- 2024/05 - 現在 The Ministry of Health, Labour and Welfare Interim Member of the Health Science Council for subcommittee on Providing Anonymous Infectious Disease-Related Information to Third Parties
- 2024/01 - 現在 Ministry of Health, Labour and Welfare Committee member for committee on measures to prevent uneven distribution of physicians through the physician training process
- 2023/11 - 現在 Ministry of Health, Labour and Welfare Expert committee on the provision of anonymous information related to designated intractable diseases and anonymous information related to chronic childhood diseases・Committee Member
- 2023/03 - 現在 National Institute of Advanced Industrial Science and Technology, The Evaluation Method Study Committee for the Effective Use of Care Technology Public Interest Committee
- 2022/11 - 現在 Ministry of Health, Labour, and Welfare, Health Insurance Bureau, Central Social Insurance Medical Council, Cost-Effectiveness Evaluation Expert Group Specialized organization for cost-effectiveness evaluation・Committee Member
- 2022/10 - 現在 Ministry of Health, Labour and Welfare Social Security Committee (Expert Committee on the Provision of Anonymous Medical Care Information) Committee Member
- 2022/10 - 現在 Commission for the Investigation and Verification of Promoting Rehabilitation for the Elderly in Local Communities, commissioned by the Ministry of Health, Labour and Welfare Chairperson
- 2022/08 - 現在 Research Project on Improving Effective Response Rates for Surveys on the Actual Status of Management of Long-term Care Services under the Elderly Health Promotion Project for FY 2022, , commissioned by the Ministry of Health, Labour and Welfare Committee Member
- 2022/01 - 現在 Ministry of Health, Labour and Welfare, Committee for the Examination of the Lending and Sales Categories of Welfare Equipment under the Long-term Care Insurance System Chairperson
- 2021/11 - 現在 National Institute of Population and Social Security Research Council Member
- 2021/11 - 現在 Ministry of Health, Labour and Welfare, Population Subcommittee of the Social Security Council Committee Member
- 2021/03 - 現在 Ministry of Health, Labour and Welfare, Statistics Subcommittee of the Social Security Council Subcommittee Chairperson
- 2020/10 - 現在 Ministry of Health, Labour and Welfare, Committee for Management and Business Survey of Long-term Care Services under the Social Security Council. Committee Member
- 2020/10 - 現在 Ministry of Health, Labour and Welfare, Long-term Care Benefits Subcommittee of the Social Security Council Committee Member
- 2020/10 - 現在 Japan Academy (Nihon Gakujutsu Kaigi) Member
- 2020/04 - 現在 Adachi Ward in Tokyo Prefecture, Committee for the Examination of Information Disclosure and Protection of Personal Information Committee Member
- 2020/04 - 現在 Hitotsubashi University, Joint Use and Joint Research Committee of the Institute of Economic Research Committee Member
- 2019/02 - 現在 Ministry of Health, Labour and Welfare Social Security Council (Expert Committee on the Provision of Anonymous Long-Term Care Information) Committee Member
- 2019/02 - 現在 Ministry of Health, Labour and Welfare, Long-term Care Insurance Subcommittee of the Social Security Council. Deputy Chairman
- 2019/02 - 現在 Ministry of Health, Labour and Welfare, Expert Committee on Reducing the Burden of Documents in the Long-Term Care Field Chairperson
- 2019/01 - 現在 Ministry of Health, Labour and Welfare, Statistics Subcommittee of the Social Security Council Committee Member
- 2019/01 - 現在 Ministry of Health, Labour and Welfare, Pharmaceuticals and Food Safety Council, Blood Products Division. Adjunct Committee Member
- 2016/11 - 現在 Ministry of Health, Labour and Welfare, Subcommittee on Consumption Tax Burden at Medical Institutions, within the Specialist Organization for the Examination of Medical Fee Claims. Insurance Medical Specialist Examiner
- 2015/12 - 現在 Ministry of Health, Labour and Welfare, Healthcare Workforce Supply and Demand Investigation Committee Committee Member
- 2015/12 - 現在 Ministry of Health, Labour and Welfare, Preventive Vaccination and Vaccine Subcommittee, Research and Development, Production and Distribution Division Adjunct Committee Member
- 2014/10 - 現在 Ministry of Health, Labour and Welfare, Study Group on the Development of Health and Labour Statistics Committee Member
- 2013/09 - 現在 Japan Health Economics Association Board of Director
- 2014/04 - 2024/07 Ministry of Internal Affairs and Communications, Committee for the Supervision of Competitive Bidding between Public and Private Sectors and Subcommittee on Local Public Services Committee Member
- 2020/06 - 2024/05 Japanese Economic Association Deligates・Board of Director
- 2020/02 - 2023/03 Ministry of Health, Labour and Welfare, Expert Verification Committee for Promotion of EBPM (Evidence-Based Policy Making) by the Ministry of Health, Labour and Welfare Committee Member
- 2022/12 - Shinjuku Ward in Tokyo Prefecture, National Health Insurance Operation Council. Public Interest Committee
- 2015/08 - 2022/03 Adachi Ward Board of Education, Childcare Facility Designated Manager Selection and Evaluation Committee Chairperson
- 2020/04 - 2021/03 Ministry of Health, Labour and Welfare, Commission for Investigating Data Utilization Deputy chair
- 2015/04 - 2021/03 Tokyo prefecture, Management Committee for Tokyo Metropolitan Public Hospitals Committee Member
- 2017/06 - 2020/03 National Institute of Population and Social Security Research, 6th Annual Population and Social Security Surveys (The National Survey on Family) Project Committee Member
- 2015/06 - 2020/03 JICA, Anti-Aging Subcommittee of the Social Security Sector Support Committee Comittee Member
- 2019/02 - 2019/12 Ministry of Health, Labour and Welfare, Study Group on Wage Substantiation Issues at 'Common Firms' in the Provisional Report of the Monthly Labor Survey Committee Member
- 2019/02 - 2019/06 Ministry of Health, Labour and Welfare, Study Group on the Health and Medical System for Pregnant and Childbirth Women Committee Member
- 2013/06 - 2019/06 Ministry of Health, Labour and Welfare, Health Insurance Bureau, Central Social Insurance Medical Council Public Interest Committee
- 2015/06 - 2019/01 Ministry of Health, Labour and Welfare, Subcommittee for Statistics of the Social Security Council. Adjunct Committee Member
- 2015/10 - 2018/09 Institute of Economic Research of Hitotsubashi University, Management Board Committee Member
- 2017/05 - 2018/03 Ministry of Health, Labour and Welfare, Committee for Corporate Review of Vaccine Price Research Conduct. Committee Member
- 2014/06 - 2017/06 Japanese Economic Association Delegates
- 2016/03 - 2017/03 Ministry of Health, Labour and Welfare, Healthcare Workforce Supply and Demand Investigation Committee - Subcommittee on Physical Therapists and Occupational Therapists Committee Member
- 2014/04 - 2016/03 Adachi Ward in Tokyo Prefecture, Committee for Residential Evaluation in Municipal Administration and Policy Chairperson
- 2014/07 - 2015/03 Ministry of Finance, Policy Research Institute, Study Group on Sustainable Long-Term Care Committee Member
- 2014/11 - Ministry of Health, Labour and Welfare Special Organization for Medical Fee Survey, Subcommittee on Consumption Tax Burden in Medical Institutions Specialist Examiner for Health Insurance and Medical Care
- 2009/10 - 2014/09 Kawasaki City in Kanagawa Prefecture, Committee for Residential Evaluation in Municipal Administration and Policy Committee Member
- 2009/04 - 2014/03 Adachi Ward in Tokyo Prefecture, Committee for Residential Evaluation in Municipal Administration and Policy Vice-Chairperson
- 2009/04 - 2010/03 Cabinet Office, Study Group on International Comparison of Measuring Outputs and Deflators Related to the Service Industry Committee Member
- 2005/05 - 2009/03 Adachi Ward in Tokyo Prefecture, Committee for Residential Evaluation in Municipal Administration and Policy Subcommittee Chairperson
- 2007/11 - 2008/03 Cabinet Office, Study Group on the Construction of 21st Century Administrative and Financial Systems Committee Member
- 2007/07 - 2008/03 Ministry of Health, Labour and Welfare, Investigative Commission on the Use of Claims Data to Improve the Quality of Medical Care Committee Member
- 2005/06 - 2006/03 The Research Institute of Economy, Trade and Industry (RIETI) Faculty Fellow
- 2004/06 - 2005/03 Adachi Ward in Tokyo Prefecture, Council for Appropriate User Fees for Child Care Support Services Chairperson
- 2002/04 - 2003/03 Cabinet Office, Prices Policy Division, Study Group on the Pricing of Nursery Care for Children Committee Member
- 2001/10 - 2002/03 Cabinet Office, Prices Policy Division, Study Group on Pricing of Long-Term Care Committee Member
- 2000/04 - 2002/03 National Institute of Population and Social Security Research, International Comparative Study Group on Trends in Reforming Social Security Systems. Committee Member