David Walker BVetMed(Hons) DipACVIM DipECVIM-CA FRCVS is Chief Medical Officer and VP Medical Affairs for Mars Veterinary Health Europe. A Royal College of Veterinary Surgeons, American and European Specialist in Small Animal Internal Medicine, David combines over 20 years of clinical, operational and executive leadership experience across primary care and specialist referral practice. He has held senior leadership roles including Managing Director, Hospital Director and Chief Medical Officer within Linnaeus and Mars Veterinary Health, leading medical strategy, clinical governance, quality improvement, talent development and large-scale business transformation. David is passionate about improving patient outcomes, developing veterinary professionals and building high-performing teams that successfully balance clinical excellence with sustainable business performance.