Dr. Kattygnarath earned his Medical Doctor (MD) degree in 1997 at the Universite Pierre et Marie Curie (France), and completed his Obstetrics & Gynecology residency followed by a two-year Fellowship in Reproductive Endocrinology & Infertility. He also holds a Master of Science (MSc) degree in Human Reproduction (laboratory technology, andrology, embryology, pre-implantation genetic diagnosis and screening) from the famous Valencia Infertility Institute (IVI). He is also certified in Biostatistics from the University of California, San Diego.

Dr. Kattygnarath is a Licentiate of Medical Council of Canada and holds the Educational Commission of Foreign Medical Graduates (ECFMG) certificate (USA). He serves as a Fertility expert for the College of Physicians of Quebec, Supervisor for the College of Physicians and Surgeons of Ontario and is a member of American Society for Reproductive Medicine (ASRM), European Society for Human Reproduction and Embryology (ESHRE), and Canadian Fertility and Andrology Society (CFAS).

Dr. Kattygnarath is a fellow of the American College of Obstetrics and Gynecology. He also has privileges at MacKenzie Health Hospital in Richmond Hill, Ontario.

Dr. Kattygnarath has more than 10 years experience in Fertility treatments and Gynecology and is the author of The Handbook of Assisted Reproductive Technology and Infertility. Dr Kattygnarath is fluent in English, French and Thai.