Contact Us

TEPHINET Secretariat - Atlanta, Georgia, United States

A Program of The Task Force for Global Health, Inc. 
325 Swanton Way
Decatur, GA 30030
Telephone: +1-404-687-5609
Fax: +1-404-371-1138
For general inquiries, please email

Staff contact information:


Dionisio Herrera Guibert, MD, PhD
Miriam Alderman, MBA
Deputy Director
Shanti Bazouma, MPH
Project Coordinator
Lorie Burnett, MPA
Project Manager
Khurram Butt, MBA
Project Manager
Mahamadou Dao, MPA, LLM
Program Assistant
Claire Jennings, MA
Project Manager
Mariana Mansur, PhD
Project Manager
Clare Sigelko
Project Coordinator
Wendy Worthington, MPH
Project Manager
Thomas Jackson, MBA
Financial Analyst
Tina Rezvani, MA, MS
Communications Specialist
Amber C. Ellithorpe
Senior Administrative Assistant

TEPHINET Central America Office - Guatemala City, Guatemala

19 Avenida 11-88, Condominio Vallarta casa B
Vista Hermosa 3 Zona 15,
Guatemala City, Guatemala
Telephone: 502-2463-8700


María Elena Guardado Escobar, MD, MPH
Central America Technical Director
Senior Epidemiologist

Contact Maria Elena Guardado Escobar

Claudia García Cerón, MBA
Program Manager for Central America
Contact Claudia García Cerón

Raysa Gramajo
Program Administrative Assistant for Central America
Contact Raysa Gramajo