Dr. Margie Scherk is a private practitioner who founded the Cats Only Veterinary Clinic, in Vancouver, BC in 1986. She graduated from the University of Guelph in 1982 with a DVM from the Ontario Veterinary College. In 1995 she became board certified in the specialty of Feline Practice by the American Board of Veterinary Practitioners (ABVP). One of the things she is most proud of is her pioneering the use of the Transdermal Fentanyl Patch for the alleviation of pain in companion animals. She has collaborated and co-authored several other papers; she has written chapters for Ettinger and Feldman's Textbook of Veterinary Internal Medicine, numerous chapters in Little’s The Cat, Clinical Medicine and Management as well as chapters in several other texts.

She has served on the Board of the American Association of Feline Practitioners and was 2007 President of the organization. She has the privilege of being on the AAFP Feline Vaccine Recommendations Panel since 1995. She has volunteered also on the ABVP exam committee and the CE committee and has served on the scientific advisory committee for the World Small Animal Veterinary Congress and been the editor of the WSAVA Proceedings for the Vancouver 2001 meeting. As a participant on the North American Veterinary Licensing Exam Committee (NAVLE), she interacts with top teachers and practitioners to create a fair way of assessing the competence of new graduates. She founded the Feline Internal Medicine folder on Veterinary Information Network (VIN), and through many opportunities on the online medium, has grown to love teaching veterinarians, vet students and veterinary care providers both online and around the world. She is the North American editor for the Journal of Feline Medicine and Surgery.

In "real life", she shares her home with her husband Jim, misses her adult children, loves to cook, garden, and is allowed to serve three cats: Nimitz, Jules and Harvey.