MI-ZAThe Next Chapter of Healthcare OkinawaOn-site & Online · All JapanJP|EN

Team

Our team

Your support comes from people who have run clinic operations as clinic administrators themselves.

Mie Ishizuka, Representative Director

CEO

Mie Ishizuka
Representative Director

Medical care should reach the people who need it. My role is to build the ways it gets there, together with people working in care and with companies.

After completing graduate studies at the Graduate School of Law, Kyushu University, I taught law at the University of the Ryukyus. Explaining the law to students, I came to feel that while the law has the power to protect people in weak positions, it is too far away to support them directly.

I wanted to support people more closely, so I became a medical social worker at a hospital. Working with patients, I realized there was a part of their lives the hospital could not see. Going into a patient's home, getting to know the family, and caring for the whole person and their life: the idea of home-based medical care resonated deeply with me. Seeing someone close to me struggle without knowing that home-based care existed also pushed me down this path.

For about ten years, I helped run a home-visit clinic as its administrator. While keeping the quality of care, I put better ways of working in place, and within six months staff who had been struggling with overtime no longer had any. It did not happen in one leap. Small fixes within one department were not enough, so we moved work across departments. Helping staff reach agreement when they feel stuck is, I believe, part of an administrator's job too.

Medical care only means something once it reaches people. I work on that last step.

Graduate School of Law, Kyushu University (completed)
Healthcare Management Program (introductory course), Juntendo University Graduate School (completed, 2018)
Board Member, Japan Home Medical Care Administration Liaison Council (一般社団法人日本在宅医療事務連絡会)

Areas of expertise: designing how decisions flow through an organization (organizational process facilitation), fee schedule revisions, medical advertising and website management, HR and labor management, physician recruitment and retention, training administrators and managers

Hidetoshi Ishizuka, Director

Director

Hidetoshi Ishizuka
Director

Administrator, Home Care Division, Shibagaki Clinic

Helping the clinic director make better decisions, and building a team that follows through on them. That is my role.

After completing graduate studies at Tokyo Institute of Technology, I joined ITOCHU Corporation, where I worked mainly on launching new businesses and on M&A, including four years in Australia. I then served at Gulliver International as head of corporate planning, marketing, franchise business and human resources.

After moving into medical and long-term care, I served as general manager of home-visit medical care and home-visit nursing operations. At a medical corporation running more than 50 medical and care facilities, I worked as administrator and general manager and brought every facility into profit.

I then joined Accenture as a Senior Principal, consulting on management and healthcare. In 2025, as head of business development, I helped a Japanese medical corporation open two clinics in Vietnam.

Today I still work on the front line as the administrator of a home care support clinic. The AI tools MI-ZA provides are ones I first use in my own workplace, and we offer them only after confirming the results.

Through years of work changing organizations, I have seen again and again what separates organizations that change from those that do not. Reading the situation on the ground accurately, and deciding clearly what must change: I believe that is what supports a director's management decisions.

Tokyo Institute of Technology Graduate School (completed)
Representative Director, Japan Home Medical Care Administration Liaison Council (一般社団法人日本在宅医療事務連絡会)

Areas of expertise: implementing generative AI and digital transformation in healthcare (automating claims and paperwork, using data) / management decision support and business planning / fee schedule revisions (home-based medical care and home-visit nursing) / marketing, patient acquisition and building referral partners / running home-visit nursing organizations and training managers

Contact

Start with a 30-minute
online call.

Tell us where things stand. You decide afterwards whether to work with us.