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Amy L. Schwarzhoff, MS, MBA, CIP

Amy L. Schwarzhoff

Relies on extensive experience in leadership positions in institution, independent, and governmental Institutional Review Boards to support investigators while they navigate multicenter research studies.


Laike St. A. Stewart, DVM, Diplomate, ACLAM

Karen E. Burke

Effectively builds cross-functional teams that can achieve business and research objectives while assuring optimal animal welfare and regulatory compliance.


Zev Sunleaf

Zev Sunleaf

Promoting collaboration between academia and industry by developing relationships with other institutions, biotechnology, pharmaceutical, and medical device companies to continue research and to commercialize CHOP research discoveries and technology-based ventures.


Denise E. Sabatino, PhD

Denise E. Sabatino

The research in the Sabatino Laboratory is focused on hemophilia, an inherited bleeding disorder. The interests of the laboratory include the study of variants of coagulation factor VIII to understand the biochemical properties of these proteins and to identify novel variants with enhanced function, and the development of gene-based therapeutic approaches for treating hemophilia.


Avni B. Santani, PhD

Avni B. Santani

As director of Clinical Laboratories, Strategic Partnerships and Innovation at the Center for Applied Genomics, Dr. Santani oversees the clinical genomics program for the diagnosis of common and rare genetic disorders.


Robert T. Schultz, PhD

Robert T. Schultz

Dr. Schultz's research involves using magnetic resonance imaging to understand brain mechanisms and to create biomarkers that predict who has autism spectrum disorder (ASD), who will develop the disorder, and who will respond well to different interventions. More recently, he has developed a technology and innovation lab to exploit advances in perceptual computing, in order to develop more robust measurements of quantitative traits.


Lisa A. Schwartz, PhD

Lisa A. Schwartz

Dr. Schwartz's research focuses on behavioral and psychosocial aspects of cancer and its treatment in adolescents and young adults (AYAs), a group of patients with unique medical and psychosocial challenges. Most of her current studies aim to understand and improve self-management among AYAs.


Philip V. Scribano, DO, MSCE

Philip V. Scribano

Dr. Scribano's areas of interest and research involve the epidemiology and prevention of child maltreatment and intimate partner violence, technology use in healthcare, and health services to children in foster care.


Alix E. Seif, MD, MPH

Alix E. Seif

Dr. Seif's research centers on manipulating the human innate and immune systems to treat children with acute lymphoblastic leukemia (ALL). The long-term goal of her research is to identify innate and adaptive immune mechanisms that can be used to treat pediatric ALL more effectively, and with less toxicity, than existing therapies.


Rachana Shah, MD, MSTR

Rachana Shah

Dr. Shah's research is centered on understanding obesity and its related complications. Her current work includes clinical and translational studies exploring pathophysiology and modulation of obesity-related adipose tissue and systemic inflammation using human cell lines and clinical trials. She is also involved in clinical studies of outcomes and risk factors of polycystic ovarian syndrome and type 2 diabetes in teens.


Ophir Shalem, PhD

Ophir Shalem

Dr. Shalem’s research focuses on translational target discovery for a range of neurodegenerative diseases. He combines technology development of large-scale CRISPR-based perturbation screens with application of such technology together with additional genomic approaches.


Kathy Shaw, MD, MSCE

Kathy Shaw

Dr. Shaw is an emergency medicine physician, clinical epidemiologist, and national leader in the fields of pediatric emergency medicine and quality and patient safety. She is most noted for her research in the diagnosis and management of acute pediatric illness and injuries, most notably UTI,
dehydration, and bronchiolitis.


Jeffrey H. Silber, MD, PhD

Jeffrey H. Silber

Dr. Silber is the director of the Center for Outcomes Research at CHOP, and is an internationally known authority on outcomes measurement and severity adjustment for both adult and pediatric applications.


Rebecca A. Simmons, MD

Rebecca A. Simmons

The principal goal of Dr. Simmons' research program is to elucidate the underlying molecular mechanisms that link an aberrant intrauterine milieu to the later development of diseases in adulthood. She has made many seminal contributions to the understanding of the role that epigenetic modifications play in developmental programming of obesity and type 2 diabetes.


Kim Smith-Whitley, MD

Kim Smith-Whitley

Dr. Smith-Whitley's research focuses on sickle cell survivorship: predicting and preventing long-term, chronic, and life-threatening complications of the disease.


Yuanquang Song, PhD

Yuanquang Song

Dr. Song works to elucidate the cellular and molecular basis governing the formation, maintenance, and function of neural circuits under physiological and pathological conditions, using both Drosophila and mammalian models.


Jonathan M. Spergel, MD, PhD

Jonathan M. Spergel Headshot

Dr. Spergel focuses on translational research in IgE-mediated and non-IgE-mediated food allergy, examining novel clinical methods for desensitization and curing food allergy. His other main projects are to identify predictive factors for severity of reactions using molecular, physiologic, and clinical parameters.


Nancy B. Spinner, PhD

Nancy B. Spinner

Dr. Spinner's research focuses on the etiology and expressivity of pediatric developmental disorders. She uses genomic methods to focus on the multisystem disorder Alagille syndrome and biliary atresia, a likely heterogeneous and poorly understood condition. She is also interested in using genomic tools to continue to improve diagnostic rates for constitutional genetic disorders.


Joseph W. St. Geme, III, MD

Joseph W. St. Geme

Dr. St. Geme's research focuses on bacterial pathogenesis, with an emphasis on defining the molecular and cellular determinants of Haemophilus influenzae and Kingella kingae disease.


Virginia A. Stallings, MD

Virginia A. Stallings

Dr. Stallings is working on intervention trials involving three chronic diseases with nutrition-related abnormalities resulting in meaningful adverse outcomes: cystic fibrosis (new drugs), sickle cell disease (vitamin A) and chronic pancreatitis (enzyme replacement drug).


Charles A. Stanley, MD

Charles A. Stanley Headshot

Dr. Stanley’s lab has identified many of the genes and syndromes associated with congenital hyperinsulinism including ABCC8, GCK, GLUD1, and Turner and Beckwith syndromes. Working with clinical and rodent model studies, his lab team has identified distinctive phenotypes of these disorders, including diazoxide unresponsiveness, leucine sensitivity, and protein sensitivity. Dr. Stanley continues to seek new diagnostic and treatment paradigms for infants with acquired and genetic disorders of hyperinsulinism.


Andrew P. Steenhoff, MBBCh, DCH

Andrew P. Steenhoff

Dr. Steenhoff is medical director of the Global Health Center at Children's Hospital. He serves as a global health advocate for children, seeking to optimize mutually beneficial partnerships between clinical and academic institutions in diverse settings.


Jay Storm, MD

Phillip B. Storm

Dr. Storm directs CHOP's translational brain tumor laboratory and maintains a research program focusing on cell signaling cascades in pediatric brain tumors. The goal of this research is to understand and identify potential targets that can be developed into clinical therapy. His team is also leading collaborative efforts to de-silo research by engaging in open source platforms and cloud-based sharing.


Kathleen E. Sullivan, MD, PhD

Photo of Kathleen E. Sullivan

Dr. Sullivan's research focuses on new and rare immunodeficiencies. She has a long-standing interest in one of the most common of the primary immunodeficiencies – chromosome 22q11.2 deletion syndrome. She also investigates common variable immunodeficiency, as well as the genetics and epigenetics of systemic lupus erythematosus.


Dava Szalda, MD, MSHP

Dava Szalda

Dr. Szalda's research focuses on the transition from pediatric to adult care for young adults with medical complexity and cancer survivorship.