Waterstone Clinic has built the most advanced laboratory of its kind in Ireland. Our team in the laboratory have medical, research and technical backgrounds, with most holding PhD degrees.

Our senior embryologists are certified in their speciality by the European Society of Human Reproduction and Embryology (ESHRE), an internationally recognised laboratory qualification

Dr Tim Dineen

Senior Clinical Embryologist & Laboratory Manager

Dr Tim Dineen is a founding member of Waterstone Clinic and leads the Embryology and Andrology teams in the Waterstone lab. Dr Dineen received his PhD from NUI Galway, and undertook further specialist training in Genetic Counselling. Dr Dineen is an ESHRE certified Senior Clinical Embryologist and has a keen...
Read More

Dr Xiao Zhang

Senior Embryologist, Head of Research & Development

Dr Xiao Zhang is the Head of Research & Development at Waterstone Clinic. Dr Zhang is a medical doctor and general surgeon, who received a PhD in Reproductive Medicine from Peking University in China. In 2003, he was the first doctor to achieve an assisted pregnancy from frozen eggs. Dr...
Read More

Adrienn Kovacs

Senior Embryologist

Adrienn Kovacs is a senior embryologist in the laboratory. She joined the team in 2008 as a proficient ICSI practitioner and was central to the establishment of the donor sperm service in the clinic. Adri is part of the embryo biopsy team at Waterstone Clinic which offers our successful PGD...
Read More

Dr Julie O'Callaghan


Dr Julie O'Callaghan graduated with a Bachelor of Genetics (honours) from University College Cork in 2004. She then proceeded to complete a PhD and post-doctoral research in the area of Molecular Genetics, specifically focusing on 'Pseudomonas aeruginosa - Cystic Fibrosis host interactions'. This research resulted in a number of presentations...
Read More

Ramona Mihart


Ramona Mihart is an embryologist in the laboratory. Her main interests include reproductive genetics, and safety and quality in Assisted Reproduction Techniques. She was involved in the validation of an oocyte vitrification system that has been introduced in the clinic and is a central member of the embryo biopsy team...
Read More

Jennifer Culligan


Jennifer Culligan is an embryologist in our laboratory.. She has a keen interest in male infertility and is the co-coordinator of the clinic’s donor sperm programme. Jennifer is an active member the Irish Clinical Embryologists society (ICE), and has been a member of the executive committee, as well as being...
Read More

Waterstone Clinic is regulated and licensed by the Health Products Regulatory Authority (HPRA), TE-007. We are inspected by the HPRA to ensure compliance with European tissues and cells legislation.

We operate a comprehensive quality management system, with regular internal audits to ensure standards are maintained. We are committed to delivering a professional service to the highest possible ethical and clinical standards.

Print this page
Speak to our team