Mark A. Sheridan, Ph.D.

Vice Provost for Graduate and Postdoctoral Affairs and Dean of the Graduate School

Jacek Jońca-Jasiński, Ph.D.

Director, Graduate Student & Postdoctoral Life

+ 1 (806) 834-3348 | jacek.jonca@ttu.edu

Kim Cappillino

Senior Director of Admissions, Marketing, & Recruitment

+ 1 (806) 834-3374 | kim.cappillino@ttu.edu

Donna Rogers

Manager, Fellowships/Scholarships & Alumni/Donor Relations

+1 (806) 834-4079 | donna.rogers@ttu.edu

Melissa Carrillo

Executive Associate to the Vice Provost/Dean

+1 (806) 834-2009 | melissa.carrillo@ttu.edu

Darina Brackeen

Business Manager

+1 (806) 834-3602 | darina.brackeen@ttu.edu

David Doerfert, Ph.D.

Associate Dean

Dr. Doerfert began his position at Texas Tech University in 2002 as Associate Professor of agricultural communications. In this appointment, Dr. Doerfert teaches courses and advises students majoring in agricultural communications as well as conducts research related to agricultural communication strategies and methods, especially in the area of decision making.

+1 (806) 834-4477 | david.doerfert@ttu.edu

Claudia Cogliser, Ph.D.

Associate Dean

Dr. Claudia Cogliser serves as associate dean for student affairs. She also is responsible for coordinating Professional and Career development programs for graduate students and postdoctoral scholars.

+1 (806) 834-2147 | claudia.cogliser@ttu.edu

Tim Dallas, Ph.D.

Associate Dean

Dr. Tim Dallas joined the Graduate School as Associate Dean in 2016 and is responsible for graduate student and postdoctoral scholar funding.

+1 (806) 834-6856 | tim.dallas@ttu.edu