Meet Our Fertility Specialists & Staff
TRIO is proud to have the largest in-house fertility medical team in Canada with 13 fertility specialists and over 45 supporting medical staff. Our patients benefit from our vast knowledge, breadth of experience, unique subspecialties, and collaborative approach to fertility care.
You deserve the opportunity to grow the family that you’ve been dreaming about — we can help.
Medical Team

Dr. Kaajal Abrol, MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Robert F. Casper MD, FRCSC, REI (He/Him)
Scientific Director and Founding Partner, Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Arielle Cantor, BSc., MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Paul Chang, MD, FRCSC, REI (He/Him)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Cassandra Greenberg, B.MSc., MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Beth Gunn, BSc, MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Arnold Mahesan, MD, FRCSC, FACOG, REI (He/Him)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Katharine Phillips, B.Sc., MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Ruth Ronn, MD, FRCSC, REI (She/Her)
Reproductive Endocrinology & Infertility Specialist (REI)
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Dr. Sony Sierra, MD, FRCSC, REI (She/Her)
Deputy Medical Director and Partner, Reproductive Endocrinology & Infertility Specialist (REI)
Read bioNursing Team at TRIO
At TRIO, our team of 20 nurses work alongside our fertility doctors and is here to help make your journey as smooth and informed as possible.
When you email us with your Day 1 and come to the clinic for your blood and ultrasound tests, shortly afterwards, you’ll meet with your nurse. She will guide you through the process, explaining next steps, including reviewing your ultrasound and discussing fertility medication. That afternoon, she’ll provide a message on your app telling you exactly what medication to take, including when and how. If you’re coming to TRIO through a satellite clinic, your nurse will call you with your results.
Your nurse is an invaluable member of your team at TRIO and is a phone call away. Throughout your journey, she will provide information, education and answers to your questions.
