Design and development of computer hardware and software for use in electronically managing patient health records, for on-line appointment scheduling, for conducting communications between patients and medical personnel, for accessing medical information and records, for managing automated reminders, for accessing billing reports, for transacting healthcare on-line for doctors and patients, and for use in management of healthcare practices and electronic medical records via the Internet; Cloud computing featuring software for use in electronically managing patient health records, for on-line appointment scheduling, for conducting communications between patients and medical personnel, for accessing medical information and records, for managing automated reminders, for accessing billing reports, for transacting healthcare on-line for doctors and patients, and for use in management of healthcare practices and electronic medical records via the Internet; Providing on-line non-downloadable software for use in electronically managing patient health records, for on-line appointment scheduling, for conducting communications between patients and medical personnel, for accessing medical information and records, for managing automated reminders, for accessing billing reports, for transacting healthcare on-line for doctors and patients, and for use in management of healthcare practices and electronic medical records via the Internet; Providing temporary use of a web-based software application for use in electronically managing patient health records, for on-line appointment scheduling, for conducting communications between patients and medical personnel, for accessing medical information and records, for managing automated reminders, for accessing billing reports, for transacting healthcare on-line for doctors and patients, and for use in management of healthcare practices and electronic medical records via the Internet