Our ETS PhD Student Community

Explore the diverse research interests of our students as they build expertise through rigorous training at the intersection of epidemiogy, biostatistics, and translational science.

Min Choi
Minhyuk "Min" Choi, MPH

Pronouns
he/him/his

Education
Columbia University (MPH, Biostatistics); Korea University (BA, Public Health Policy and Management)

Cohort
2025

Research Interests

  • Genetic research and causal inference approaches to explore Alzheimer’s disease and related dementias (ADRD)
  • Identification of genetic and environmental factors to inform ADRD prevention and treatment strategies

 

Min's profile

Sylvia Jebiwott
Sylvia Jebiwott, MPH

Pronouns
she/her/hers

Education
Yale University (BS, Biology); University of California, Berkeley (MPH, Infectious Diseases and Vaccinology)

Cohort
2025

Research Interests

  • Epidemiology of malaria in low-transmission settings
  • Health impacts of chronic malaria infection and malaria immunology
  • Cost-effectiveness of malaria interventions

     

Sylvia's profile

Brianan Kiernan
Brianán Kiernan, MSc

Pronouns
she/her/hers

Education
Trinity College Dublin (MSc, Global Health), Boston College (BA, International studies)

Cohort
2025

Research Interests

  • Applying epidemiological methods to deepen our understanding of reproductive health outcomes and disparities in the U.S. and globally
  • Abortion, maternal mortality and morbidity, pregnancy, contraception, and gender 
  • Effects of reproductive health policies on health outcomes

     

Brianán's profile

Ruben Vargas
Ruben Vargas, MPH

Pronouns
he/him/his

Education
University of California, Berkeley (BA, Integrative Biology & Molecular and Cell Biology; MPH, Epidemiology and Biostatistics)

Cohort
2025

Research Interests

  • Using advanced epidemiologic and statistical methods—including causal inference and multilevel modeling.
  • Examining how social and structural determinants produce health disparities in minority populations. 
  • Identifying mechanisms driving inequities in cardiometabolic and chronic disease outcomes to inform data-driven interventions and policy.

     

Ruben's profile

Glorie Mbaka
Gloire Mbaka Onya, MPH

Pronouns
he/him/his

Education
University of Aberdeen, MPH

Cohort
2024

Research Interests

  • Malaria and infectious disease epidemiology
  • Global health and the use of mathematical models to inform malaria public health strategies.

 

Gloire's profile

Rebecca Mendez
Rebecca Mendez, MPH

Pronouns
she/her/hers

Education
San Francisco State University (BS in Cell & Molecular Biology, MPH in Community Health Education)

Cohort
2024

Research Interests

  • Effects of racialized stress on health in young adults from diverse racial backgrounds
  • Molecular epidemiology investigating how racial discrimination and racialized stress affect biological pathways related to cancer
  • Application of advanced epidemiological methods to reduce health disparities and improve cancer outcomes in vulnerable populations

     

Rebecca's profile

Brittany Morin
Brittany Morin, MS

Pronouns
she/her/hers

Education
University of Massachusetts, Lowell (BA, Psychology); University of New Hampshire (MS, Health Data Science)

Cohort
2024

Research Interests

  • Speech and language features to describe variants of frontotemporal dementia (FTD)
  • Women’s aging, cognitive function, and the application of data science to manage hormonal changes and menopause symptoms

 

Brittany's profile

Joan Shim
Joan Shim, MPH

Pronouns
she/her/hers

Education
University of California, Berkeley (BA, Integrative Biology), University of California, Berkeley (MPH, Epidemiology and Biostatistics)

Research Interests

  • Using advanced epidemiological methods for health disparities research.
  • Investigating the role of social determinants of health in producing inequities and disparities in cardiometabolic health and other health outcomes.

     

Joan's profile

Frank Wolf
Frank Wolf, MPH

Pronouns
they/them/theirs

Education
Johns Hopkins Bloomberg School of Public Health (MPH), University of Pennsylvania: Wharton School of Business (BSc in Economics), University of Pennsylvania: College of Arts and Sciences (BA in Biology)

Cohort
2024

Research Interests

  • Leveraging big data and computational methods to identify and address the needs of marginalized and medically underserved populations.

     

Frank's profile

Deborah Adeyemi
Deborah Adeyemi, MPH

Pronouns
she/her/hers

Education
University of Miami (BS, Psychology), Emory University (MPH, Epidemiology)

Cohort
2023

Research Interests

  • Health disparities in Black women and women of color
  • Improving health equity in reproductive health and maternal health morbidity and mortality
  • Perinatal, reproductive, clinical, and surveillance epidemiology
  • Reproductive oncology, including cervical and ovarian cancer

     

Deborah's Profile

Claire Mcdonell
Claire McDonell, MS

Pronouns
she/her/hers

Education
University of California, Davis (BS, Biological Sciences), University of California, San Francisco (MS, Global Health Sciences)

Cohort
2023

Research Interests

  • Causal inference, community-engagement, and drug use harm reduction to advance health equity for marginalized populations
  • Research on clinical trials and observational studies to inform social policy and improve health outcomes for people who use drugs

 

Claire's profile

Mia Navarro
Mia Navarro, MS

Pronouns
she/her/hers

Education
Stanford University (MS, Epidemiology and Clinical Research); University of California, Los Angeles (BS, Computational and Systems Biology)

Cohort
2023

Research Interests

  • Impact of structural determinants of health on resource allocation strategies and health policies
  • Influence of conflict, geographic residence, and life-course poverty on healthcare-seeking behaviors and longitudinal health outcomes

     

Mia's profile

Brittany Peterson
Brittany Peterson, MPH

Pronouns
she/her/hers

Education
Roanoke College (BA Sociology), The George Washington University (MPH, Epidemiology)

Cohort
2023

Research Interests

  • Design and implementation of RCTs
  • Reducing infectious disease burden and improving child health outcomes in low- and middle-income countries.
  • Malnutrition outcomes and antimicrobial resistance burden following mass antibiotic distribution in West Africa

     

Brittany's profile

Ariktha Srivathsan
Ariktha Srivathsan, MPH

Pronouns
she/her/hers

Education
Indian Institute of Technology Guwahati (B.Tech, Biotechnology), Yale University (MPH, Epidemiology of Microbial Disease)

Cohort
2023

Research Interests

  • Infectious disease modeling to inform global health policy.
  • Developing and applying statistical methods for observational studies on infectious diseases and antimicrobial resistance. 
  • Leveraging mathematical modeling to advance public health research and decision-making.

     

Ariktha's profile

Cozie Gwaikolo
Cozie Gwaikolo, MD, MAS

Pronouns
-

Education
Cuttington University (BS, Biology); University of Liberia (MD, General Medicine); University of California, San Francisco (MAS, Clinical Research)

Cohort
2022

Research Interests

  • Epidemiological research focused on reducing the burden of tropical and infectious diseases in low- and middle-income settings
  • Experience studying post-acute sequela of COVID-19 and its determinants in Liberia with the Ministry of Health

     

Cozie's profile

Aimee Lansdale
Aimee Lansdale, MS

Pronouns
she/her/hers

Education
Duke University (BA, Global Health & International Comparative Studies), Stanford University (MS, Community Health and Prevention Research)

Cohort
2022

Research Interests

  • Pathways linking environmental exposures to health outcomes
  • Impact of environmental exposures, chemicals, and contaminants on maternal health and early child development
  • Informing public health policy to reduce harmful exposures and address inequities in maternal and child health.

 

Aimee's profile

Rachel Murro
Rachel Murro, MPH

Pronouns
she/her/hers

Education
City University of New York School of Public Health & Health Policy (MPH, Community Health), Cornell University (BS, Human Biology, Health, & Society)

Cohort
2022

Research Interests

  • Sexual and reproductive health, contraception, abortion and pregnancy desires
  • Ethical research using a reproductive justice and harm reduction lens  
  • Qualitative methods, sampling "hidden" populations, social epidemiology, and causal inference

 

Rachel's profile

Jack Taylor
Jack Taylor, MAS

Pronouns
he/him/his

Education
University of California, San Francisco (MAS, Clinical Research), University of California, Davis (BS, Biochemistry and Molecular Biology)

Research Interests

  • Research on frontotemporal dementia (FTD).
  • Develop and validate the REMOTE-FTD program.
  • Assess FTD-related comorbidities, medications, and lab results, while exploring representation in FTD research relative to the broader FTD patient population.

     

Jack's profile

Mary Thoma
Mary Thoma, MPH

Pronouns
she/her/hers

Education
University of San Diego (BA, Biology), Columbia University (MPH, Epidemiology)

Cohort
2022

Research Interests

  • Risk factors of cognitive decline and dementia.
  • the role of social isolation in dementia risk by exploring various plausible causal pathways (decreased cognitive stimulation, changes in psychosocial well-being, sensory impairment, etc). 

 

Mary's profile

Whitney Wells
Whitney Wells, MSc

Pronouns
She/her/hers

Education
Stanford University (BA, Human Biology, MA, Sociology), University College London (MSc, Social Epidemiology)

Cohort
2022

Research Interests

  • Examining the health impacts of family support policies and their ability to address existing health inequities.
  • Using quasi-experimental methods and natural experiments to generate evidence to ultimately inform evidence-based policymaking.

 

Whitney's profile

Carrie Chan
Carrie Chan, MSN, CPNP, MPH

Pronouns
she/her/hers

Education
University of California, Berkeley (BA, Public Health); University of Pennsylvania (BS, Nursing); University of Pennsylvania (MS, Nursing); Harvard University (MPH, Epidemiology)

Cohort
2021

Research Interests

  • Leveraging informatics, machine learning, and predictive modeling to improve pediatric healthcare

     

Carrie's Profile

Kate Chirikova
Kate Chirikova, MAS

Pronouns
she/her/hers

Education
Higher School of Economics University, Moscow, Russia (BA, Sociology; MA, Sociology), University of California, San Francisco (MAS, Clinical Research)

Cohort
2021

Research Interests

  • Cancer health disparities in gynecologic and breast cancers
  • Social epidemiology, causal inference, and geospatial analysis of social, built, and healthcare environments

     

Kate's profile

James Najera
James Antonio Najera, MS

Pronouns
-

Education
University of California, San Diego (BS, Microbiology; BS, Public Health), University of Washington (MS, Genetic Epidemiology)

Cohort
2021

Research Interests

  • Population genetics, gene-environment interaction, and big data analytics for omics
  • Genomic research to improve health equity among underserved communities

     

James's profile

Maia Scarpetta
Maia Scarpetta, MPH

Pronouns
she/her/hers

Education
Reed College (BA, Psychology), University of New Mexico (MPH, Epidemiology) 

Cohort
2021

Research Interests

  • Intersection of substance abuse and infectious disease epidemiology, specifically hepatitis C transmission and non-fatal overdose
  • Health inequities among people who use drugs using advanced dyadic, multilevel, and latent variable methods grounded in community engagement

     

Maia's profile

Mai Sedki
Mai Sedki, MD, MPH

Pronouns
she/her/hers

Education
Wayne State University (BA in Romance Languages, BS in Biology & Psychology); Wayne State University - School of Medicine (MD); University of California, Berkeley (MPH, Epidemiology)

Cohort
2021

Research Interests

  • Identifying risk factors for gastrointestinal and liver cancers, with an emphasis on steatotic liver disease.
  • Improving risk stratification methods for the surveillance of liver cancer and other complications associated with liver disease.
  • Studying the factors contributing to the incidence of liver cancer on a population level, aiming to enhance early detection, prevention, and patient care strategies. 

 

Mai's profile

Tanvi Srivastava
Tanvi Srivastava, MBA, MPH

Pronouns
she/her/hers

Education
Indira Gandhi Institute of Technology (BTech, Mechanical & Automation Engineering), Carnegie Mellon University (MBA), University of California, Berkeley (MPH, Epidemiology)

Cohort
2021

Research Interests

  • Investigating cancer disparities, social drivers, and modifiable risk factors to reduce population cancer burden
  • Epidemiologic studies on colorectal cancer etiology, prostate cancer progression, financial toxicity, and ionizing radiation in dementia
  • Impact of physical activity, socioeconomic status, race/ethnicity, and nativity on breast cancer survival and risk, specifically among Asian American wom

     

Tanvi's profile

Carolyn Smith Hughes
Carolyn Smith Hughes, MS

Pronouns
she/her/hers

Education
University of Wisconsin - Madison (BS, Genetics, Life Sciences Communication), University of California, San Francisco (MS, Global Health Sciences)

Cohort
2020

Research Interests

  • Perinatal epidemiology and maternal and newborn health outcomes.
  • Evaluation of US and global maternal and newborn health policies.
  • Prenatal, intrapartum, and postpartum experiences of care.
  • The application of a range of methods to study and improve experiences and outcomes for birthing persons, infants, and their loved ones.

 

Carolyn's profile

Caitlin Turner
Caitlin Turner, MPH

Pronouns
she/her/hers

Education
University of California, Davis (BS, Psychology, Mathematics Emphasis), University of California, Berkeley (MPH, Epidemiology/Biostatistics)

Cohort
2019

Research Interests

  • Researching social determinants of health for sexual and gender minority populations.
  • Identifying policy determinants of disparities in substance use and poor mental health outcomes.
  • Translating research findings to positive, structural, anti-capitalist impact.

     

Caitlin's profile

Michelle DeVost
Michelle DeVost, MPH

Pronouns
-

Education
California State University, Northridge (BS, Mathematics, Pure Mathematics and Classical Applied Mathematics concentrations); UCLA (MPH, Biostatistics)

Cohort
2018

Research Interests

  • Statistical consulting, biomarker validation, sexual health behaviors, and HIV prevention
  • Study design, statistical methods for clinical trials, mathematical modeling
  • Leveraging electronic medical records to improve population health and intervention implementation

 

Michelle's profile

Sepehr Hashemi
Sepehr Hashemi, DMD

Pronouns
-

Education
UC Davis (BS in Genetics with emphasis on genomics); Harvard School of Dental Medicine

Cohort
 

Research Interests

  • Predicting common surgical outcomes and complications
  • Maxillofacial transplantation platforms
  • Palliative therapy of oral cancer complications
  • Molecular assessment of treatment-specific complications in breast and prostate cancers.

 

Sepehr's profile

Nita Mukand
Nita Mukand, PharmD, MBA, MPH

Pronouns
she/her/hers

Education
Wesleyan University (BA, Biology), University of Illinois at Chicago (PharmD and MBA), Harvard T.H. Chan School of Public Health (MPH)

Cohort
 

Research Interests

  • Intersection of social and spatial epidemiology
  • Geographic distribution of tobacco-related health inequities
  • Tobacco control policies

 

Nita's profile