Meet the management team

Dr. Maarten Hoek

General Director


Maarten is a senior Public Health manager with expertise in reviving, streamlining, and creating/(re-)building (e-) public health services. Maarten has worked in Kenya, Liberia, and now Tanzania.
Maarten is based in Dar es Salaam, Tanzania.


Dr. Mohamed Janabi

Country Director


Mohamed is a senior cardiologist, personal physician to His Excellency, former President Jakaya Kikwete, and director of the cardiology centre at Muhimbili hospital complex. Mohamed is our guru when it comes to advancing medical care.  Mohamed is based in Dar es Salaam, Tanzania.


Faith Temba

PA to Prof. Mohamed Janabi

Focal point for Madaktari Africa visiting teams


Faith joined the JKCI team two years ago and has since made a big impact. Faith is organised, structured and knows hot to get things done. Our volunteers are in safe hands with Faith!

Dr. Peter O'Brien

Medical Director


Peter is a senior cardiologist based in Lynchburg VA. His enthusiasm and energy are contagious. Peter was one of the pioneers in creating the first government run Cath Lab in Tanzania. He has now set his goal to contribute to establishing the first centre of excellence for cardiology in Tanzania. Peter is based in Lynchburg, Virginia, USA.


Dr. Matthew Sackett

EP lead for our cardiology program in Tanzania


Matt is a cardiologist in Lynchburg, Virginia and is affiliated with Centra Lynchburg General Hospital. He received his medical degree from University of Virginia School of Medicine and has been in practice for more than 20 years. He has completed several trips to Tanzania and successfully implanted many devices and trained the team at JKCI to perform these complex interventions. He collaborated closely with Medtronic US to get the devices donated. 

Dr. Joyce Nicholas

Monitoring & Evaluation Director


Joyce is an internationally respected epidemiologist with a long list of publications. She turns complex health facility data into easily understandable graphs and figures to help us monitor and evaluate our activities. This allows us to fine-tune our training. She is based in Lynchburg, Virginia, USA.




Davidson, Doyle and Hilton, LLP is a full-service accounting firm with over 3,000 clients throughout North America, including Madaktari Africa. The company was founded in 1999 and is located in Lynchburg, Virginia. 



For more information:

Madaktari Africa

PO Box 3440

Lynchburg, VA 24503

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Madaktari Africa is a 501 (c)3 organisation