Abstract: A clinician's assistant system including examination and treatment modules to guide a clinician in examining and treating a patient. The system is configured to communicate with databases storing patient data and treatment data. The modules display information to and solicit information from a clinician via a display device, e.g. using menus and graphical user interfaces, to ensure that the patient is properly evaluated and treated. Optionally, the system is capable of recommending a treatment, e.g. as a function of patient information known to the system. The system can help create documents by presenting the clinician with selectable phrases, and/or by incorporating data into predefined document templates. The system provides multi-patient research, voice recognition, and billing capabilities. The system may be implemented, at least in part, in a pen-based portable computer so that patient medical record and/or treatment data is available, and examination data is recorded, at the point of care.