The Japanese health care system is sometimes considered one of the best in the world because it appears to have achieved universal coverage, high quality, and a comparatively low level of expenditure. But under compulsory national health insurance and the uniform fee schedule which has worked well so far, various problems have been produced in Japan. A growing number of persons believe some reform or readjustment may be required. Following a brief review of the Japanese health care system which includes health insurance mechanisms, the relationship among physicians, hospitals and clinics, and the impact of these structures on access to care are explored. The resulting cost of care and the quality of care are then addressed. The lack of consumer information and the nature of the physician-patient relationship related to cultural factors are important components of this health care system. These latter factors are in the process of change and the likely direction of their influence upon the Japanese health care system is explored.