Dr. David Yeo Keat Him commenced his practice in KPJ Ipoh Specialist Hospital in July 1981 as a Resident Consultant Anaesthetist. He was attached to Kajang District Hospital as Medical Officer and later joined the Academic Staff Training Scheme at University Hospital as a Lecturer in Anaesthesia. In 2001, he was awarded Ahli Mahkota Perak (A.M.P). He has also served as the President of The Perak Medical Practitioners from 1983 to 1984.