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Health Services Research

Michael Ong

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Michael Ong, MD PhD, is a Professor in Residence of Medicine & Health Policy and Management at UCLA. He is Chief of the Hospitalist Division at the VA Greater Los Angeles Healthcare System. Dr. Ong is a practicing general internist. His research interests focus on improving the delivery of appropriate and efficient health care by general internal medicine physicians. His research has applied this focus in several areas of general medicine, including hospital-based care, mental health, and tobacco control. Dr.

Joann G. Elmore

Dr. Joann G. Elmore is a professor of health policy and management at the UCLA Fielding School of Public Health and of medicine in the Division of General Internal Medicine, in the Department of Medicine at the David Geffen School of Medicine at UCLA. She also serves as Director of the UCLA National Clinician Scholars Program. She is a national leader in academic general internal medicine and has a distinguished career as an investigator, mentor, administrator and educator. 

Isomi Miake-Lye

Isomi Miake-Lye is an Adjunct Assistant Professor in the Department of Health Policy and Management, and a researcher at the VA Greater Los Angeles Healthcare System. She has expertise in evidence synthesis, mixed methods research, implementation science, and organizational behavior. Her research focuses on how the organization of health systems affects the use of evidence and evidence-based practices. She is Associate Director of the VA Evidence Synthesis Program in West Los Angeles and teaches Program Evaluation courses at UCLA.

Risha Gidwani

Dr. Gidwani is a health economist whose research evaluates both the costs and health outcomes associated with healthcare services. Her work focuses on the impact of benefit design on quality of care and patient financial burden. She has been Principal Investigator on several grants aimed at studying the value of cancer care and/or end-of-life care. Dr. Gidwani uses a variety of methods to study the costs and outcomes associated with health service utilization, including techniques for causal inference from observational data and decision analysis. Dr.

Marissa Seamans

Marissa Seamans, PhD, MSPH, is an Assistant Professor in the Department of Epidemiology. Dr. Seamans’ research focuses on the intersection of social epidemiology and pharmacoepidemiology to address substance use and mental health. Her work explores the use of large healthcare databases to examine prescription drug use in families and the effectiveness of treatments for mental health and substance use disorders. Methodologically, Dr.

Yusuke Tsugawa

Yusuke Tsugawa, MD, MPH, PhD is assistant professor of health policy and management, as well as assistant professor of medicine at UCLA. Prior to joining the faculty at UCLA, he was a health specialist at the World Bank group and a research fellow at Beth Israel Deaconess Medical Center/Harvard Medical School. Dr. Tsugawa received his PhD in Health Policy from Harvard University with a concentration in statistics, and his MPH from Harvard School of Public Health.

Roch A. Nianogo

Roch Nianogo is an Assistant Professor in the Department of Epidemiology at the UCLA Fielding School of Public Health. He is a physician and scientist of preventive medicine and epidemiologist. Dr. Nianogo’s research strives to help reduce the burden of preventable chronic diseases, promote the health and wellbeing of patients and populations, especially those most vulnerable, and assist clinical, public health and policy decision-making. To this end, Dr. Nianogo has developed research interests that are both methodological and substantive in nature.

Amy Wohl

Dr. Amy Wohl is an Epidemiologist who has worked for the Los Angeles County Department of Public Health (DPH)/Health Services (DHS) for 26 years. She currently oversees the Program Evaluation Unit in the Los Angeles County Health Agency and DHS Office of Planning and Data Analytics where she conducts research and evaluation on health outcomes and service utilization for high-need Medi-Cal clients and DHS patients.

Akihiro Nishi

Akihiro Nishi is an Assistant Professor in Department of Epidemiology. He is a social epidemiologist and experimental social scientist specialized in social network and behavioral intervention. His current areas of research include improving economic inequality and well-being inequality in online social networks (e.g.

Corrina Moucheraud

Corrina Moucheraud is an Assistant Professor in the Department of Health Policy and Management. She is a global health policy and systems researcher, focused on the question: how can we deliver high-quality, efficient, equitable, sustainable health services in low-resource, system-constrained settings? She conducts both quantitative and qualitative research, including with primary data (surveys, interviews, focus groups, clinical observation) and secondary data, as well as economic evaluation research such as cost-effectiveness analyses.

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