Mark Toh practices at Cognitive Health Consultancy International Pte Ltd in Novena, Singapore and Promises Healthcare in Novena, Singapore. He completed BA - Psychology from University of Waterloo, Ontario,MA in Theology from Fuller Theological Seminary, California, USA and PhD - Clinical Psychology from Fuller Graduate School of Psychology, California, USA. He is a member of American Psychological Association. Some of the services provided by the doctor are: Adult Psychopathology and Children and Adolescent Therapy etc.