Rika Hayashi

About

Dr. Rika Hayashi earned her MD at Toho University’s Faculty of Medicine, trained in its affiliated hospital system, and joined Sugiyama Ob-Gyn Clinic Shinjuku in 2022 with more than a decade of experience already behind her in reproductive medicine. She has 10-plus years both as a physician overall and in fertility care specifically.

Her credential set stands out even in a specialist clinic: JSOG board certification in obstetrics and gynecology, Reproductive Medicine Specialist of the Japan Society for Reproductive Medicine, Specialist of the Japan Society of Medical Ultrasonics, and Clinical Genetic Specialist of the Japan Society of Human Genetics. Her practice covers ovulation induction, recurrent implantation failure, genetic counseling, PGT-A and low AMH. She is in clinic Mondays, Wednesdays, Thursdays and Saturdays.

Clinical Expertise

• Ovulation induction and stimulation monitoring
• Recurrent implantation failure assessment
• Genetic counseling before and during fertility treatment
• PGT-A indication, interpretation and follow-through
• Ultrasound-based ovarian and uterine assessment (board-certified ultrasonographer)
• Low AMH / diminished ovarian reserve management

Why Choose Dr. Rika Hayashi

Very few fertility physicians in Japan also hold the national clinical genetics board — Dr. Hayashi does, which lets patients face PGT-A and hereditary-risk questions with an actual genetic specialist instead of relying on external counselors. Add her diagnostic ultrasound certification and every scan in her cycles is read by a double-boarded evaluator. The clinic’s own profile of her pairs this depth with decisiveness: accurate diagnosis, swift treatment, results-oriented planning — recommended for patients who want direction, not drift. She also speaks openly about the isolation of infertility, promising proposals calibrated to each patient’s situation, starting “from the smallest step.”

Professional Affiliations

• Board Certified Obstetrician and Gynecologist, Japan Society of Obstetrics and Gynecology (JSOG)
• Reproductive Medicine Specialist, Japan Society for Reproductive Medicine (JSRM)
• Specialist in Diagnostic Ultrasound, Japan Society of Medical Ultrasonics
• Clinical Genetic Specialist, Japan Society of Human Genetics

Suitable For

• Patients just starting treatment: basic questions answered clearly before any decision is asked of them
• Result-oriented patients: quick, well-evidenced treatment calls
• Patients needing genetic counseling or PGT-A: a genuinely dual-qualified fertility-and-genetics specialist
• Low AMH patients: individualized stimulation guided by expert ultrasound assessment