Our Faculty
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![Peter Esser, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=WYHEGWAo 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=__8xZpnq 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=VHPGNolr 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=uhy6dq5_ 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=IIBpLDqi 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=7V424D0Z 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/a8a2d110-764f-11ed-915c-2fa7a75148dc.jpg?itok=c8Gd2LfY 800w)
Academic Appointments
- Professor Emeritus of Clinical Radiology (Physics) (in Environmental Health Sciences) and Special Lecturer in the Department of Radiology and in the Department of Applied Physics & Applied Mathematics
![Pam R. Factor-Litvak, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=FZ7_z73A 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=xjkM_kyW 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=3oZuFTfd 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=mOTxmStz 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=RTQ1GWVi 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=TwKE7hYO 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/3ecf2450-bd1c-11ed-a457-87b1a0b0c371.jpg?itok=PxYcMK-S 800w)
Departments/Divisions
Department of Epidemiology
Academic Appointments
- Professor of Epidemiology at the Columbia University Medical Center
![Jeffrey Fagan, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=W09ttHXK 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=WLAeYZP5 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=85L6rFy9 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=Mia4Xy7T 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=v-v9CfVN 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=OVlMoDCs 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/502d78e0-9ce3-11ed-aa3d-37ade468806c.jpg?itok=U30iLbOk 800w)
Departments/Divisions
Department of Epidemiology
Research Interests
Biostatistical Methods, Child and Adolescent Health, Community Health, Global Health, Infectious Diseases, Mental Health, Substance Use
Academic Appointments
- Isidor and Seville Sulzbacher Professor of Law and Professor of 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 ICAP
Academic Appointments
- Associate Research Scientist in the International Center for AIDS Care and Treatment Programs
![](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 Population and Family Health
Academic Appointments
- Assistant Professor of Population and Family Health (in ICAP) at the CUMC
![Meghan Fitzgerald Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=iDQEDXdC 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=-EzSlxGR 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=Po5iJVMA 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=aH-AUyRQ 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=UW2GMVhw 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=IaBkLZZE 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/ac7f8680-71a3-11ed-96cd-bfd400418fb5.jpg?itok=tbP0qUZQ 800w)
Departments/Divisions
Department of Health Policy and Management
Academic Appointments
- Adjunct Professor of Health Policy and Management
![Jessie Ford, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=fkTpcIyU 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=eZTYQGho 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=5JUCRiF3 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=vMOkChG2 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=C34X1n2D 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=QtKi6Kpp 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/2206f8f0-c430-11ed-887c-950221b2d237.jpg?itok=BTsLiY0r 800w)
Departments/Divisions
Department of Sociomedical Sciences
Academic Appointments
- Assistant Professor of Sociomedical Sciences
![Catherine Foster, MPH Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=Oi0N2ACJ 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=hr_kfodZ 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=Bx62gVLS 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=HnI_uo0Q 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=2KcBVpP7 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=WU3cyyeh 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/cf2450_Foster_Catherine_profile_1.jpg?itok=zpNqgjEC 800w)
Departments/Divisions
Department of Health Policy and Management
Academic Appointments
- Associate in Health Policy and Management
![Julie Franks, PhD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=6HbV88pq 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=GOM6hS2S 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=FnZR95lZ 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=M1Az3PLH 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=6ML1P4WN 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=ZoPvzUtG 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/65ba2550-77fe-11ed-857e-53bad8135885.jpg?itok=zPtH5YFI 800w)
Departments/Divisions
Department of Sociomedical Sciences
Academic Appointments
- Assistant Professor Of Sociomedical Sciences (in ICAP) at CUMC
![Daniel E Freedberg, MD Profile Headshot](https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_200/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=vNlrHtTa 200w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_260/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=fxvZL0PR 260w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_320/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=knb8fdRi 320w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_400/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=w8DlKsoj 400w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_520/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=qmXjdylS 520w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_640/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=-KeEWJkx 640w, https://www.publichealth.columbia.edu/sites/default/files/styles/cola_media_800/public/cups-profile/headshot/def2004_Freedberg_Daniel_Mar2019.jpg?itok=P80m3yqR 800w)
Departments/Divisions
Department of Epidemiology, Department of Medicine, Division of Digestive & Liver Diseases
Accepting New Patients
Virtual Visits/Telehealth
Specialties
Gastroenterology
Research Interests
Biostatistical Methods, Environmental Health, Food Policy and Obesity, Infectious Diseases
Academic Appointments
- Assistant Professor Medicine and Epidemiology
Primary Location
CUIMC/Presbyterian Hospital and Vanderbilt Clinic
622 West 168th Street
New York, NY 10032
Schedule an Appointment
New and Existing Patients: