Meet the Faculty Diversity & Development Team

Byron Cryer, M.D.

Byron Cryer, M.D. photo

Byron Cryer, M.D., Associate Dean for the Office of Faculty Diversity & Development (FDD), graduated from Harvard College, and received his M.D. degree from Baylor College of Medicine.

He joined UT Southwestern Medical Center as an Assistant Professor of Internal Medicine in 1992. Dr. Cryer is currently Professor of Internal Medicine and holds the John C. Vanatta III Professorship. He is also a Councillor-At-Large for the American Gastroenterological Association Governing Board and past chair of the Association’s Underrepresented Minorities Committee.

Dr. Cryer served as the Associate Dean for Minority Student Affairs for UT Southwestern Medical School from 1997 to 2011, gaining national recognition for increasing our African-American and Hispanic medical student populations. In 2011 Dr. Cryer was appointed as the Associate Dean to launch the Office of Faculty Diversity & Development. FDD expanded to include the Office of Women’s Careers in 2012.

Christina E. Ahn, Ph.D.

Christina Ahn, Ph.D. photo

Christina E. Ahn, Ph.D., Director for the Office of Faculty Diversity & Development (FDD) and the Office of Women’s Careers, earned her B.A. from Austin College and a Ph.D. from Eastern Virginia Medical School and Old Dominion University.

After her postdoctoral research training at Duke University Medical Center, Dr. Ahn transitioned into science administration and managed biomedical graduate education programs at the University of North Carolina at Chapel Hill from 2007 to 2008. In 2008, Dr. Ahn moved back to Duke where she had multiple roles, including research administration, management of a large cardiology research group, and directing the Chancellor’s Clinical Leadership in Academic Medicine Program (CCHAMP) for faculty. In 2013 Dr. Ahn joined UT Southwestern as the Director of the FDD and Office of Women’s Careers.

Marissa Hansen, M.A.

Marissa Pullum

Marissa Hansen is the Management Analyst for the office of Faculty Diversity & Development/Office of Women’s Careers. She organizes and manages faculty data analysis projects and coordinates the logistics for housestaff leadership development programs. Prior to her arrival in 2014, she was a student worker for the University of Texas at Dallas (UTD) Bursar’s Office. Marissa earned her B.A. in Psychology and Gender Studies from UTD in 2011, and a M.A. in Interdisciplinary Studies in 2013. Marissa’s research projects at UTD focused on the study of conflict, reconciliation, and attachment styles in couple relationships.

Britany Singleton, MBA

Britany Singleton

Britany Singleton is the Program Coordinator for the Office of Faculty Diversity & Development/Office of Women’s Careers. She is the assistant to Dr. Byron Cryer, and coordinates the LEAD and Promotion and Tenure programs. Previously, she worked for the Department of Surgery as a Breast Oncology Program Coordinator and Senior Administrative Assistant, as well as the U.S. Army National Guard, where she dedicated 10 years of service to our nation. She earned her Bachelor of Business Studies in Business Administration from Dallas Baptist University in 2016.

Daniel Marrufo

Daniel Marrufo photo

Daniel Marrufo is the Systems Administrator for the Office of Faculty Diversity & Development. Daniel is responsible for creating and maintaining data systems for all our reporting and publishing efforts.

He first worked in the Office as a 2013 summer intern through the Dr. Emmett J. Conrad Leadership Program. Daniel now works part-time here while he completes his master’s in biomedical engineering at the University of Texas at Arlington.