Abstract
This study explores the adoption of electronic information systems by 120 medical group practices within a managed care environment and analyzes the characteristics of medical groups that influence this process. While almost all the clinics have financial related systems, the group practices are not invested extensively in patient care information technologies. The factors influencing the adoption of these technologies remain obscure. The value of patient care and pharmacy systems seems to remain unproven in a health care industry that focuses on implementing systems that provide a more immediate impact on information required to survive in highly competitive markets.