Dr. Guillermo Gauthier Casaux

Medical registration number: 080839160

Dr Guillermo Gauthier Casaux is a medical doctor specialising in Gynaecology and Obstetrics with a subspecialisation in Assisted Reproduction. He has an extensive international career developed mainly in Spain and other European centres, with a strong focus on reproductive medicine and the care of patients in fertility units. Throughout his career, he has held clinical and medical leadership positions in assisted reproduction centres, combining clinical practice with the care of international patients and involvement in high-complexity reproductive medicine programmes.

Academic background

• Degree in Medicine and Surgery – University of La Plata (Argentina), 1980–1985.
• Specialist in Gynaecology and Obstetrics – Hospital Sant Roque, La Plata (Argentina), 1986–1990.
• Master’s Degree in Assisted Reproduction – IVI Barcelona, 2015.
• Languages: Spanish, English, French and Catalan.

Professional experience

• Since 2026: Specialist in Assisted Reproduction at IVF-Life Donostia (Instituto Vasco de Fertilidad).
• 2021–2026: Assisted Reproduction Physician – Private fertility centre (Barcelona).
• 2021–2023: Assisted Reproduction Physician (International Department) – Private hospital unit for assisted reproduction (Barcelona).
• 2019–2021: Medical Director of Assisted Reproduction – International private assisted reproduction centre (Ireland).
• More than 20 years of experience in assisted reproduction, gynaecology and obstetrics, working in fertility centres and private hospitals in Barcelona, as well as serving as a consultant for international assisted reproduction units.

Areas of expertise

His expertise focuses on reproductive medicine and assisted reproduction, with particular dedication to fertility treatments, care of international patients, and coordination of clinical assisted human reproduction programmes.

He also has experience in gynaecology and obstetrics, as well as in the comprehensive management of patients in fertility units, both in national and international contexts.

Medical societies and professional roles

• Member of the Spanish Fertility Society (SEF).
• Member of the European Society of Human Reproduction and Embryology (ESHRE).

Scientific and academic activity

Participation in leading international congresses in reproductive medicine, including ESHRE (Paris 2025 and Amsterdam 2024), as well as international programmes on fertility preservation and assisted reproduction.

He has also taken part in scientific meetings and continuous education programmes in reproductive medicine and genetics applied to reproduction.