Naoki Ikegami

Naoki Ikegami is a Professor and Chairholder of the Health Policy and Management Chair at Keio University's School of Medicine in Tokyo. He serves as President of the Japanese Association of Health Economics and has worked as a consultant for the World Health Organization (WHO) and the World Bank. His research focuses on health policy, comparative healthcare systems, and long-term care economics.

His work analyzes cost containment mechanisms in Japan's social health insurance system, particularly through biennial tariff revisions that prioritize macroeconomic control and efficiency. He has published extensively on healthcare financing, including cross-national comparisons with France, emphasizing structural differences in taxation and provider organization.

Key research themes include

• Medical tariff systems
• Healthcare equity vs. expenditure
• Long-term care quality metrics
• Impact of aging populations on healthcare policy
• Comparative analysis of SHI models
• Provider reimbursement regulations