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Students

PhD Student Profiles

Meet our PhD students. 

The Biostatistics PhD program provides training in the theory of probability and statistics in biostatistical methodology. The program is unique in its emphasis on the foundations of statistical reasoning and data science. Students complete rigorous training in real analysis-based probability and statistics, equivalent to what is provided in most departments of mathematical statistics and in advanced data science.

Anik Burman

Anik Burman

PhD Candidate
2022–2023

MStat: Statistics, Indian Statistical Institute, 2022
BStat: Statistics, Indian Statistical Institute, 2020

Office: E3037 
Email: aburman3@jhu.edu

Adviser: Abhirup Datta
Co-Adviser: Elizabeth Ogburn

Anagh Chattopadhyay

Anagh Chattopadhyay

PhD Candidate
2023–2024

MStat: Statistics, Indian Statistical Institute, 2023
BStat: Statistics, Indian Statistical Institute, 2021

Office: E3031
Email: achatto4@jh.edu

Adviser: Martin Lindquist
Co-Adviser: Elizabeth Ogburn

Wanlu Chen

Wanlu Chen

PhD Candidate
2021–2022

BS: Mathematics & Applied Mathematics, Renmin University, 2019

Office: E3030 
Email: wchen111@jhmi.edu

Adviser: Hongkai Ji

Andrew Chin

Andrew Chin

PhD Candidate
2021–2022

MS: Statistics, UC Davis, 2018
BS: Statistics, UC Davis, 2017

Office: E3039 
Email: achin23@jhu.edu

Adviser: Akihiko Nishimura

Jung In Choi

Jung In Choi

PhD Candidate
2022–2023

BS: Statistics/Mathematics, Seoul National University, 2022

Office: E3039 
Email: jchoi177@jhmi.edu

Adviser: Akihiko Nishimura
Co-Adviser: Martin Lindquist

Charlotte Clapham

Charlotte Clapham

PhD Candidate
2021–2022

BA: Mathematics, Carleton College, 2021

Office: E3031 
Email: cclapha1@jhmi.edu

Adviser: Karen Bandeen-Roche

Alyssa Columbus

Alyssa Columbus

PhD Candidate
2022–2023

MS: Applied & Computational Mathematics, Johns Hopkins Whiting School of Engineering, 2022
BS: Mathematics, UC Irvine, 2018

Office: E3031
Email: acolumb1@jhu.edu

Adviser: Brian Caffo
Co-Adviser: Stephanie Hicks

Leon Di Stefano

Leon Di Stefano

PhD Candidate
2019–2020

MS: Mathematics & Statistics, University of Melbourne, 2013
BA: Mathematics & Statistics/Linguistics, University of Melbourne, 2012

Office: E3037 
Email: lds@jhu.edu

Adviser: Kasper Hansen
Co-Adviser: Elizabeth Stuart

Yuzheng Dun

PhD Candidate
2020–2021

BS: Statistics, Huazhong University of Science & Technology, 2020

Office: E3033 
Email: ydun2@jhu.edu

Adviser: Nilanjan Chatterjee
Co-Adviser: Akihiko Nishimura

Xin Zhi (Cindy) Fang

Xin Zhi (Cindy) Fang

PhD Candidate
2022–2023

BS: Bioinfomatics & Computational Biology, University of Toronto, 2022

Office: E3030 
Email: xfang23@jhmi.edu

Adviser: Stephanie Hicks

Sam Fansler

Sam Fansler

PhD Candidate
2023–2024

MS: University of Michigan, Biostatistics, 2023
BA: Butler University, Statistics/Music (Cello), 2021

Office: E3035
Email: sfansle1@jh.edu

Adviser: Karen Bandeen-Roche

Martina Fu

PhD Candidate
2019–2020

BS: Mathematical & Computational Sci/Biology, Stanford University, 2017

Office: E3032 
Email: mfu15@jhmi.edu

Adviser: Nilanjan Chatterjee

Sierra Grey-Coker

Sierra Grey-Coker

PhD Candidate
2022–2023

BA: Mathematics, University of Maryland Baltimore County, 2022

Office: E3031
Email: sgreyco1@jhmi.edu

Adviser: Michael Rosenblum

Gege Gui

Gege Gui

PhD Candidate
2020–2021

ScM: Biostatistics, Johns Hopkins Bloomberg School of Public Health, 2018
BS: Mathematics & Applied Mathematics, Sun Yat-sen University, 2016

Office: E3037 
Email: ggui1@jhmi.edu

Adviser: Scott Zeger
Co-Adviser: Kasper Hansen

Helen Guo

Helen Guo

PhD Candidate
2023–2024

BA: Applied Mathematics, Pomona College, 2020                       

Office: E3037
Email: hguo51@jh.edu

Adviser: Ilya Shpitser
Co-Adviser: Elizabeth Ogburn 

Marina Hernandez

Marina Hernandez

PhD Candidate
2021–2021

BA: Statistics, Cornell University, 2020

Office: E3038 
Email: mherna55@jhmi.edu

Adviser: Ciprian Crainiceanu
Co-Adviser: Brian Caffo

Lily Koffman

Lily Koffman

PhD Candidate
2021–2022

MS: Biostatistics, Harvard T.H. Chan School of Public Health, 2021
BA: Statistics, Harvard University, 2019

Office: E3040 
Email: lkoffman2@jhmi.edu

Adviser: Ciprian Crainiceanu

Mingyuan Li

Mingyuan Li

PhD Candidate
2023–2024

ScM: Biostatistics, Johns Hopkins BSPH, 2023
BS: Statistics, Peking University, 2021

Office: E3038
Email: mli169@jhmi.edu

Adviser: Ciprian Crainiceanu

Shuai Li

Shuai Li

PhD Candidate
2022–2023

BS: Computing Mathematics, City University of Hong Kong, 2020

Office: E3040 
Email: sli201@jhu.edu

Adviser: Hongkai Ji
Co-Adviser: Ni Zhao

Bolun (Peter) Liu

Bolun (Peter) Liu

PhD Candidate
2022–2023

BS: Statistics, University of Washington, 2022

Office: E3035 
Email: bliu68@jhmi.edu

Adviser: Elizabeth Stuart
Co-Adviser: Elizabeth Ogburn

Yanxi (Nora) Liu

Yanxi (Nora) Liu

PhD Candidate
2023–2024

BS: Mathematics, UCLA, 2023

Office: E3030
Email: yliu587@jh.edu

Adviser: Ingo Ruczinski

Wenxuan Lu

Wenxuan Lu

PhD Candidate
2023–2024

BS: Applied Mathematics & Statistics, JHU, 2023

Office: E3038
Email: wlu15@jhu.edu

Adviser: Nilanjan Chatterjee

Yu Lu

Yu Lu

PhD Candidate
2021–2022

MS: Biostatistics, Harvard School of Public Health, 2022
BS: Statistics, Nankai University, 2020

Office: E3035 
Email: ylu136@jhmi.edu

Adviser: Ciprian Crainiceanu

Yi Man

Yi Man

PhD Candidate
2021–2022

BA: Mathematics, UC Berkeley, 2021

Office: E3034 
Email: yman4@jhu.edu

Adviser: Hongkai Ji

Emily Norton

Emily Norton

PhD Candidate
2022–2023

MS: Oceanography, University of Hawaii at Manoa, 2013
BA: Biology, Bowdoin College, 2010

Office: E3032 
Email: enorton7@jhmi.edu

Adviser: Nilanjan Chatterjee

Sowmya Parthiban

Sowmya Parthiban

PhD Candidate
2022–2023

MSE: Biomedical Engineering, Johns Hopkins Whiting School of Engineering, 2022
BS: Cognitive Science, UC San Diego, 2020

Office: E3036 
Email: sparthi1@jhu.edu

Adviser: Stephanie Hicks

Alessio Pignatelli

Alessio Pignatelli

PhD Candidate
2023–2024

BS: Engineering Sciences, Harvard University, 2023

Office: E3033
Email: apignat1@jh.edu

Adviser: Vadim Zipunnikov

Michelle Qin

Michelle Qin

PhD Candidate
2023–2024

BA: Statistics, Harvard University, 2023

Office: E3036
Email: mqin8@jh.edu

Adviser: John Jackson
Co-Adviser: Elizabeth Stuart

Grace Ringlein

Grace Ringlein

PhD Candidate
2022–2023

MS: Physics & Astronomy, University of Pennsylvania, 2020
BA: Physics, University of Pennsylvania, 2020

Office: E3037 
Email: gringle1@jhmi.edu

Adviser: Elizabeth Stuart

Joseph Sartini

Joseph Sartini

PhD Candidate
2021–2022

BS: Operations Research & Financial Engineering, Princeton University, 2021

Office: E3038 BSPH
Email: jsartin1@jhu.edu

Adviser: Scott Zeger

Emily Scott

Emily Scott

PhD Candidate
2019–2020

ScM: Biostatistics, Johns Hopkins BSPH, 2019
BS: Biological Sci/Mathematical Biology, University of Pittsburg, 2016

Office: E3035 BSPH
Email: escott29@jhu.edu

Adviser: Scott Zeger

Kinnary Shah

Kinnary Shah

PhD Candidate
2021–2022

BS: Biomathematics, Rutgers University, 2021

Office: E3040
Email: kshah37@jhmi.edu

Adviser: Stephanie Hicks

Jiafang Song

Jiafang Song

PhD Candidate
2021–2022

MS: Biostatistics, Yale University, 2021
BS: Pharmaceutical Science, Peking University, 2018

Office: E3040
Email: jsong100@jhu.edu

Adviser: Abhirup Datta

Shengtao Wang

PhD Candidate
2023–2024

BS: Statistics, Fudan University, 2021

Office: E3036
Email: swang315@jhmi.edu

Adviser: Martin Lindquist

Zitong Wang

Zitong Wang

PhD Candidate
2021–2022

BA: Economics/Mathematics, Holyoke College, 2018

Office: E3034 
Email: zwang238@jhmi.edu

Adviser: Scott Zeger
Co Adviser: Akihiko Nishimura

Yujie (Phyllis) Wei

Yujie (Phyllis) Wei

PhD Candidate
2021–2022

BA: Mathematics, Wellesley College, 2021

Office: E3036 
Email: ywei43@jhu.edu

Adviser: Nilanjan Chatterjee

Shiyao (Jennifer) Xu

Shiyao (Jennifer) Xu

PhD Candidate
2020–2021

ScM: Biostatistics, Johns Hopkins Bloomberg School of Public Health, 2020
BS: Biological Science, Tsinghua University, 2018

Office: E3032 
Email: sxu42@jhmi.edu

Adviser: Elizabeth Ogburn
Co Adviser: Akihiko Nishimura

Jianing Yao

Jianing Yao

PhD Candidate
2023-2024

ScM: Biostatistics, Johns Hopkins BSPH, 2023
BS: Applied & Computational Mathematics/Psychology, USC, 2020

Office: E3030
Email: jyao37@jhmi.edu

Adviser: Stephanie Hicks

Meklit Yimenu

Meklit Yimenu

PhD Candidate
2023–2024

BA: Biochemistry & Molecular Biology, Lake Forest College, 2023

Office: E3039
Email: myimenu1@jh.edu

Adviser: Kasper Hansen

Wentao Zhan

Wentao Zhan

PhD Candidate
2020–2021

BS: Mathematics, Fudan University, 2020

Office: 3033 
Email: wzhan3@jhu.edu

Adviser: Hongkai Ji
Co Adviser: Abhirup Datta

Ruzhang Zhao

Ruzhang Zhao

PhD Candidate
2019–2020

BS: Mathematical Sci, Tsinghua University, 2019

Office: E3039
E-mail: rzhao@jhu.edu

Adviser: Hongkai Ji
Co Adviser: Nilanjan Chatterjee