGF) signaling. This discovery linked cell-surface and extracellular matrix molecules to growth factor signaling pathways. Over the past 27 years, I have led an independent research laboratory at Washington University School of Medicine. My research has primarily focused on the in vivo function of FGFs in development, physiology, response to injury, and cancer. My laboratory has made significant contributions to cardiovascular, inner ear, pulmonary, and skeletal system biology. My laboratory has designed and engineered knockout and conditional knockout alleles, tetracycline regulatory alleles, and transgenic mouse lines for several FGF ligands and receptors, allowing us to probe gene function,
understand mechanisms regulating organogenesis, model human disease, and develop genetic tools to model and test therapeutic strategies. I have also been very interested in understanding how FGF signaling pathways interact with other signaling pathways and transcription factors to coordinate complex developmental, injury response, regenerative processes, and cancer.


Dr. Moosa Mohammadi, Ph.D.

Professor of Biochemistry and Molecular Pharmacology at New York University

Dr. Mohammadi received his Ph.D. in Biochemistry from University of Zurich in Switzerland and completed his postdoctoral training in the laboratory of Dr. Joseph Schlessinger in the Department of Pharmacology at New York University School of Medicine. In 1997, he established his own research group in the same department where he is currently an Associate Professor. Dr. Mohammadi’s group investigates the mechanisms of fibroblast
growth factor (FGF) signaling using a variety of methods including x-ray crystallography, surface plasmon resonance, steady-state kinetic analysis and cellular signaling in cultured cells.

Legal Disclaimer

Legal Disclaimer

The contents of this website, such as text, graphics, images, and other material contained on the website
(“Content”) are for informational purposes only and do not constitute medical advice; the Content is not intended
to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician
or other qualified health provider with any questions you may have regarding a medical condition. Never disregard
professional medical advice or delay in seeking it because of something you have read on this website.

In the event of a medical emergency, call a doctor or 911 immediately. This website does not recommend or endorse
any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the
Site. Reliance on any information provided by this website is solely at your own risk.

The Site and the Content are provided on an “as is” basis.

Links to educational content not created by Born a Hero are taken at your own risk. Born a Hero is not responsible
for the claims of external websites and education companies.