She graduated from Cerrahpasa Faculty of Medicine in 2000. Dr. Öznur Küçük completed her specialty in the field of Pediatrics in 2005 at Dr.Lütfi Kirdar Kartal Training and Research Hospital.

Dr. Küçük received her associate professor degree from

Yeditepe University Faculty of Medicine in 2015.

Between 2005 and 2006, she performed her compulsory service at

Malatya Doğanşehir State Hospital.

Having worked at Üsküdar State Hospital between 2006-2007, Dr. Küçük was temporarily employed at Paşabahçe State Hospital until 2010.

She was assistant professor at the Faculty of Medicine of Bozok University, where she served from 2010-2011. She was awarded the Ass.Prof. title.

Dr.Küçük worked at the Private Istanbul Medipol Hospital between 2016 and 2109. 

Dr. Küçük speaking English as a foreign language; She is a member of Turkish Pediatrics Association and National Pediatrics Association.

She attended National and International congresses and meetings related to her field. Dr.Küçük has published numerous articles and papers in national and international journals.

Since April, she has started admitting patients at Türkiye Hospital Pediatric Clinic.