• Robert Graham Center Staff

    Hoon Byun, Economist
    Hoon Byun serves as an economist at the Robert Graham Center, where he takes part in research initiatives involving the primary care physician workforce, medical education, and how public health aligns with primary care. Prior to joining the Center in February 2019, Hoon assisted the CFO's Office of the American Red Cross on Volunteer Workforce engagement and retention, and prior to that, he was involved in health services research and corporate administration at the Johns Hopkins University and Health System, respectively. Hoon holds a Bachelor’s in economics from the College of William & Mary, a Master’s in economics from the University of Virginia, and a 2016 Doctorate in Public Health from the Johns Hopkins Bloomberg School of Public Health.


    Mark Carrozza, Director, HealthLandscape
    Mark Carrozza joined the Graham Center in March 2014 after the Graham Center acquired HealthLandscape. He is directly responsible for the development of successful web-based data analysis and mapping systems. Recent research includes creating “hot spots” of child abuse based on child abuse treatment records and police calls for service, exploring race disparities in Southwest Ohio, and monitoring the effect of ACA implementation on the homeless population and access to health care. Mark is also an alumni of the Larry A. Green Visiting Scholars Program at the Robert Graham Center, where he focused research related to Social Capital, Access to Care, and Health Status. He earned a master’s degree in Sociology from the University of Cincinnati and is currently completing a doctorate in the same program.


    Jené Grandmont, Senior Manager for Application Development & Data Services, HealthLandscape
    Jené Grandmont joined the Robert Graham Center in March 2014 with the acquisition of HealthLandscape. Her primary responsibilities include managing geographic data, deploying and maintaining client sites, and working with users to understand how they can use data to make better informed decisions. She has extensive experience in social science research, including study design and advanced analytic techniques. Research interests include issues the count, maintenance, and distribution of the health care workforce and access to healthy foods and opportunities for active living. Jené earned a Master’s degree in Sociology from the University of Cincinnati.


    Yalda Jabbarpour, MD, Director
    Yalda Jabbarpour is a family physician in Washington, DC and Director of the Robert Graham Center for Policy Studies. She graduated from the Georgetown University School of Medicine in 2008 and completed her residency at the Georgetown University/Providence Hospital Family Medicine Residency Program. Upon graduation, she worked as a family physician for Scripps Health Medical Group in San Diego, California. She returned to Washington, DC in 2015 to serve as the Robert L Phillips Health Policy Fellow at the Robert Graham Center and currently serves as Director. Her research interests include workforce issues such as provider burnout and the delivery and financing of primary health care.


    Anuradha Jetty, Senior Epidemiologist
    Anuradha Jetty joined the Robert Graham Center in July 2014 and currently serves as Senior Epidemiologist. Her work is focused on conducting secondary data analysis of large databases to assess the health care workforce, access, utilization, costs, and outcomes. Her career in public health includes designing and conducting cross-sectional studies to evaluate the "Open Heart Surgery Observation Health Education program” for high school students at Inova Heart and Vascular Institute and the “National Longitudinal Transition Study” of students with disabilities at the Department of Health Administration and Policy, George Mason University. She received her Bachelor of Homeopathy Medicine and Surgery from Osmania University, Hyderabad, India, and her Master of Public Health (Epidemiology) from George Mason University, Fairfax, VA.


    Douglas Kamerow, Senior Scholar
    Douglas Kamerow joined the Robert Graham Center in March 2014 as the Center’s Senior Scholar in Residence. He also teaches medical students and family medicine residents at Georgetown University as a Professor of Family Medicine and is an Associate Editor and regular columnist for the global medical journal The BMJ. Previously, Dr. Kamerow was a Chief Scientist in health services and policy research at the non-partisan research institute RTI International. For 20 years before that, he led a range of clinical, health policy, and research activities in the US Public Health Service, including the US Preventive Services Task Force, retiring as an Assistant Surgeon General in 2001. Dr. Kamerow received an AB from Harvard College, an MD from the University of Rochester, and an MPH from Johns Hopkins University.


    Radhika Laddha, Junior Data Analyst
    Radhika Laddha joined the Robert Graham Center in August 2022. Her primary responsibilities include researching various methods/ways on how to enhance the delivery of primary care, depending on various factors (environmental, geographical, educational, family history, etc.), toward the goal of creating and curating evidence to inform policies which support increased access to family medicine, and behavioral health and primary care resources. She has extensive experience in social science research, and health science research, including various machine learning, natural language processing, data mining, data visualization, relational databases and AI topics and algorithms. She graduated from George Mason University with a Bachelor's degree in Computational and Data Sciences and a minor in Data Analysis and Piano/Singing Performance.


    Jessica McCann, User Engagement Specialist, HealthLandscape
    Jessica McCann joined HealthLandscape in May 2018. Her responsibilities include direct user support, development of support materials, and new user training. She returns to the Academy after having previously served as Analytic Geographer with the Robert Graham Center. Her interests include access to care and health equity. She earned her BS in Geography and Regional Planning from Salisbury University and her MA in Geography and Urban Studies from Temple University.


    Jeongyoung Park, Ph.D, Research Director
    Jeongyoung Park joined the Robert Graham Center in February 2023 and currently serves as Research Director. Her research interests include health policy issues with special emphasis on primary care, such as health care delivery and payment system changes, and its impact on health workforce and patient outcomes. She received her PhD in health policy and administration (with a concentration in Economics) at the University of North Carolina at Chapel Hill in May 2007. She also completed a two-year postdoctoral fellowship in the Health Services Research unit at the University of Pennsylvania. She received her MPH from Seoul National University, Seoul, Korea Graduate School of Public Health in August 2000, and her BSN from Seoul National University, Seoul, Korea College of Nursing in February 1995. 

    Jennifer Rankin, Senior Manager for Research & Product Services, HealthLandscape
    Jennifer Rankin joined HealthLandscape in March 2015. Prior to this, she served as the Geospatial Informatics Senior Analyst for the Robert Graham Center. She directs all geospatial projects for HealthLandscape, most notably the UDS Mapper. Her career has focused on issues related to primary care and access to care, with a special interest in the geography of access to health care. She has worked with the HRSA Maternal and Child Health Bureau, the Texas Association of Community Health Centers, and the Association of State and Territorial Health Officials. Jennifer earned her Master of Health Administration from the Tulane School of Public Health and Tropical Medicine, as well as her Master of Science in Health Information Sciences and Master of Public Health and PhD in Public Health Informatics from The University of Texas Health Science Center at Houston.


    Anam Siddiqi, Research Project Manager
    Anam Siddiqi joined the Robert Graham Center in July 2022 as the Research Project Manager. Her main responsibilities consist of project managing the RGC information management portfolio and serving as a data steward. She is also working to support the center’s social entrepreneurial initiatives, champion the center’s key dissemination channels, and coordinate tactical learning opportunities. Prior to joining the Robert Graham Center, Anam was a health communications specialist who supported various clients such as the National Institutes of Health and the United States Environmental Protection Agency. Anam is currently pursuing a Master of Public Health in Health Policy Analysis and Evaluation from the University of Maryland, College Park. 


    Michael Topmiller, Geographic Information Systems Strategist, HealthLandscape
    Michael Topmiller joined the Robert Graham Center in March 2014 following the acquisition of HealthLandscape. His primary responsibilities include managing data, creating map services, setting up and managing Community Data Portals, and providing training and technical support to users. Michael has expertise in GIS and qualitative research methods, and has past experience conducting interviews, analyzing qualitative data, and working as a GIS specialist for community-based research (CBPR) projects in Mexico, North Carolina, and Cincinnati. His current research interests include health disparities, Latino health care issues in non-traditional destinations, health and the built environment, and participatory GIS. Michael earned an MA in Latin American Studies from San Diego University and a BA in Mathematics and Secondary Education from the University of Kentucky.


    Sandra Wingate-Bey, Center Administrator
    Sandra Wingate-Bey joined the Robert Graham Center as Center Administrator in 2017. Previously, she was Director of Administrative Services at a national nonprofit organization based in Washington, DC, where she was also responsible for the daily operations of the headquarters office. Sandra has served within the nonprofit sector for the past 28 years. During that time, she managed a national awards program, more than two dozen standing and ad hoc committees staffed by member volunteers, as well as managed board elections. She also served as Assistant Board Secretary. In that role, she supported the President, President-Elect, and Immediate Past President, in their work as chairs of several committees that oversee some of the organization’s key activities. She earned a bachelor’s degree in business administration from South Carolina State University.