As a part-time physician, you care for patients on a limited schedule. Responsibilities include assessment, diagnosis, and treatment of patients in a range of medical and health care settings. In private practice, a part-time physician may have a staff to handle the scheduling of patient appointments and other office tasks. In a hospital or other health care setting, such as a clinic or inpatient facility, your duties include providing medical care to patients for a set number of hours. Depending on their skills and where they work, part-time physicians may either be on call or set their hours.