Our Faculty
Our world class faculty conducts fieldwork and research to eradicate diseases, improve our environments, make us safer, and set the record straight for countless health threats that would have otherwise gone unrecognized.
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![Rafal Tokarz, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=VS10Vxv6 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=K-PMkRjN 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=_K4st_L8 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=mb1zPWfE 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=QJoGRYnm 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=OxMY8z8A 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/05a96710-7651-11ed-b474-d9f0bbd2febe.jpg?itok=Aifpc1qt 800w)
Departments/Divisions
Department of Epidemiology
Research Interests
Epidemiology, Lyme and Tick-Borne Diseases
Academic Appointments
- Assistant Professor of Epidemiology in the Center for Infection and Immunity at CUMC
![Sarah E. Tom, PhD, MPH Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=_kO9Obfd 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=HOlI9PKM 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=8Xr2vcnj 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=2FrbNA5r 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=oN--Rfy_ 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=ip0hrLrF 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/ca511cd0-e4ad-11ea-9739-29851ef36139.jpg?itok=NY9_9HXq 800w)
Departments/Divisions
Department of Epidemiology, Department of Neurology, Division of Cognitive Neuroscience, Division of Neurology Clinical Outcomes Research and Population Science (NeuroCORPS)
Research Interests
Aging, Community Health, Healthcare Policy
Academic Appointments
- Assistant Professor of Epidemiology (in Neurology and in the Sergievsky Center)
![Myrna Weissman, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=BpQw2ETW 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=zjsfdUNn 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=GnGK_6QU 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=G647C7xY 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=ZkXObhjf 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=CgCEdLZ1 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/8fd570d0-d0fc-11ee-aceb-2dd319e76c8c.jpg?itok=wHuOJ4Rg 800w)
Departments/Divisions
Department of Epidemiology, Department of Psychiatry, Division of Epidemiology
Research Interests
Aging, Biostatistical Methods, Child and Adolescent Health, Chronic disease, Community Health, Genetics, Genetics of major depression and panic disorder, families at risk for depression, other disorders, Interpersonal Psychotherapy, Mental Health
Academic Appointments
- Diane Goldman Kemper Family Professor of Epidemiology (in Psychiatry)
![Carolyn L. Westhoff, MD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=3mLXoQ4J 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=7WsWueN8 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=z3jqSb4s 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=cs15zTKg 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=9Vv4Em3M 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=XVB23zGF 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/a7c00720-e1ed-11ea-9bec-bb4017b1f11a.jpg?itok=ds7Ek7Ks 800w)
Departments/Divisions
Department of Epidemiology, Department of Obstetrics & Gynecology, Division of Family Planning and Preventive Services, Department of Population and Family Health
Specialties
Obstetrics and Gynecology
Research Interests
Child and Adolescent Health, Chronic disease, Community Health, Maternal and Reproductive Health
Academic Appointments
- Sarah Billinghurst Solomon Professor of Reproductive Health in the Department of Obstetrics and Gynecology and Professor of Population and Family Health and Epidemiology at the Columbia University Med
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![Brent L. Williams, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=JDLXRksL 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=a1RIHAa7 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=q2zUs1wK 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=2uFO9IKX 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=wWmg6eSf 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=Jmt1yU5B 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/1317a0a0-7b02-11ed-bf65-b1a6006850f8.jpg?itok=R2mYqViN 800w)
Departments/Divisions
Department of Epidemiology, Department of Pathology & Cell Biology
Research Interests
Defining host-microbiome interactions that underlie host pathology, Determining the impact of environment on microbiome disturbances and neurodevelopment, Gaining insights into the evolution of the human microbiome from extant primates, Investigating the role of the intestinal and vaginal microbiome in human health, Understanding role of the vaginal microbiome in susceptibility to HIV and adverse pregnancy outcomes
Academic Appointments
- Assistant Professor of Epidemiology Pathology and Cell Biology (in the Center for Infection and Immunity) at CUMC
![Wan Yang, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=kcIfkCPE 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=ClSGeWai 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=66yM1P-E 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=S3JcP0NB 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=_pIvuT3T 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=Tw7WGZCo 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/23b167f0-7c8f-11ed-b290-d1a472bbdd8a.jpg?itok=VIdgm8VC 800w)
Departments/Divisions
Department of Epidemiology
Research Interests
Biostatistical Methods, Infectious Diseases
Academic Appointments
- Assistant Professor of Epidemiology
![Lawrence Yang, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=O-FlZa8N 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=ReGvmhbt 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=snlKJ8tV 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=dLGdK2kN 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=pj6Yq9hk 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=KOX9Ie9Q 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/bcb9b7a0-bb7c-11ed-8a63-173bdddc6662.jpg?itok=CfmS55FT 800w)
Departments/Divisions
Department of Epidemiology
Research Interests
Community Health, Mental Health
Academic Appointments
- Associate Professor of Clinical Epidemiology
![](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/default_images/default-headshot-cumc-crown.png?itok=kNzPiu6- 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/default_images/default-headshot-cumc-crown.png?itok=LoHBhOpT 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/default_images/default-headshot-cumc-crown.png?itok=CxKBn_PF 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/default_images/default-headshot-cumc-crown.png?itok=K4WWhXZa 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/default_images/default-headshot-cumc-crown.png?itok=nkhBsI0D 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/default_images/default-headshot-cumc-crown.png?itok=F3uNDQa4 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/default_images/default-headshot-cumc-crown.png?itok=GFwRChqM 800w)
Departments/Divisions
Department of Epidemiology
Academic Appointments
- Adjunct Professor of Epidemiology
![Adina Zeki Al Hazzouri, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=tDa5LwqX 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=H98v8os_ 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=eAqNc8ha 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=3HwyQZXF 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=VZPhaLPv 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=zRzz8W6Z 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/69ee89b0-717b-11ed-96cd-bfd400418fb5.jpg?itok=wRl3I6sa 800w)
Departments/Divisions
Department of Epidemiology
Research Interests
Aging, Biostatistical Methods, Community Health, Mental Health
Academic Appointments
- Assistant Professor of Epidemiology (In CAC)