Clinic Director Message
My medical career began in 1989 as a practicing clinician.
I was given the opportunity to work as a research fellow at the Cleveland Clinic in the United States from 1996 for three years, during which I dedicated myself to basic research from morning to night.
After returning to the university in 1999, I continued to refine my clinical skills and have handled numerous cases, including kidney transplants and robotic surgeries.
Since 2016, I have been engaged in regenerative medicine using cultured stem cell supernatants as part of private medical practice at the Ginza Solaria Clinic.Subsequently, I focused on research and clinical application of deciduous tooth dental pulp stem cells, and in 2021, I established Solaria Clinic Tokyo as a center for further research and practice of stem cell therapy, NK cell immunotherapy, and NKT cell-targeted cancer treatments.
In April of last year, we relocated from Nihonbashi to Ginza, where we established an in-house CPC (Cell Processing Center) to advance further research and clinical work. In July 2025, we also launched an insurance-covered urology department.
In this prestigious location of Ginza, I will continue to devote myself to providing specialized care and treatment to as many patients as possible.
Clinic Director Profile
Specialties
Regenerative Medicine
Urological Malignancies, Dialysis, Kidney Transplantation

Clinic Director Shoji Koga
Career History
1989: Graduated from University of Occupational and Environmental Health, Japan
1989: Joined Kidney Center, Tokyo Women’s Medical University
1995: Assistant, Department of Urology, Tokyo Women’s Medical University
1996: Studied transplant medicine at Cleveland Clinic, Ohio, USA
1999: Assistant, Department of Urology, Tokyo Women’s Medical University
2003: Lecturer, Department of Urology, Tokyo Medical University
2009: Appointed Chief of Urology, Director of Dialysis Center, and Director of Transplant/Regenerative Medicine Center, Edogawa Hospital (current)
2017: Special Advisor, Solaria Clinic (current)
2017: CEO, Panajee Inc. (current)
2020: CEO, DEXON Pharmaceuticals Co., Ltd. (current)
2021: Vice President, Edogawa Hospital (current)
2022: Chairman, RE Clinic Group
2024: Appointed Director, Solaria Clinic Tokyo
Qualifications
- Doctor of Medicine (Ph.D.)
- Certified Regenerative Medicine Specialist (Japanese Society for Regenerative Medicine)
- Councilor, Japanese Society of Anti-Aging Medicine
- Specialist, Japan Society for Transplantation
- Certified Proctor of Urologic Robot-Assisted Surgery (Japanese Endourology Association)
- Board Certified Urologist & Instructor (Japanese Urological Association)
- Board Certified Nephrologist & Instructor (Japanese Society for Dialysis Therapy)
Memberships
- Japanese Society for Regenerative Medicine
- Japanese Urological Association
- Japanese Endourology Association
- Japanese Society for Dialysis Therapy
- Japan Society for Transplantation
- Japanese Society for Peritoneal Dialysis
- Japanese Society of Cancer Therapy
- Japanese Society of Anti-Aging Medicine
Our Physicians
Specialties
Urology – Benign Prostatic Hyperplasia (BPH), Urolithiasis, Bladder Cancer

Fumio Tsukuda
Career History
1994: Graduated from Kagawa Medical University
1998: Completed Doctoral Program, Graduate School of Medicine, Kagawa Medical University
1998: Assistant, Kagawa Medical University Hospital
1998: Chief, Department of Urology, Mizushima Kyodo Hospital
1999: Assistant, Kagawa University Hospital
2000: Assistant, Urology, Kidney Center, Tokyo Women’s Medical University
2001: Assistant, Kagawa University Hospital
2006: Deputy Director, Urology, Ehime Rosai Hospital
2007: Director, Urology, Ehime Rosai Hospital
2010: Lecturer, Department of Urology, Hyogo College of Medicine
2011: Chief, Urology, Tanushimaru Central Hospital
2013: Joined Edogawa Hospital
Qualifications
- Doctor of Medicine (Ph.D.)
- Certified Kidney Transplant Specialist (Japanese Society for Clinical Renal Transplantation)
Memberships
- Japanese Urological Association
- Japanese Society for Clinical Renal Transplantation
- Japanese Endourology Association
- Japanese Society of Cancer Therapy
- Japanese Society for Dialysis Therapy
- Japanese Society of Urologic Oncology
Specialties
Internal Medicine, Regenerative Medicine

Kenichiro Suzuki
Career History
After completing residency, Dr. Suzuki specialized in diabetes and endocrinology at a general hospital. He later focused on preventive medicine and internal medicine, and has served as Director of RE Clinic Ginza since 2022.
Qualifications
- Board Certified in Anti-Aging Medicine
- Certified Internist
- Certified Occupational Physician (Japan Medical Association)
Memberships
- Japan Endocrine Society
- Japan Diabetes Society
- Japanese Society of Internal Medicine
- Japanese Society of Anti-Aging Medicine
- Japanese Society for Regenerative Medicine