All our doctors speak English, although they are not native speakers, so their proficiency varies. Please note that some of our staff, including nurses and medical clerks, do not speak much English, so you may be assisted with translation software.
Dr. Yoko Wakimizu
Medical Director, Hada no Clinic Koenji
(Koenji: Mon, Fri & Sat)
Hello. My name is Dr. Wakimizu, vice director of the clinic.
I entered medical school after graduating from pharmacy school, so I am licensed as both a pharmacist and a physician.
I have a long experience as a cosmetic dermatologist, and in addition to acne and AGA treatment, I have been involved in anti-aging treatments such as treatment with various lasers and injection of hyaluronic acid and Botox.
In recent years, the demand for cosmetic medicine has been increasing for both men and women, and the cosmetic medicine market is rapidly expanding. Medical devices and treatments are evolving daily, and it is believed that they are contributing to the resolution of many people’s skin problems.
However, it cannot be said that patient satisfaction has improved in response to the evolution of cosmetic medicine. This is because, while cosmetic medicine contributes to the resolution of patients’ problems, it is also a business that makes money from patients’ problems.
Some patients may have had the experience of being aggressively recommended expensive surgeries or treatments at beauty clinics. However, I myself am not comfortable recommending unnecessarily expensive cosmetic procedures to my patients and cannot force myself to advertise, etc. I gradually became conflicted about the situation I was in.
Cosmetic practice was interesting and I found it rewarding to be able to solve patients’ problems. However, although I had a passion to study more deeply, I was thinking of stepping back from cosmetic medicine after worrying about various issues.
Just at that time, I had the opportunity to talk to Director Iwahashi of this clinic. Witnessing his sincerity in his practice, his wealth of knowledge, and his insatiable inquisitiveness, I was able to make up my mind to continue practicing cosmetic medicine. I feel that it was a fortunate event that determined my way of life as a doctor.
We are constantly updating our practice by incorporating the latest findings from research and clinical experience into our evidence-based treatments. We do not recommend any treatment forcibly, and we will choose a treatment together with you according to your symptoms.
Because I have suffered through the lights and shadows of cosmetic medicine, I strongly feel the sincerity of our clinic, and I feel a mission to continue this sincere medical system in the future.
It would be my greatest pleasure as a physician if I could support your smile. Please feel free to contact us for consultation as we will make every effort to provide responsible and wholehearted medical care.
As for English, we still have a lot to learn and there are many things that we are not perfect in. We appreciate your understanding.
From Yoko Wakimizu, MD
| Short CV | Qualifications and Academic Affiliations |
|---|---|
| 2007 Graduated from Tokyo Univ of Pharmacy and Life Sciences, Faculty of Pharmacy 2011 Graduated from Gunma Univ School of Medicine Dermatology, Maebashi Red Cross Hospital Dermatology, Kyorin Univ Hospital Cosmetic dermatology at a clinic in Tokyo 2018 Medical Corporation HADA NO CLINIC | The Japanese Society of Dermatology Certified Medical Specialist, Japanese Society of Anti-Aging Medicine Board Certified Doctor, Japanese Society of Hot Springs and Climate Physics National Qualification as a Pharmacist Qualified to administer Botox Vista |
| Short CV | 2007 Graduated from Tokyo Univ of Pharmacy and Life Sciences, Faculty of Pharmacy 2011 Graduated from Gunma Univ School of Medicine Dermatology, Maebashi Red Cross Hospital Dermatology, Kyorin Univ Hospital Cosmetic dermatology at a clinic in Tokyo 2018 Medical Corporation HADA NO CLINIC |
|---|---|
| Qualifications and Academic Affiliations | The Japanese Society of Dermatology Certified Medical Specialist, Japanese Society of Anti-Aging Medicine Board Certified Doctor, Japanese Society of Hot Springs and Climate Physics National Qualification as a Pharmacist Qualified to administer Botox Vista |
Dr. Nahoko Matsui
Medical Director, Hada no Clinic Kojimachi
(Koenji: Tue & Wed / Kojimachi: Mon & Thu*)
*Thursdays: Morning only.
Welcome. My name is Dr. Matsui, and I am the Director of Hada no Clinic Kojimachi.
I currently practice aesthetic dermatology while raising my young child. The principle that guides my practice is providing comprehensive aesthetic care by evaluating the face as a whole rather than focusing on individual concerns.
Skin concerns such as pigmentation, enlarged pores, and skin laxity should not be treated in isolation. By carefully assessing the overall balance of the face and each patient’s unique skin condition, I believe we can create a personalized treatment plan that achieves natural, beautiful results. To accomplish this, I combine various treatment options—including laser and radiofrequency procedures, injectable treatments, oral medications, and daily skincare—to provide care tailored to each individual.
I also place great importance on skincare during consultations. A consistent daily skincare routine is the foundation for enhancing the results of aesthetic treatments and maintaining healthy skin over the long term. I will recommend practical, sustainable skincare that suits your skin type and lifestyle.
I believe aesthetic medicine is not simply about performing individual procedures—it is about partnering with patients to help them achieve and maintain healthy, beautiful skin over time. Whether you are considering aesthetic treatment for the first time or have been visiting us for years, I strive to create an environment where you feel comfortable asking questions and confident that you are receiving thoughtful, personalized care.
No concern is too small. I warmly welcome you to discuss any questions or goals you may have, and I look forward to helping you on your skincare journey.
From Nahoko Matsui, MD
| Short CV | Qualifications and Academic Affiliations |
|---|---|
| 2014 Affiliated with University Hospital Department 2025 Medical Corporation Hada no Clinic | Board Certified Physician, Japanese Society of Internal Medicine Respiratory Medicine Specialist, Japanese Respiratory Society Certified Smoking Cessation Instructor, Japan Society for Tobacco Control Certified Occupational Physician, Japan Medical Association Member, Japanese Society of Aesthetic Internal Medicine Botox Vista® Injection Certification |
| Short CV | 2014 Affiliated with University Hospital Department 2025 Medical Corporation Hada no Clinic |
|---|---|
| Qualifications and Academic Affiliations | Board Certified Physician, Japanese Society of Internal Medicine Respiratory Medicine Specialist, Japanese Respiratory Society Certified Smoking Cessation Instructor, Japan Society for Tobacco Control Certified Occupational Physician, Japan Medical Association Member, Japanese Society of Aesthetic Internal Medicine Botox Vista® Injection Certification |
Dr. Taishi Sakima
(Koenji: Sun & Thu / Kojimachi: Tue, Wed & Sat)
Hello, my name is Dr. Sakima. I have recently joined the HADA NO CLINIC.
I specialize in radiology, with expertise in anatomy, CT, MRI, ultrasound, and image-guided interventional procedures (IVR). I have extensive experience in diagnosing diseases, including cancer, performing catheter-based vascular treatments (excluding the brain and heart), and conducting biopsies on various organs.
For eight years, I served as a medical officer in the Japan Air Self-Defense Force, including two years in a remote island clinic, providing comprehensive care across dermatology and internal medicine. Having struggled with sensitive skin myself, I have always pursued the latest dermatological treatments.
I was drawn to Hada Clinic’s pioneering approach in introducing isotretinoin therapy for severe acne in Japan. I strongly resonate with its commitment to evidence-based, high-quality care in private practice.
I provide personalized treatments for acne and acne scars, including isotretinoin, hormonal therapy, lasers, and subcision. For AGA, I offer standard treatments such as finasteride, dutasteride, and minoxidil. With my expertise in anatomy and percutaneous procedures, I prioritize safety in injectable treatments like Botox and fillers. I also apply my knowledge of radiation physics to ensure safe and effective laser treatments for pigmentation and mole removal.
Beyond our clinic’s treatments, I am happy to advise on other procedures and general medical concerns. Feel free to reach out with any questions.
From Taishi Sakima, MD
| Short CV | Qualifications and Academic Affiliations |
|---|---|
| 2017 Graduated from the National Defense Medical College Boston Medical Center – Clinical Training 2017 National Defense Medical College Hospital 2018 Japan Self-Defense Forces Central Hospital 2019 Japan Self-Defense Forces Fukuoka Hospital 2020 National Defense Medical College Hospital 2024 Medical Corporation HADA NO CLINIC | Board-Certified Radiologist, Japanese Medical Specialty Board Board-Certified Diagnostic Radiologist, Japanese Medical Specialty Board Member, Japanese Society of Interventional Radiology (IVR) Member, Japanese Radiological Society Certified Injector of Botox Vista® Certified Injector of Juvederm Vista® |
| Short CV | 2017 Graduated from the National Defense Medical College Boston Medical Center – Clinical Training 2017 National Defense Medical College Hospital 2018 Japan Self-Defense Forces Central Hospital 2019 Japan Self-Defense Forces Fukuoka Hospital 2020 National Defense Medical College Hospital 2024 Medical Corporation HADA NO CLINIC |
|---|---|
| Qualifications and Academic Affiliations | Board-Certified Radiologist, Japanese Medical Specialty Board Board-Certified Diagnostic Radiologist, Japanese Medical Specialty Board Member, Japanese Society of Interventional Radiology (IVR) Member, Japanese Radiological Society Certified Injector of Botox Vista® Certified Injector of Juvederm Vista® |
Dr. Yurie Yamazaki
(Kojimachi: Fri, Sat & Sun)
Hello, my name is Dr. Yurie Yamazaki.
I have worked as a cardiologist, focusing on precise catheter-based procedures, always placing the highest importance on accuracy and patient safety. One of the greatest rewards of my work has been seeing my patients regain their quality of life and watching their expressions and demeanor brighten over time.
I am also deeply drawn to aesthetic medicine because of its potential to improve not only appearance but also overall well-being and quality of life. Through aesthetic treatments, I hope to help patients live richer, more fulfilling lives.
In fact, I personally struggled with acne during my student days. I visited dermatology clinics and tried countless skincare products in search of effective solutions. Because of this experience, I understand how challenging skin concerns can be, and I am committed to offering compassionate care and effective treatments tailored to each individual.
During consultations, I take time to listen carefully to each patient’s concerns and work together to find the best treatment plan. By leveraging my background in internal medicine, I aim to approach aesthetic care from a comprehensive perspective, always staying updated on the latest knowledge and techniques. My goal is to support lasting beauty and health for every patient.
I strive to provide care that makes patients feel, “I’m glad I came here,” and “I want to come back again.” Please feel free to consult me about anything, no matter how small it may seem.
From Yurie Yamazaki, MD
| Short CV | Qualifications and Academic Affiliations |
|---|---|
| 2018 Graduated from Tokyo Women’s Medical University, Faculty of Medicine 2018 Tokyo Medical Center 2023 Keiyu Hospital 2025 Medical Corporation HADA NO CLINIC | Board Certified Member, Japanese Society of Internal Medicine Board Certified Cardiologist, Japanese Circulation Society Member, Japanese Association of Cardiovascular Intervention and Therapeutics Member, Japanese Heart Rhythm Society |
| Short CV | 2018 Graduated from Tokyo Women’s Medical University, Faculty of Medicine 2018 Tokyo Medical Center 2023 Keiyu Hospital 2025 Medical Corporation HADA NO CLINIC |
|---|---|
| Qualifications and Academic Affiliations | Board Certified Member, Japanese Society of Internal Medicine Board Certified Cardiologist, Japanese Circulation Society Member, Japanese Association of Cardiovascular Intervention and Therapeutics Member, Japanese Heart Rhythm Society |
Dr. Yosuke Iwahashi
Medical Advisor
Hello, I am Yosuke Iwahashi, founder of Hada no Clinic.
Since opening the clinic in 2015, I have been dedicated to the practice of cosmetic dermatology, with a particular focus on acne treatment. Drawing not only on medical evidence but also on my own experience as a patient, I have always valued providing careful, evidence-based care while remaining closely attuned to each patient’s concerns.
At Hada no Clinic, I have worked with patients facing a wide range of concerns, including severe acne, acne scarring, AGA, pigmentation, dullness, warts, moles, and medical weight-loss treatment. At the same time, I have also been committed to building a strong clinical system and mentoring the next generation of physicians.
Our leadership structure has now evolved, with Dr. Matsuda serving as Director of the Kojimachi Clinic and Dr. Wakumizu serving as Director of the Koenji Clinic. Going forward, in addition to my role as founder, I will continue to support the clinic as a medical advisor, helping to pass on the clinical philosophy and expertise we have developed over the years.
Thank you for your continued trust and support of Hada no Clinic.
From Yosuke Iwahashi, MD
