A system and process for providing a computerized medical and biographical records database and diagnostic information. A medical records database and diagnostic program is stored on a central computer that is accessible to individuals using remotely situated computers connected to a computer network. Individual patient medical and biographical records are owned by individual patients who can enter information in their record as well as grant or deny authorization to others, such as health care professionals, insurance providers and other entities, to review part or all of their record. The diagnostic program provides a series of diagnostic questions to an individual who must respond either "yes" or "no" to each question. Each potential response is weighted relative to its importance to a particular disease diagnosis. Relative weights for all responses to diagnostic questions are summed to identify potential diagnoses to connected to the answered questions. The diagnostic program provides the individual with a list of potential diagnoses as well as permitting the individual to save the information to his or her individual medical and biographical record. The information maintained in the above system and process is utilized for health care financing and insurance.