Mari Takamiya

About

Dr. Mari Takamiya earned her MD at Saga University’s Faculty of Medicine and completed both her initial and advanced training at the Japanese Red Cross Medical Center in Tokyo, followed by clinical posts at Kahoku General Hospital and Kitasato University Medical Center — a broad generalist OB-GYN foundation before she joined Sugiyama Ob-Gyn Clinic Shinjuku in 2024. She is a board-certified obstetrician and gynecologist of the Japan Society of Obstetrics and Gynecology.

Her clinical focus is general infertility, ovulation induction, IVF and the management of low AMH / diminished ovarian reserve. She is in clinic Tuesdays through Fridays and Sundays, covering the branch’s evening slots.

Clinical Expertise

• General infertility evaluation and treatment
• Ovulation induction and cycle monitoring
• IVF counseling and cycle support
• Low AMH / diminished ovarian reserve management
• Option-by-option explanation of treatment benefits and trade-offs

Why Choose Dr. Mari Takamiya

Dr. Takamiya’s defining habit, in her own words, is explaining the merits and the downsides of every treatment direction before a patient chooses — no pushy single-track planning. That makes her a particularly good first physician for patients arriving unsure what they should even be asking, because her consultations double as an orientation to their options. She pairs this with a genuine listening style: the clinic recommends her to patients who want their own preferences reflected in the plan rather than a template protocol. Her path through strong general-hospital training programs also means common gynecological comorbidities are assessed with a wider lens than a pure IVF-only viewpoint.

Professional Affiliations

• Board Certified Obstetrician and Gynecologist, Japan Society of Obstetrics and Gynecology (JSOG)

Suitable For

• Patients who want to start from the basics: full explanation from testing through to choosing a treatment path
• Patients weighing their options: pros-and-cons counseling that keeps the decision with the patient
• Low AMH patients: measurement-informed ovulation induction and IVF planning