While the significance of continuity of care in medical practice has not yet been completely assessed, this concept has been espoused by the new specialty of family practice along with some other specialties. It is an integral component in family practice residency programs. The purpose of this paper is to identify several methods of measuring continuity of care in a residency setting and to demonstrate their application. Measurements called COC (Continuity of Care) and UPC (Usual Provider Continuity) will be described as they apply to overall patient visits, visits for chronic conditions, and visits by family members.