Our Veterinarians




  • Dr. Rachel Shanahan

    Rachel grew up in the Stouffville area before attending the University of Guelph and graduating in 2007 from Ontario Veterinary College. She worked in a mixed animal practice in the Kawartha Lakes area for a year before coming to work here at Port Perry Veterinary Services. In 2012, Rachel joined on as a practice owner. Rachel's professional interests include equine reproduction, lameness, and chiropractic. She also enjoys emergency cases involving horses, cattle and small ruminants. For fun, Rachel enjoys playing hockey, baseball and horseback riding.




  • Dr. Allison Doherty

    Allison grew up locally in Brooklin. Before vet school, Allison spent her time working with racehorses and competing with her mare, Teddy. She graduated in 2011 from the Ontario Veterinary College in Guelph. She has worked at PPVS since graduation, and joined on as an owner in 2016. Allison enjoys working with all large animals, but she particularly enjoys equine dentistry, primary health care and emergency work. Allison lives in Port Perry with her family and a collection of animals. Besides horseback riding, Allison enjoys gardening, baking, snowboarding and playing hockey in her free time.




  • Dr. Erin Branigan

    Erin grew up in Cambridge, ON as well as overseas in Indonesia. She graduated from the Ontario Veterinary College with a Doctor of Veterinary Medicine in 2015. Prior to veterinary school, Erin evented up to the preliminary level competing in both the US and Canada. Since graduating, Erin has spent a year completing an internship at an equine clinic and referral centre in Wisconsin where she has further developed her passion for sports medicine and lameness. When not working with horses, she enjoys spending time with friends and family, getting outdoors, playing sports of all kinds and travelling.

  • Dr. Brittany Greenwood



    Dr. Brittany Greenwood

    Dr. Brittany Greenwood joined the Port Perry Veterinary team in 2019, bringing her experience and passion for quality medicine along with her. Brittany is an Ontario native, born and raised in the Greater Toronto Area. She is an honours graduate of the University of Guelph and Ontario Veterinary College, where she received the R. A. Curtis Award for excellence and passion for bovine medicine in 2015. Her experience includes exclusive large animal veterinary service in eastern Ontario and the Golden Horseshoe, and has a passion for health management of both cattle and small ruminant herds, reproduction medicine, and individualized equine medicine. Brittany’s ongoing position as a meat inspector provides us with added experience in pathology, welfare, and infectious disease. Brittany has also previously worked at small ruminant and dairy farms in the Guelph area, researched ketosis, bovine reproduction, and poultry health at the University of Guelph, as well as calf health at various farms in southwestern Ontario. Brittany lives with her husband, Chris, who is also a veterinarian. Together, they have settled in the Brooklin area with their menagerie of animals. Outside of work, Brittany loves spending time with her family and friends and enjoys exercise, travelling, dance, and expressing her creativity through art.

  • Dr. Kathleen Taylor

    Dr. Kathleen Taylor has loved working with animals for as long as she can remember. She grew up riding and working with western performance horses, specifically reining. During university, Kathleen spent time honing her equine reproduction skills at several large breeding farms in New Zealand, Maryland and Ontario. She also worked hard to gain experience in the beef and dairy sector, working on a large cow-calf ranch in Saskatchewan and spending time in England at several large dairy practices with The University of Nottingham. After graduating from the Ontario Veterinary College, Kathleen pursued additional training in equine dentistry to help improve her ability to provide high quality care to horses on farm.

    Kathleen has a strong interest in equine breeding and dentistry and strives to decrease the stress of a veterinary visit for animals and their owners. Outside of work, Kathleen enjoys horseback riding, canoe tripping and cooking. She lives locally with her husband and cat, Mr. Kipling, who is named after their favourite British candy maker!