Hiroyuki Yamasaki

About

Dr. Hiroyuki Yamasaki is Vice Director of Kato Ladies Clinic, bringing nearly four decades of obstetrics and gynecology experience to one of the world’s busiest IVF centers. He graduated from Shimane Medical University in 1987, held hospital posts including Saiseikai Gotsu General Hospital, and joined KLC in 1996. He then broadened his reproductive medicine career as Vice Director of Towako Women’s Clinic (1997) and as director of an IVF clinic in Kanazawa (2003), before returning to KLC in 2009. He served as Clinical Director from 2021 and was appointed Vice Director in 2023.

Clinical Expertise

• Natural-cycle and minimal-stimulation IVF cycle management
• ICSI and embryo transfer procedures
• Diagnosis and treatment of female infertility, including age-related decline
• Longitudinal care planning for patients with difficult or prolonged fertility histories

Why Choose Dr. Hiroyuki Yamasaki

Few physicians in Japanese reproductive medicine have seen as much of its development as Dr. Yamasaki: clinic leadership roles in both Kanazawa and the Towako group, plus three decades at the sharp end of IVF practice. That breadth — hospital gynecology, standalone IVF clinic direction, and KLC’s high-volume lab environment — translates into pragmatic protocol choices and steady hands with embryo transfer. He holds dual certification as a JSOG obstetrics and gynecology specialist and a Japan Society for Reproductive Medicine reproductive medicine specialist.

Professional Affiliations & Certifications

• Specialist in Obstetrics and Gynecology, Japan Society of Obstetrics and Gynecology (JSOG)
• Specialist in Reproductive Medicine, Japan Society for Reproductive Medicine

Suitable For

• Patients who value experience: a doctor whose career spans the formative decades of IVF in Japan.
• Couples starting IVF or ICSI: full-cycle care under KLC’s minimal-medication philosophy.
• Women with complex fertility histories: second looks at prior failed cycles with a vice director’s perspective.