People
Leadership
Oksana Yakushko
Professor of Clinical Psychology
Program Director
Joshua DeSilva
Assistant Professor of Clinical Psychology
Director of Clinical Training
Deputy Director
Faculty and Staff
![person icon](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/profile-graphic_1080x1080.jpg?h=57024e64&itok=RPsn1PfX)
![1080](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/profile-graphic_1080x1080-2_0.jpg?h=57024e64&itok=oaMyDP22)
![Joshua DeSilva](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2024-07/joshua_desilva_square.jpg?h=f2d33511&itok=6si_X4Uj)
Professional Psychology Program
Assistant Professor of Clinical Psychology, Director of Clinical Training, and Deputy Director
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/downloads/helen%20headshot%201080.jpg?h=e25d2685&itok=-QR4b5dt)
![Paul Gedo](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/190917_HJ_CCAS_Psychology_064_1080x1080.jpg?h=1c5f5486&itok=I19AgL9l)
Professional Psychology Program
Emeritus Associate Professor of Clinical Psychology
![](/sites/g/files/zaxdzs4391/themes/site/gw-main-theme/images/defaults/default-person-image.png)
Professional Psychology Program
![Sarah Hedlund](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-03/sarah_hedlund-up_2018_wla_2348_1080x1080.jpg?h=57024e64&itok=APZ_sMfy)
![](/sites/g/files/zaxdzs4391/themes/site/gw-main-theme/images/defaults/default-person-image.png)
Professional Psychology Program
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/Psychology_Loring_2019_WLA_2N0A2800_1080x1080.jpg?h=57024e64&itok=Mf2btnhE)
Professional Psychology Program
Emeritus Professor of Clinical Psychology & Past Program Director
![1080](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/profile-graphic_1080x1080-2.jpg?h=57024e64&itok=4p8xMbVY)
![headshot image Joe K](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/1080img_8540-3.jpg?h=57024e64&itok=VCoM8HFL)
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/Cheri_Marmarosh_1080x1080.jpg?h=57024e64&itok=e5hcRGb0)
![headshot image Ximena](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/1080rsz_ximena_professional_photo_-_gwu.jpg?h=5513109f&itok=_ZtcyN9l)
![dr.scott-.jpeg](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2023-08/dr.scott-_0.jpeg?h=3b7b0616&itok=kfK_kKyM)
Professional Psychology Program
Staff Psychologist - Center Clinic, Adjunct Professor of Clinical Psychology
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/James_Sexton_1080x1080.jpg?h=57024e64&itok=b9gYuIse)
![Dr. Smith Visiting Assistant Professor of Clinical Psychology](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2023-08/pxl_20230610_0158394412_2.jpg?h=60898e40&itok=_oxh9zbx)
![Pavel Snejevski](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/Pavel_Snejevski_720x1080.jpg?h=f300bf57&itok=kwsBfdLm)
Professional Psychology Program
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/image/Karen_Weise_1080x1080.jpg?h=57024e64&itok=9ihy0qtj)
![](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/downloads/kmw%20cropped.jpg?h=57024e64&itok=nFbfEDUX)
![Oksana Yakushko](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2024-07/oksana_yakushko_headshot_1080x1080.jpg?h=57024e64&itok=cApR52mO)
Associated Faculty
Postdoctoral Fellows
![1080](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/profile-graphic_1080x1080-2.jpg?h=57024e64&itok=4p8xMbVY)
![headshot image Joe K](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/1080img_8540-3.jpg?h=57024e64&itok=VCoM8HFL)
![headshot image Ximena](https://psyd.columbian.gwu.edu/sites/g/files/zaxdzs4391/files/styles/d03_traditional/public/2022-08/1080rsz_ximena_professional_photo_-_gwu.jpg?h=5513109f&itok=_ZtcyN9l)