Who We Are


Sean O'Leary, MD, MPH

Dr. O'Leary is a Pediatric Infectious Diseases specialist and Associate Professor of Pediatrics at the University of Colorado. He received a BA in Environmental Studies from Brown University in 1991 and graduated from University of Texas Houston Medical School in 1996. After completing pediatric residency at The Children's Hospital in Denver in 1999, he moved to Fort Collins where he practiced as a general pediatrician for 8 years. Dr. O’Leary is the director of the Colorado Children’s Outcomes Network (COCONet), Colorado’s pediatric practice-based research network. His research focuses on identifying barriers to vaccination and developing and testing interventions to address those barriers. He serves as the liaison to the Advisory Committee on Immunization Practices (ACIP) for the Pediatric Infectious Diseases Society. He is also on the AAP’s Committee on Infectious Diseases (Red Book Committee). He serves as a co-chair of the Policy Committee for the Colorado Children’s Immunization Coalition (CCIC) and co-chair of the Immunization Committee for the Colorado Chapter of the AAP.

Contact: Email | 303.724.1582

Sean O'Leary, MD, MPH

Sarah Brewer, MPA

Dr. Brewer is Assistant Professor of Family Medicine and serves as Associate Director for the Colorado Children’s Outcomes Network, a state-wide practice based research network (PBRN) of pediatric practices in Colorado focused on answering clinically relevant research questions. She has experience in designing and conducting health services and patient-centered outcomes research using qualitative, quantitative and mixed methods.  Her research interests include disease prevention and establishment of healthy behavior in pediatric care, the role of community in refugee health during resettlement, and effective implementation of community engagement in health research and the health care system.  Dr. Brewer joined the Children’s Outcomes Research Program (COR) in 2011 and has worked on a range of topics in pediatric and adult health outcomes. In addition to her research, she is passionate about the effective integration of community-based pedagogical strategies including service-learning, community engagement, and equitable co-learning in the medical education continuum.  She earned a PhD in Health and Behavioral Sciences from the University of Colorado Denver, a graduate certificate in Public Health Sciences from the Colorado School of Public Health, and Master of Public Administration with a focus in health policy from University of Colorado Denver, and. B.A. in International Studies and German Languages and Literature from the University of Denver.

Contact: Email | 303.724.6927‚Äč