Siobhan Costanzo, MEd, MPH

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Siobhan Costanzo, MEd, MPH, is the Research Director in the Gender and Sexuality Development Clinic at Children's Hospital of Philadelphia.

Areas of Expertise: Adolescent Health, LGBTQ health, Epidemiology, Quantitative and qualitative research methods, Data management and analyses in SAS, Manuscript preparation and development, IRB protocol/application submissions, Grant development and submission
Locations: Specialty Care, Market Street
Appointments and Referrals: 1-800-TRY-CHOP (1-800-879-2467)


Siobhan Costanzo is a clinical research coordinator for PolicyLab and the Division of Adolescent Medicine at Children’s Hospital of Philadelphia (CHOP). She is Research Director in the Gender and Sexuality Development Clinic. Siobhan has experience in epidemiologic methods, adolescent health, violence prevention, data management, and quantitative and qualitative research methods. She currently works on projects aimed at improving the health outcomes of HIV+, LGBTQ and homeless youth, as well as projects reducing disparities for children with asthma.

Prior to her work at PolicyLab, Siobhan was a research coordinator at the Center for Injury Research and Prevention where she managed all research projects in the New Jersey Traffic Safety and Outcomes (NJ-TSO) Program, which uses administrative data linkages to advance traffic safety research and epidemiologic methods to inform policy focused on preventing motor vehicle crashes for adolescents. Siobhan was also a maternal and child health research fellow at Boston University's School of Public Health, where she studied the impact of pornography viewing on sexual behavior in young adults. She earned her MEd from Arizona State University and her MPH in Epidemiology and Maternal and Child Health from Boston University's School of Public Health.

Education and Training

Additional Training

INSTI® HIV-1/HIV-2 Rapid Antibody Testing

Qualitative Research Methods, University of Pennsylvania

Adolescent Mental Health First Aid

Undergraduate Degree

 BS in Human Development and Psychology - Binghamton University, Binghamton, NY

Graduate Degree

MPH in Epidemiology and Maternal and Child Health, Boston University's School of Public Health, Boston, MA

MEd in Elementary Education - Arizona State University, Tempe, AZ

Titles and Academic Titles

Research Director

Departments and Services

Research Interests

Health equity

Adolescent & LGBT health

Violence prevention

Mental health

Behavioral economics