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About
Dr. Mitsuyoshi Amita is an adjunct physician at Kato Ladies Clinic (KLC) in Shinjuku, Tokyo, joining the clinic’s minimal-stimulation and natural-cycle IVF team in 2023. He is one of the relatively few fertility physicians in Japan who also holds a clinical genetics certification, a combination that matters in embryo screening and inherited-condition counseling.
He earned his MD from Yamagata University School of Medicine in 2002, completed there a doctorate in 2010, and spent time as a research fellow at the University of Missouri in the United States from 2011. His clinical appointments include the infertility service at the National Center for Child Health and Development, Japan’s flagship children’s hospital, and fertility clinic practice in Kobe before moving to KLC.
Dr. Amita works across the full treatment pathway at KLC, from ovarian stimulation planning through egg retrieval, ICSI and embryo transfer, with particular strength in preimplantation genetic testing decisions.
Clinical Expertise
- In Vitro Fertilization (IVF): natural-cycle and mild-stimulation protocols that keep medication load low, with individualized planning by age and ovarian reserve
- Intracytoplasmic Sperm Injection (ICSI): micromanipulation fertilization for male-factor infertility and previous fertilization failure
- PGT-A and PGT-SR: preimplantation screening for chromosome aneuploidy and structural rearrangement, aimed at reducing recurrent implantation failure and miscarriage risk
- Reproductive medicine and genetics consultation: integrating genetic assessment into fertility treatment planning
Why Choose Dr. Mitsuyoshi Amita
Dr. Amita holds certification as a Clinical Genetic Specialist from the Japan Society of Human Genetics on top of his board certifications in obstetrics-gynecology and reproductive medicine. For patients weighing PGT-A testing, or couples with a known chromosomal or hereditary concern, that dual credentialing means the genetic and reproductive sides of the decision are covered by the same physician.
His research fellowship at the University of Missouri and his years in the infertility department of the National Center for Child Health and Development gave him experience with complex referral cases, including patients where standard stimulation strategies have failed. Within KLC he is a certified specialist and instructor in both JSOG and JSRM programs, the seniority tier that supervises ART standards and ethics.
Professional Affiliations
Board-Certified Specialist and Certified Instructor in Obstetrics and Gynecology, Japan Society of Obstetrics and Gynecology (JSOG). Certified Specialist and Instructor in Reproductive Medicine, Japanese Society for Reproductive Medicine (JSRM). Certified Clinical Genetic Specialist, Japan Society of Human Genetics. Qualifications are listed on the Kato Ladies Clinic physician team page.
Suitable For
- Patients considering IVF with PGT-A screening: he can interpret genetic screening results in the context of the patient’s overall stimulation plan rather than as a separate consultation.
- Couples with complex or unexplained infertility: experience at a national referral center’s infertility department translates into systematic re-evaluation of difficult cases.
- Patients who value combined genetics and fertility expertise: a good fit for families with chromosomal rearrangements, recurrent pregnancy loss, or hereditary disease risk planning pregnancies.