• Specialist in Internal Medicine, an Epidemiologist and Biostatistician, and a Professor of Psychiatry at UBC, where he was previously Professor of Internal Medicine,  
  • Expert in the treatment and study of eating and weight disorders and extensive experience in the design of clinical trials for treatments for eating disorders. 
  • Pioneered several new internationally recognized treatments and has more than 30 years of experience in eating disorder and obesity research and treatment and has 280 publications including 131 referenced articles, 23 invited chapters, and 9 books.  
  • Previously Head of General Internal Medicine at St. Paul’s Hospital and UBC, Head of the Obesity Clinic at St. Paul’s Hospital, Leader of the BC Eating Disorders Epidemiology Project in the Centre for Health Evaluation and Outcome Sciences, BC Provincial Director of Eating Disorders, and Medical Director of the Woodstone Residential Treatment Centre for Eating Disorders. He is a Member of the Brain Research Centre at UBC.  
  • Expertise includes eating disorders, anorexia nervosa, bulimia nervosa, binge eating disorder, avoidant/restrictive food intake disorder (ARFID), phobia, emetophobia, obesity, imaging of the brain using live 3D electrical brain scans, and treatment using live neurofeedback, vagus nerve stimulation and transcranial electrical stimulation.