Obtains detailed history and develops patient care charts; performs physical examinations and evaluations on assigned patients; assesses and treats medical problems and provides direct patient care to a specified patient population  Assists in providing pre-op and post-op care; writes appropriate orders, including those for narcotics, stimulants, and depressant drugs  Notifies attending physician on call, house physician on call, or supervising physician regarding any unusual or unexpected events or problems requiring direct physician consultation  Supervises and/or coordinates the activities of patient care and support staff within the clinic  Writes progress notes on patients' charts indicating patient status and treatment procedures performed; maintains other records as required