People
CERSI Executive Committee
![G. Caleb Alexander, MD, MS](/sites/default/files/styles/profile_square/public/2023-05/new-caleb.jpg?h=08d3b7d5&itok=_UursYlF)
G. Caleb Alexander, MD, MS
ASSOCIATE PROFESSOR OF EPIDEMIOLOGY AND MEDICINE
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Tom Colonna, JD, PhD](/sites/default/files/styles/profile_square/public/2023-05/tom-colonna.jpg?h=3ea932e1&itok=L9LqW2AT)
Tom Colonna, JD, PhD
ASSOCIATE DIRECTOR OF REGULATORY SCIENCE, ADVANCED ACADEMIC PROGRAM
KRIEGER SCHOOL OF ARTS AND SCIENCES
KRIEGER SCHOOL OF ARTS AND SCIENCES
![Janet Holbrook, PhD, MPH](/sites/default/files/styles/profile_square/public/2023-05/janet-holbrook.jpg?h=3ea932e1&itok=uL1kBur4)
Janet Holbrook, PhD, MPH
ASSOCIATE PROFESSOR OF EPIDEMIOLOGY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Jodi Segal, MD, MPH](/sites/default/files/styles/profile_square/public/2023-05/jodi-segal.jpg?h=3ea932e1&itok=NAUaFul6)
Jodi Segal, MD, MPH
PROFESSOR OF MEDICINE, HEALTH POLICY & MANAGEMENT AND EPIDEMIOLOGY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
Other CERSI Investigators
![Sheriza Baksh, PhD](/sites/default/files/styles/profile_square/public/2023-05/baksh-imageresized.jpg?h=3ea932e1&itok=qPqSxcr1)
![Amanda Bicket, MD](/sites/default/files/styles/profile_square/public/2023-05/amanda-bicket-square.jpg?h=3ea932e1&itok=bWhsLqEF)
Amanda Bicket, MD
ASSISTANT PROFESSOR OF OPHTHALMOLOGY
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![ryan kennedy](/sites/default/files/styles/profile_square/public/2023-05/mark-bicket.jpg?h=3ea932e1&itok=N57dCRVx)
Mark C. Bicket, MD
ASSISTANT PROFESSOR OF ANESTHESIOLOGY AND CRITICAL CARE MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Shyam Biswal](/sites/default/files/styles/profile_square/public/2023-05/biswal-square.jpg?h=3ea932e1&itok=ouUd3kiN)
Shyam S. Biswal, PhD
PROFESSOR OF ENVIRONMENTAL HEALTH AND ENGINEERING
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
Taxiarchis Botsis, MSc, PhD
ASSISTANT PROFESSOR OF ONCOLOGY
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Hsien-Yen Chang](/sites/default/files/styles/profile_square/public/2023-05/chang-square.jpg?h=3ea932e1&itok=X_U71eNr)
Hsien-Yen Chang, PhD
ASSOCIATE SCIENTIST, DEPARTMENT OF HEALTH POLICY AND MANAGEMENT
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Sara Cosgrove](/sites/default/files/styles/profile_square/public/2023-05/cosgrove-square.jpg?h=3ea932e1&itok=ynXnrvTj)
Sarah Elizabeth Cosgrove, MD
ASSOCIATE HOSPITAL EPIDEMIOLOGIST, PROFESSOR OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Lorraine Dean](/sites/default/files/styles/profile_square/public/2023-05/dean-square.png?h=3ea932e1&itok=dypnpYxh)
Lorraine T. Dean, PhD
ASSISTANT PROFESSOR OF EPIDEMIOLOGY, HEALTH POLICY AND MANAGEMENT AND MEDICINE
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Mark Dredze](/sites/default/files/styles/profile_square/public/2023-05/dredze-square.jpg?h=3ea932e1&itok=GGSS-aw-)
Mark Dredze, PhD
ASSOCIATE PROFESSOR OF COMPUTER SCIENCE
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
![Kathleen Gabrielson](/sites/default/files/styles/profile_square/public/2023-05/kathleen-gabrielson.jpg?h=a7e6d17b&itok=jKej3qV8)
Kathleen Gabrielson, DVM, PhD
ASSOCIATE PROFESSOR OF MOLECULAR AND COMPARATIVE PATHOBIOLOGY
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Luo Gu](/sites/default/files/styles/profile_square/public/2023-05/luogu-imageresized.jpg?h=3ea932e1&itok=0XgJW8Ac)
Luo Gu, PhD
ASSISTANT PROFESSOR OF MATERIALS SCIENCE AND ENGINEERING
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
![Thomas Hartung](/sites/default/files/styles/profile_square/public/2023-05/hartung-square2.jpg?h=3ea932e1&itok=yKLgCwZe)
Thomas Hartung, MD
PROFESSOR OF ENVIRONMENTAL HEALTH AND ENGINEERING
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![John Jackson](/sites/default/files/styles/profile_square/public/2023-05/jackson-square.jpg?h=3ea932e1&itok=RREHqqHC)
John W. Jackson, ScD
ASSISTANT PROFESSOR OF EPIDEMIOLOGY AND MENTAL HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Susan Hutfless](/sites/default/files/styles/profile_square/public/2023-05/hutfless-square2.jpg?h=3ea932e1&itok=GfaKe8uy)
Susan Hutfless, PhD
ASSISTANT PROFESSOR OF MEDICINE AND EPIDEMIOLOGY
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Luke Kalb](/sites/default/files/styles/profile_square/public/2023-05/kalb-square2.jpg?h=3ea932e1&itok=wpRGTJrb)
![ryan kennedy](/sites/default/files/styles/profile_square/public/2023-05/ryan-david-kennedy.jpg?h=f373b9a5&itok=CA_Le0yq)
Ryan David Kennedy, PhD
ASSISTANT PROFESSOR OF HEALTH, BEHAVIOR AND SOCIETY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Hadi Kharrazi](/sites/default/files/styles/profile_square/public/2023-05/kharrazi-square.jpg?h=3ea932e1&itok=ttlqZMlW)
Hadi Kharrazi, PhD
ASSOCIATE PROFESSOR OF HEALTH POLICY AND MANAGEMENT
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Sabra Klein](/sites/default/files/styles/profile_square/public/2023-05/klein-square.jpg?h=3ea932e1&itok=q-7XW7Gi)
Sabra Klein, PhD
PROFESSOR OF MOLECULAR MICROBIOLOGY AND IMMUNOLOGY AND BIOCHEMISTRY AND MOLECULAR BIOLOGY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Christine Ladd-Acosta](/sites/default/files/styles/profile_square/public/2023-05/ladd-acosta-square.jpg?h=3ea932e1&itok=RvcFkyF5)
Christine Ladd-Acosta, PhD
ASSISTANT PROFESSOR OF EPIDEMIOLOGY AND MENTAL HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Harold Lehmann](/sites/default/files/styles/profile_square/public/2023-05/lehmann-square.jpg?h=3ea932e1&itok=lSeUq_WH)
Harold P. Lehmann, MD, PhD
PROFESSOR OF HEALTH SCIENCES INFORMATICS
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Meghan Moran](/sites/default/files/styles/profile_square/public/2023-05/moran-square2.jpg?h=3ea932e1&itok=SLjnOhxn)
Meghan B. Moran, PhD
ASSISTANT PROFESSOR OF HEALTH, BEHAVIOR AND SOCIETY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Steven Miller](/sites/default/files/styles/profile_square/public/2023-05/miller-square.jpg?h=3ea932e1&itok=yc6q-gGV)
Steven David Miller, MD
ASSISTANT PROFESSOR OF PEDIATRICS
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Sridhar Nimmagadda](/sites/default/files/styles/profile_square/public/2023-05/nimmagadda-square2.jpg?h=3ea932e1&itok=hgs9wAMG)
Sridhar Nimmagadda, PhD
ASSISTANT PROFESSOR OF RADIOLOGY AND RADIOLOGICAL SCIENCE
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Karen Robinson](/sites/default/files/styles/profile_square/public/2023-05/robinson-optim.jpg?h=02763af7&itok=xavkjG0m)
Karen A. Robinson, PhD
ASSOCIATE PROFESSOR OF MEDICINE, EPIDEMIOLOGY, AND HEALTH POLICY AND MANAGEMENT
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![grosner](/sites/default/files/styles/profile_square/public/2023-05/michael-rosenblum.jpg?h=55541bb6&itok=O5eddIf5)
Michael A. Rosenblum, PhD
ASSOCIATE PROFESSOR OF BIOSTATISTICS
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![grosner](/sites/default/files/styles/profile_square/public/2023-05/gary-rosner.jpg?h=5a7b2f21&itok=jLExz1Ex)
Gary Rosner, ScD
PROFESSOR OF MEDICINE AND BIOSTATISTICS
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Suchi Saria](/sites/default/files/styles/profile_square/public/2023-05/saria-square.jpg?h=3ea932e1&itok=225c2V7Y)
Suchi Saria, PhD, MS
ASSISTANT PROFESSOR OF COMPUTER SCIENCE
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
JOHNS HOPKINS WHITING SCHOOL OF ENGINEERING
![Jung-Im Shin](/sites/default/files/styles/profile_square/public/2023-05/jung-im-shin.jpg?h=5a7b2f21&itok=tToL-kFU)
Jung-Im Shin, MD
VISITING ASSISTANT SCIENTIST, DEPARTMENT OF EPIDEMIOLOGY
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Lena Smirnova](/sites/default/files/styles/profile_square/public/2023-05/lena-smirnova.jpg?h=55541bb6&itok=4OMOQJnA)
Lena Smirnova, PhD
RESEARCH ASSOCIATE, DEPARTMENT OF ENVIRONMENTAL HEALTH AND ENGINEERING
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Ryoko Susukida](/sites/default/files/styles/profile_square/public/2023-05/susukida-square.jpg?h=3ea932e1&itok=9gDmqFd1)
Ryoko Susukida, PhD
ASSISTANT SCIENTIST, DEPARTMENT OF MENTAL HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Nitish Thakor](/sites/default/files/styles/profile_square/public/2023-05/thakor-square2.jpg?h=3ea932e1&itok=VLhX4cNk)
Nitish V. Thakor, PhD
PROFESSOR OF BIOMEDICAL ENGINEERING
JOHNS HOPKINS SCHOOL OF ENGINEERING
JOHNS HOPKINS SCHOOL OF ENGINEERING
![Johannes Thrul](/sites/default/files/styles/profile_square/public/2023-05/thrul-square.jpg?h=3ea932e1&itok=bN9KBtk6)
Johannes Thrul, PhD
ASSISTANT PROFESSOR OF MENTAL HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Ravi Varadhan](/sites/default/files/styles/profile_square/public/2023-05/varadhan-square.jpg?h=3ea932e1&itok=7fWXD_TH)
Ravi Varadhan, PhD
ASSOCIATE PROFESSOR OF ONCOLOGY AND BIOSTATISTICS
JOHNS HOPKINS SCHOOL OF MEDICINE
JOHNS HOPKINS SCHOOL OF MEDICINE
![Heather Volk](/sites/default/files/styles/profile_square/public/2023-05/volk-square.jpg?h=3ea932e1&itok=ynteqild)
Heather E. Volk, PhD
ASSOCIATE PROFESSOR OF MENTAL HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
![Jonathan Weiner](/sites/default/files/styles/profile_square/public/2023-05/weiner-square.jpg?h=3ea932e1&itok=hKuHwtVT)
Jonathan Weiner, PhD
PROFESSOR OF HEALTH POLICY AND MANAGEMENT
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH
JOHNS HOPKINS BLOOMBERG SCHOOL OF PUBLIC HEALTH