Dr. Callum has been a member of the Roomchang staff since 2007. A former consultant in pediatric dentistry at the Auckland Hospital and the Senior Lecturer at the Faculty of Dentistry in New Zealand. He was also a Regional Principal Dental Officer for the School Dental Service in New Zealand.

Dr. Callum has trained in many countries including New Zealand, Australia and the United States, he is currently the Head of the Department of Dentistry at the University of Puthisastra. As a specialist in Pediatric Dentistry he provides the full range of pediatric dental services to children up to the age of 18 years. At Roomchang he is very happy to be working alongside some of Cambodia’s top dental clinicians.

He is also the Dental Director of the Dental focused NGO One-2-One Cambodia, and part-time adviser at the Oral Health Bureau at the Ministry of Health.