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Meet Current PhD Students

(This is an opt-in listing and does not include all students in the department)

PhD Candidates in Biostatistics (BIS)

PhD Candidates in Chronic Disease Epidemiology (CDE)

  • Kerry is a PhD student in the Chronic Disease Epidemiology Department at the Yale School of Public Health. She holds an MSc in Health Data Science from the London School of Hygiene & Tropical Medicine and worked as a junior statistician at the Oxford Vaccine Group before coming to Yale. She is interested in using real-world data sources to explore treatment patterns and outcomes associated with emerging cancer therapies.
  • Abigail (Abby) Girgis is a doctoral candidate in the Department of Chronic Disease Epidemiology at the Yale School of Public Health. She is a member of the Cancer Prevention and Control training program, with research interests spanning gynecological cancers, racial and ethnic health disparities, cost-effectiveness analysis, and health outcomes research. Her dissertation explores cervical cancer, aiming to identify critical factors that advance cancer elimination and improve health outcomes across the care continuum, including prevention, early detection, diagnosis, treatment, and survivorship. Before pursuing her doctoral studies, Abby gained experience in the pharmaceutical industry, with roles at Bristol Myers Squibb, Pfizer, and Johnson & Johnson. Her work spanned immunology epidemiology, chronic disease health economics and outcomes research, and infectious disease global public...
  • Jiaqi Hu is a doctoral student at the Department of Chronic Disease Epidemiology, Yale School of Public Health. Having graduated from Peking University in 2021 with a Bachelor of Art degree, she continued to study and conduct research in genetic epidemiology. Her research interest is to identify genetic variants that increase risk for complicated diseases and combine genetic and environmental information to predict individual risk of disease.
  • Esther Kang is a PhD candidate in the Department of Chronic Disease Epidemiology with a primary focus on genetic epidemiology. She is a member of Dr. Andrew DeWan's lab in the Center for Perinatal, Pediatric and Environmental Epidemiology (CPPEE). Her current research investigates genetic contributions underlying fetal growth, anthropometric traits, cardio-metabolic outcomes, and other complex traits.
  • Yining Li is a doctoral student at the Department of Chronic Disease Epidemiology, Yale School of Public Health. She finished her undergraduate study at Peking University with a Bachelor of Medicine degree. She is currently interested in incorporating analytical methods to identify common variants related to different phenotypes, especially those in chronic non-communicable diseases.
  • Reed Mszar, MPH, MS, is a PhD student in the Department of Chronic Disease Epidemiology at the Yale School of Public Health. His research encompasses cardiovascular and clinical epidemiology, health outcomes and disparities research, and cardio-oncology. Before returning to Yale, he worked in the Division of Clinical Effectiveness and Decision Science at the Patient-Centered Outcomes Research Institute (PCORI) where he supported the development of research funding announcements and managed a diverse portfolio of funded studies. Reed also conducted research at Yale's Center for Outcomes Research and Evaluation (CORE) leading projects focused on patient-reported outcomes and shared decision-making, subclinical atherosclerosis imaging, atrial fibrillation ablation disparities, and financial hardship from medical bills.
  • Katerina Santiago is a PhD student in the Department of Chronic Disease Epidemiology at Yale School of Public Health. She earned her Master of Public Health (MPH) from the University of Miami, Miller School of Medicine and her Bachelor of Science (BS) degree in Biology with Honors from the University of Miami. Prior to her doctoral studies, Katerina worked as a research associate at the University of Miami, Miller School of Medicine where her research focused on occupational exposures and their association with various health effects such as injuries and cancer and how such risks vary by race and ethnicity. Her current research interests are epidemiology of cancer, with a specific interest in gastrointestinal cancers, and how genetic risk interacts with environmental and occupational exposures.
  • Sunny Siddique is a doctoral candidate in the Department of Chronic Disease Epidemiology at the Yale School of Public Health. He holds a Master of Public Health (MPH) in Epidemiology from Columbia University and a Bachelor of Arts (BA) in Molecular Biology from Princeton University. Prior to Yale, Sunny served as a Cancer Research Training Award Fellow at the National Cancer Institute where he studied age-related functional outcomes among cancer survivors, pain management among cancer patients visiting the ER, and follow-up and surveillance strategies to improve detection of cancer recurrence. Sunny has also conducted substantial work in analyzing cancer center catchment areas and identifying neighborhood level disparities in cancer treatment and outcomes. His current research interests include: risk factors and screening for early-onset gastrointestinal cancers (particularly...

PhD Candidates in Environmental Health Sciences (EHS)

  • Soma Barsen is a doctoral student in the Department of Environmental Health Sciences at the Yale School of Public Health. Her PhD research focuses on nano- and microplastics, evaluating exposures and assessing the associated health risks. Soma earned her undergraduate degree in cell biology and neuroscience from the University of British Columbia in Vancouver, Canada. She then pursued a Master of Public Policy (MPP) at the School of Public Policy at Simon Fraser University to better understand how science can inform public policy and the need to incorporate multiple perspectives, disciplines, and methods of analysis. As part of her MPP, she focused on driving evidence-based change by using scientific findings as the foundation for policymaking. Soma’s master's thesis was a novel study that she independently developed and designed, exploring household sources of microplastics...
  • Giselle Bellia is a PhD Student at the Yale School of Public Health, following her graduation from the department of Environmental Health Sciences MPH program. She holds a BA in psychology from Seton Hall University. She is interested in psychiatric epidemiology, with a specific interest in environmental influences on fetal and childhood neurodevelopment. She also enjoys learning about innovative research and statistical methodologies to explore these interests.
  • Francisco is a first-year Ph.D. student in the Department of Environmental Health Sciences at the Yale School of Public Health and an NSF Graduate Research Fellow. He holds a Bachelor of Science in Biology from the University of Puerto Rico, Rio Piedras. Francisco has a background in Ecology, studying climate through the use of tree rings. His research interests meet in the health effects of climate variability, particularly extreme weather events.
  • Chengyi Lin is a Ph.D. student in the Department of Environmental Health Sciences at the Yale School of Public Health. She is interested in the health effects of air pollution.
  • Athina Lisgara is a first-year Ph.D. student in Environmental Health Sciences at Yale School of Public Health. She earned her integrated Master's Degree in Environmental Engineering from University of Patras in Greece, focusing on Environmental Toxicology. For her Ph.D., she uses MALDI imaging mass spectrometry (MALDI MSI) for bottom-up proteomics to study neurodegenerative diseases in the brain. She also explores liver disease by developing novel metabolomic workflows coupled with MALDI MSI and applying deep learning techniques. Athina actively volunteers with Greek Women in STEM and the Yale Undergraduate Mentorship Program.
  • Jingyuan is a fourth-year PhD student in the Department of Environmental Health Sciences. She holds a master's degree in Social and Behavioral Sciences from YSPH and completed her undergraduate studies in Psychology at UC, San Diego. Her current research interests center around the early origins of neuropsychiatric disorders and possible transmission of disease risks across multiple generations due to adverse intrauterine exposures.
  • Jean is a PhD student in the Environmental Health Sciences department at YSPH. As a member of the Pollitt Lab, Jean is interested in measuring personal exposure to complex environmental pollutants using the Fresh Air wristband and understanding how these exposures can adversely affect human health. She is also interested in learning about statistical approaches for analyzing multivariate, high-dimensional non-parametric data. Jean earned her MPH from YSPH in 2019. Before coming back, she worked as an environmental health scientist at an environmental and risk sciences consulting firm based in Boston. Her work involved evaluating epidemiology and toxicology literature, as well as analyzing exposure assessment data in support of causation analyses in litigation and human health risk assessments.

PhD Candidates in Epidemiology of Microbial Diseases (EMD)

  • I am a third year PhD student in the Department of Epidemiology of Microbial Diseases. My research interest is in the implementation, evaluation and modeling of public health interventions and/or policies geared towards the control of infectious diseases such as HIV/AIDS, TB, hepatitis, and other diseases of global health importance.
  • Gladys is a PhD student (EMD) affiliated with the Aksoy lab. Her research interests focus on the dynamics and ecology of rodent-borne viruses. With a background in molecular biology and biomedical science, her long-term goal is to advance global health through public health research on emerging infectious diseases. Her prior research and surveillance experience spans both human and non-human viruses, with a particular focus on Influenza (SARI & ILI) and vector-borne Acute Febrile Illnesses.
  • Cole is a computational biologist with a background in ecology & evolutionary biology of infectious disease. They completed their MSc at the University of Alberta, and their undergraduate education at the University of Toronto. He works at the intersection of disease forecasting and climate epidemiology, and is particularly interested in developing methods to detecting the signal of climate change in patterns of infection, including outbreaks and case data.
  • Jack Carew is a PhD student in the Department of Epidemiology of Microbial Diseases. His research interests lie at the intersection of vector-borne diseases, climate modeling, global health, and human migration. He has collaborated with teams in Syria, Colombia, Jordan, and Cameroon on projects elucidating environmental and genetic characteristics of malaria and leishmaniasis transmission.
  • Melanie H. Chitwood is a postdoctoral associate in the Ted Cohen Lab. She is interested in using mathematical models to understand the transmission and prevalence of tuberculosis in high burden settings. Melanie received her BA from Hampshire College, her MS in Global Health and Population from the Harvard T.H. Chan School of Public Health, and her PhD in Epidemiology (Microbial Diseases) from Yale School of Public Health.
  • Kelly is a PhD student in the Department of Epidemiology of Microbial Diseases. Her research interests focus on reducing vector-borne and zoonotic diseases in low income countries by identifying social, biological, and environmental risk factors of disease. Specifically, she hope to use molecular epidemiological studies to gain insight into pathogenesis and to improve the prevention and control of infectious diseases.
  • Katherine (Katie) Hill is a PhD candidate in Epidemiology of Microbial Diseases working under the mentorship of Dr. Robert Heimer. She is also a Public Health Workforce Development Fellow with the Office of Public Health Practice. Her research interests include substance use, harm reduction, xylazine, kratom, sexual health and behavior, and improving the health of incarcerated individuals.
  • Jiye Kwon is a doctoral candidate in the Department of Epidemiology of Microbial Diseases. She is primarily interested in the intersection of pathogen genomics, bioinformatics, and mathematical modeling of infectious diseases. In the Pitzer-Weinberger Lab, she aims to integrate these areas to study the risk, development, and spatiotemporal spread of resistance and pathobionts to ultimately strengthen disease surveillance systems. Prior to her doctoral studies, Jiye earned her MPH with public health modeling concentration from Yale School of Public Health and conducted respiratory and gastrointestinal microbiome research with the Antibacterial Resistance Leadership Group (ARLG) while working in the Pettigrew Lab.
  • Torre is a PhD student in the Epidemiology of Microbial Diseases Department at the Yale School of Public Health. She holds an MSc in Biodiversity, Conservation, and Management from the University of Oxford and MA in Global Affairs form Tsinghua University, where she was a Schwarzman Scholar. She previously worked as interim chief of staff at Columbia University’s Center on Global Energy Policy and joined the founding team of the Columbia Climate School. She is interested in the anthropogenic drivers of zoonotic disease emergence, the impact of climate change on health systems, and national and international governance of pandemic prevention.
  • Elisabeth Nelson is a PhD candidate in the Epidemiology of Microbial Diseases. She is interested novel forms of vector control and in optimizing Wolbachia release programs to help with scale-up and expansion into low-resource endemic settings. She is currently working on a Wolbachia release randomized control trial in Belo Horizonte, Brazil. Her research is primarily focused in Belo Horizonte and Rio de Janeiro, Brazil.
  • Matthew Ponticiello (he/him) is an MD PhD student pursuing his PhD in Epidemiology of Microbial Diseases through the Yale School of Public Health. His research interests include implementation science, LGBTQ health, the treatment of opioid use disorder in criminal justice settings, and mood disorders. Matt is particularly interested in using qualitative methods to integrate social science and epidemiologic methods to improve the uptake of evidence-based care. Matt earned his B.S. in Global and Public Health Sciences at Cornell University. He then worked at the Weill Cornell Center for Global Health under Dr. Radhika Sundararajan. There, his research focused on community-based interventions to improve the uptake of HIV care among medically pluralistic communities. The majority of Matt's work was spent studying novel methods to improve the uptake of HIV care by collaborating with...
  • Eva Rest is an M.D.-Ph.D. student. Her research interests include computational approaches to heterogeneity in immune responses to infection, the biology of infectious diseases, vaccine efficacy, and public health. Eva hopes to use her M.D.-Ph.D. training to integrate clinical care for infectious diseases and immunological conditions with data-driven interventions. Eva earned her M.S. in Global Infectious Disease at Georgetown University where she studied respiratory disease dynamics and spatial heterogeneity in vaccination patterns in the lab of Dr. Shweta Bansal. Previously, she researched harm reduction strategies for substance use disorders at the University of Illinois Chicago's Institute for Health Research and Policy. She graduated magna cum laude from Georgetown University studying global health and health policy. Eva is passionate about disability representation and...
  • Hailey Robertson is a PhD student in Epidemiology of Microbial Diseases, working in Dr. Nate Grubaugh and Dr. Colin Carlson’s labs. She is also an NSF Graduate Research Fellow. Her research uses computational tools to understand how environmental changes impact the persistence and spread of vector-borne viruses.
  • Alexandra Savinkina is a PhD candidate in the Epidemiology of Microbial Diseases. She is interested in using mathematical modeling to answer questions at the intersection of infectious disease epidemiology and national and global health policy, with a focus on health equity. Prior to coming to Yale, Alexandra was a data analyst at the Centers for Disease Control and Prevention and then worked in simulation modeling at Boston Medical Center's infectious disease department. Her current work involves modeling vaccination scenarios and outcomes of various infectious disease interventions in the recent COVID-19 and mpox outbreaks, both within the US and globally.
  • Natasha Turyasingura is a third year PhD student in the Epidemiology of Microbial Diseases Department. Before coming to Yale, she worked as a Postbaccalaureate Scholar at the Novartis Institutes for BioMedical Research in Oncology Drug Discovery and with the Global Health unit and as an Intern in Translational Discovery at the Bill & Melinda Gates Medical Research Institute. She is interested in how we may use information generated from molecular epidemiological studies to develop novel therapies against diseases afflicting populations in low-resource settings.
  • Jo joined the Pitzer Lab as a PhD student in the Department of Epidemiology of Microbial Diseases in the Fall of 2021, where they use mathematical models to study the dynamics of infectious disease transmission and vaccination in low-resource settings, with a focus on typhoid fever. Prior to arriving at Yale, Jo worked on mathematical modeling and forecasting for influenza and COVID-19 at the Centers for Disease Control and Prevention. When Jo is not in class or building models, they enjoy cooking, climbing, and basketball.
  • Elizabeth is an MD-PhD student with a research interest in infectious disease epidemiology. Before coming to Yale, Elizabeth worked on quantifying the impact of the HIV epidemic on cancer incidence in the US as a fellow in the Infections and Immunoepidemiology Branch at the National Cancer Institute. She is interested in the use of infectious disease modelling to inform precision public health policy.

PhD Candidates in Health Policy & Management (HPM)

  • I am a PhD Candidate in Health Policy and Management at the Yale School of Public Health in the Economics Track, and hold an MPH from the Harvard TH Chan School of Public Health. My research focuses on the supply of behavioral healthcare and how policies can shape market forces to promote equitable access to high-quality care. I am particularly interested in contexts where healthcare providers’ incentives diverge from patients’ best interests or evidence-based practices, contributing to poorly functioning markets, unmet needs, and inequitable outcomes. My work aims to inform policies with the potential to drive systemic changes in behavioral healthcare delivery to better meet patient needs. I am on the 2024-2025 academic job market. See overviews of my job market paper and other dissertation work, where I evaluate the effects of a Medicaid policy (1115 Institutions for Mental Diseases...
  • Atalay Demiray, MD, MSc, is a second-year PhD student in Health Policy and Management at Yale University. As a first-generation college graduate from Turkiye, he is a prominent advocate of diversity and global health equity. Atalay earned his Master of Science degree in Health Economics, Policy, and Law from Erasmus University, an endeavor enriched by the Jean Monnet Scholarship. His master's thesis, titled "Regulation of Artificial Intelligence in Medicine: Upholding Public Health," was recognized as the Thesis of the Year in the Netherlands. Prior to pursuing his master’s degree, he obtained a Doctor of Medicine and a Bachelor of Arts in International Relations from Koc University. With a solid foundation in both medicine and international policy, Atalay is passionately working towards leveraging technological advancements to foster global health equity and improve public health...
  • Kim Gannon joined the Department of Health Policy and Management and is pursuing a disciplinary concentration in Economics. Her current work involves mental health and substance use disorder policy, specifically in harm reduction, the treatment industry, and long-term recovery. She received her BS in Economics, Mathematics, and Statistics from Michigan State University.
  • Kyle A. Gavulic was born in Flint, MI and raised in the small neighboring town of Goodrich. He holds a Bachelor of Arts in French and in Medicine, Health, and Society with a concentration in health economies and policies from Vanderbilt University. Prior to affiliating with Yale, Kyle served as a Health Policy Services Analyst in the Department of Health Policy in the Vanderbilt University School of Medicine. In this capacity, he conducted quantitative health services research under the supervision of Dr. Stacie Dusetzina, focusing on high-cost prescription drugs and the Food and Drug Administration’s accelerated approval pathway. Kyle was also a teaching and research assistant to Dr. Melinda Buntin. From July 2020 to May 2022, Kyle also served as Editorial Intern of JAMA Health Forum. Kyle is now a MD-PhD candidate pursuing a PhD in the Department of Health Policy and Management in the Yale...
  • Stephanie Horsfall (she/her) is a first-year PhD student in the Health Policy and Management department with a policy analysis concentration. Her research interests include social and political determinants of health, administrative burdens of welfare programs, and avenues of political power for medically underserved populations. Before her graduate studies, she served as a Research Assistant at the Medical Practice Evaluation Center at Massachusetts General Hospital, where she collaborated with non-profit organizations and program implementation experts to investigate the cost-effectiveness of novel HIV interventions for mothers and children across international settings.
  • Tiffany is a Research Associate I at the Yale Center for Outcomes Research and Evaluation (CORE) supporting the Yale University Open Data Access (YODA) Project. Prior to working at CORE, Tiffany received her Master of Public Health in Health Policy, with a certificate in Regulatory Affairs, from Yale School of Public Health. She also received her Bachelor of Science in Microbiology, Immunology, and Molecular Genetics from UCLA.
  • Ruijie Liu is a Ph.D. student in health policy and management with an economics concentration. Her research leverages causal inference methods to understand policy-related factors that influence health service utilization, health outcomes, and equity. Her recent work primarily focuses on the accessibility and quality of care in the mental health and substance use disorder field.
  • Sarah graduated in 2019 summa cum laude from Emory University with degrees in Economics and Biology. After several years in a clinical research lab studying post-cardiac surgery outcomes of pediatric patients with connective tissue disorders, she shifted focus to health economics. Sarah's senior thesis analyzed the effects of a novel public health initiative on neonatal health. At Yale, Sarah is pursuing joint MD and PhD degrees with the understanding that clinical experience and knowledge in health economics serve as complements, each informing and improving the practice of the other. Research interests include maternal and child health, payment models, incentives in healthcare markets, and markets for biologics.
  • Yuting Qian is a Ph.D student in the Department of Health Policy and Management, with a concentration in Economics. Her research interests include public policies and the health of the aging population, particularly people with cognitive impairment. She holds an MS in Health Policy and Economics from Weill Cornell Medical College of Cornell University.

PhD Candidates in Social and Behavioral Sciences (SBS)

  • I am a PhD candidate in the Department of Social and Behavioral Sciences, working under the mentorship of Professor Becca R. Levy. I am interested in aging and mental health topics. Specifically, I am involved in projects related to 1) understanding the effect of social determinants of health in cognitive aging and treatments outcomes in older adults, and 2) the design and evaluation of treatments to improve healthy longevity outcomes in people with dementia and mental health conditions, with an emphasis on non-pharmacological interventions.
  • I am a fifth year doctoral student (degree expected in 2024) in the Dept of Social and Behavioral Sciences and am being advised by Dr. Yusuf Ransome. I am passionate about addressing the commercial determinants of health (i.e., private sector activities that influence health) in a range of industries but especially the food & beverage industry. My dissertation research focuses on understanding how we can measure corporate activities that influence population health and how we can use the investment sector to nudge companies towards health-promoting practices. In the past, I have conducted research in the areas of health communication, global health, and medical education. I completed my MSc in Global Health and BSc in Kinesiology at McMaster University in Ontario, Canada. I then worked as a Research Assistant for the Dept of Family Medicine and Undergraduate Medical Education...
  • Whitney (she/her/hers) is a third-year Ph.D. candidate in the Social and Behavioral Sciences Department. She is training to be a mixed-methods social epidemiologist, conducting policy-relevant research on housing and health equality through the lens of two growing concerns: climate change and income inequalities. She has conducted research with the Housing and Health Equity Lab since 2020, working on multiple projects in the lab, including Project ReSIDe, a mixed-methods, longitudinal R01 investigating the impacts of rental assistance and diabetes, and the COVID Eviction Project, a series of interviews investigating the impacts of rental moratoria during the pandemic. She is committed to understanding how housing can impact mental and physical health equity. Her dissertation aims to identify how housing displacement due to extreme climate events and eviction impacts individual and...
  • Joy Lindsay is a Ph.D. student in the Social and Behavioral Sciences Department at the Yale School of Public Health. She is focused on using interdisciplinary community-based participatory research (CBPR) to achieve health equity for Black girls and promote mental and behavioral health in high-poverty U.S. school districts. Joy is also the Founder and CEO of Butterfly Dreamz, Inc., a 501(c)(3) nonprofit that equips girls to be confident leaders and supports them in achieving their dreams through mentorship, holistic leadership development, and intergenerational community action. Learn more about Joy and her work at joylindsay.com/my-bio.
  • Tony Maiolatesi is a combined-degree PhD student in the Departments of Psychology and Public Health. As an experimental psychologist, his research addresses questions about the role of prior experience and learning in shaping how people reason about others’ emotions. At Yale, he is a member of the Implicit Social Cognition lab and mentored by Dr. Melissa Ferguson.
  • Ashley is a first year Doctoral Student at YSPH in the Social and Behavioral Sciences (SBS) Department. She has a background in Medical Anthropology and her current research examines the intersections between racial & gender ideologies, knowledge production and Black maternal mortality within the United States. Prior to arriving at Yale, she worked as a Clinical Research Assistant at Boston Children’s Hospital Brazelton Touchpoints Center, where she collaborated with external partners to develop resources for underserved families.
  • Gul Saeed is a third-year PhD Candidate in the Department of Social and Behavioral Sciences at the Yale School of Public Health. She is also a Research Assistant at the Center for Methods in Implementation and Prevention Science, where she conducts suicide prevention research in low-resource settings in South Asia. Gul’s research primarily focuses on global mental health, suicide prevention, adolescent depression and anxiety, and implementation science. She also conducts research in the areas of health systems strengthening, global access to medicines, as well as anti-corruption. Before coming to Yale, Gul worked with the World Health Organization on multiple research projects focused on promoting good governance and anti-corruption in health and pharmaceutical systems. Gul completed her MPH in Social and Behavioral Health Sciences with a specialization in Global Health from the...
  • I am Bryce Puesta Takenaka, a queer, second-generation Filipino and Japanese writer, PhD student in the Department of Social and Behavioral Sciences at the Yale School of Public Health, and a T32 Research Fellow at the Center for Interdisciplinary Research on AIDS. Moving through an occupied Hawai'i formed my research interests in grappling with the afterlives of settler colonialism, imperialism, racial capitalism, U.S. militarism, tourism, urbanism, and environmental justice on queer and transgender health. I am constantly drawn to questions and debates that contend how Black and Pasifika Indigenous queer and transgender geographies are created, represented, occupied, shared, transformed, and imagined as they coalesce with movements toward anti-racist, anti-colonial, de-militarized, and abolitionist futures. I lean into transnational epistemologies to inform participatory and radical spatial...
  • Thi Vu is a PhD student in the Department of Social and Behavioral Sciences at Yale University. Prior to coming to Yale, she led various projects at the UNC Center for AIDS Research, Institute for Global Health and Infectious Diseases, and the UNC School of Nursing. She has experience in qualitative methods and community-engaged research in the areas of PrEP, HIV/AIDS, safety in assisted-living, and transitional care for persons with dementia. She is interested in psychosocial aspects of aging and caregiving among older adults with HIV/AIDS and older adults with dementia, and is currently working with Professor Joan Monin at the Social Gerontology Health Lab.