Business Staff

Todd Leovic headshot

Todd Leovic

Chief Administrative Officer

(919) 684-5726

Todd is the Chief Administrative Officer for the Department of Immunology. A graduate of the University of Denver, Todd has been at Duke for over 35 years. Todd has developed a strong sense of devotion for Duke and is well connected within the Duke community.

Darren Carlino

Darren Carlino

Administrative Assistant

(919) 684-9659

Darren provides administrative support for the Chairman, Dr. Raphael Valdivia, and the Department of Immunology.  He has worked at Duke since 2011.

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Houda Williamson

Senior Program Coordinator for Graduate Studies

(919) 684-3578

Responsibilities for the director of graduate studies assistant for Immunology or DGSA include coordinating the admissions process, managing policy and financial issues, and serving as a liaison between the graduate school and current students. 

Bobbi Tucker

Bobbi N. Tucker, CRA

Grants & Contract Manager

(919) 684-2895

Bobbi is a Grants and Contracts Manager who has worked at Duke since September 2000.  She provides research administration support for the faculty and students, including, but not limited to pre and post award management. Bobbi’s primary faculty members are Drs. You-Wen He, Garnett H. Kelsoe, Ed Miao, Michael S. Krangel, Masayuki Kuraoka, Mari Shinohara, and Thomas T. Tedder.

Bekka Noto headshot

Bekka Noto

Grants & Contracts Administrator

(919) 613-7816

Rebecca is a native Louisianan who currently lives in Richmond, Virginia. She provides research administration support for faculty and students, including both pre and post-award grants management. Primary faculty members are Drs. Maria Ciofani, Saskia Hemmers, and Ashley Moseman.

Brooke Fabean

Brooke Fabean

Staff Assistant


Brooke is the departmental point of contact for travel. She administers four department conference room schedules and the Departmental Seminar Series.