A method for delivering medical examination, diagnosis, and treatment services to a patient over a network includes providing a call center enabling any of a plurality of health care practitioner terminals to be in audiovisual communication over the network with any of a plurality of patient terminals. A call initiated by a person at one of the patient terminals is received at the call center and the call is routed to an available physician or other health care practitioner at one of the health care practitioner terminals so that the available physician may carry on a two-way conversation with the person and visually observe the patient, wherein the person is the patient, a family member of the patient, and/or another health care practitioner. The available physician or health care practitioner is permitted to make an assessment of the patient and to conduct an examination of the patient over the network, including by a visual study of the patient.