The invention is directed to a mobile medical facility capable of treating, diagnosing and performing minor surgery on multiple patients at one time. In general, the facility includes a health care area which is interchangeable between a first transportable configuration and a second, operational configuration. In the operational configuration, the health care area is expanded and capable of providing general care or diagnostic facilities to multiple patients as well as registration, counseling and triage to at least one patient. Preferable a row of patient treatment bays are provided with intake, counseling and triage cubicles and storage areas.