Dr. Mariya Koval, Doctor of Medicine (Ukraine), BSc Human Biology (Canada). Dr Koval graduated from the Medical University in Lviv, Ukraine. She completed her residency in Paediatrics in the United States and worked as Community Paediatrician in North Carolina, US. Dr Koval moved to Australia almost 5 years ago, and has worked in different hospitals along East Coast of Australia. Mariya joined Whitsundays Doctors Service in August 2016. Her interests include General Practice and Paediatrics.