CHAK is a leading non-profit Faith Based Organization (FBO) of Protestant churches' health facilities and programs from all over Kenya. The core functions of CHAK are:

• Health Services delivery through its Member Health Units

• Advocacy and representation with the Ministry of Health
•  Capacity building and training
• Promoting Essential Drugs and Medical Supplies access through MEDS
• Medical equipment procurement, installation, repair and maintenance through the Health Care Technical Services Program (HCTS) 
• Networking and Communication
• HIV/AIDS Prevention, treatment, care and support
• Health care financing
• Governance and management support to member health units.
• Monitoring and Evaluation.

CHAK is organised into five departments which discharge the above core functions through various projects and programmes.  

The Annual General Meeting is CHAK's highest body of authority. It elects the Executive Committee (EXCO) which is responsible for formulating policies, approving operational plans and budgets and ensuring regular financial and programmatic monitoring.

CHAK's national network of member health facilities is divided into four geographical regions, each of which is led by a Regional Co-ordinating Committee. CHAK's activities are co-ordinated centrally from the Secretariat in Nairobi.