Graduate School Administration
![Andrew Zinn, M.D., Ph.D](/education/graduate-school/programs/assets/faculty/zinn-andrew.jpg)
Andrew Zinn, M.D., Ph.D.
Dean
Graduate School of Biomedical Sciences
![Deirdre Brekken, Ph.D.](/education/graduate-school/about-us/brekken-deirdre.jpg)
Deirdre Brekken, Ph.D.
Associate Dean for Postdoctoral Affairs
Graduate School of Biomedical Sciences
![Arnaldo Diaz Vazquez, Ph.D. Arnaldo Diaz Vazquez, Ph.D.](/education/graduate-school/about-us/diversity/arnaldo-diaz-vazquez.jpg)
Arnaldo Diaz Vazquez, Ph.D.
Associate Dean
Graduate School of Biomedical Sciences
![Stuart Ravnik, Ph.D.](/edumedia/eduimages/graduate_school/ravnik-stuart.jpg)
Stuart Ravnik, Ph.D.
Associate Dean
Graduate School of Biomedical Sciences
![Lisa Gardner, Ph.D.](/education/graduate-school/about-us/gardner-lisa.jpg)
Lisa Gardner, Ph.D.
Assistant Dean
Graduate School of Biomedical Sciences