ADPH Alabama Department of Public Health The company is the primary state health agency for the state of Alabama. The purpose of the company is to provide caring, high quality, and professional services for the improvement and protection of the public’s health through disease prevention and the assurance of public services to resident and transient populations of the state regardless of social circumstances or the ability to pay. We work closely with the community to preserve and protect the public’s health and to provide caring, quality services.