David has been working with the Ghana Statistical Service since January 1990. He is a Chief Statistician and currently acting as Deputy Government Statistician responsible for Services. He holds a Master of Arts degree in Population Studies from the Regional Institute for Population Studies, University of Ghana, Legon. He had earlier obtained a Bachelor of Arts degree in Economics and Statistics from the same university. As part of his professional training, David obtained a post-graduate certificate in applied statistics from the Munich Centre for Advanced Training in Applied Statistics and a certificate in Report Writing and Presentation Skills from West African Institute for Financial and Economic Management (WAIFEM), Lagos, Nigeria. Mr. Kombat also has a certificate in Management and Leadership from the Ghana Institute of Management and Public Administration (GIMPA).
David served as Regional Statistician for the Upper East, Central and Ashanti regions. He has coordinated many national surveys and censuses conducted by the Ghana Statistical Service. He served as a member of the 2010 Population and Housing is National Census Coordinating Team and later acted as Census Coordinator. David is a member of the 2020 Population and Housing Census Coordinating Team.
He has written and reviewed several reports of the Ghana Statistical Service. These include Population and Housing Census Analytical reports, Ghana Living Standard Survey reports and Integrated Business Establishment Survey report. He coordinated the writing of thirteen thematic reports using the 2010 Population and Housing Census data in addition to Regional and District Analytical reports.
David represented the Ghana Statistical Service on several committees. He was a member of the National Committee on District Boundaries Disputes Resolution Committee and currently a member of the National Population Council.
David contributed to the preparation of the African Addendum to the UN Principles and Recommendations for the 2010 round of Population and Housing Censuses and also contributed to the preparation of the UN Principles and Recommendations for the 2020 round of Population and Housing Censuses He served as an international observer/monitor for 2015 Sierra Leone Population and Housing Census