Meet the team

Dr. Geoff purchased the practice from the founder and long-time owner of Lock One Animal Hospital, Dr. Sam Thompson, in 2021. He was born and raised in the GTA but moved to the beautiful Niagara Region upon graduation from the Ontario Veterinary College. Dr. Geoff’s favourite aspect of veterinary medicine is getting to meet new pets and people and celebrating the happiest moments, as well as helping through the toughest moments in our pets’ lives.

Outside of work, Dr. Geoff enjoys spending as much time as possible exploring the outdoors with his partner and son, as well as his best friend, Bindi, the golden retriever. He is also tolerated by two cats, Garfield and Lettuce.

Dr. Rianne is a 2017 graduate of the Ontario Veterinary College and has been practicing veterinary medicine in Toronto for the past four years. After recently moving to St. Catharines from Toronto, she is very excited to join the Lock One Animal Hospital team.

In the past, she has been involved in community outreach in many different cities around Ontario. Dr. Rianne is passionate about all aspects of small animal medicine but takes a particular interest in oncology and internal medicine.

Dr. Rianne has a cat named Franklin, who considers himself to be a dog. He loves all people, plays fetch, and can even sit on command. When she is not trying new recipes at home in the kitchen, she enjoys participating in many different sports year-round. You can most definitely find her on a golf course when the weather is nice, in the gym, or out for a hike with friends. She has recently been enjoying her weekends exploring the many wineries the Niagara region is famous for.

Dr. Amanda was born and raised in Mississauga. After graduating from the Ontario Veterinary College in 2016, she moved to the Niagara Region, where she practiced at another local clinic for six years before joining the Lock One team in 2022.

Dr. Amanda believes in a preventive approach to medicine and enjoys working with pet owners to ensure that all her patients remain healthy and happy. She has a special interest in internal medicine and surgery.

When not working, Dr. Amanda enjoys spending time relaxing with her family. Ever since she was very young, her family has included German Shepherds, including her current special girl, Lexi. Additionally, her pet family now includes two cats, Eleanor and Carl. Dr. Amanda and her husband enjoy travelling, hiking, and cycling. She is also an avid reader.

Marie’s curly-tailed brats, her Basenjis Indy, and Nike keep her busy whenever she’s not at work. Indy is a senior now with lots of needs, and the youngster Nike has boundless energy and particularly enjoys chasing squirrels and the sighthound sport of lure coursing. Marie’s other hobby is photography, although the two are closely linked since her favourite subjects are her dogs!

Sarah has always had a passion for animals, leading to her career in veterinary medicine. She graduated from the veterinary technician program at Sheridan College in 2012 and continuously strives to expand her knowledge. She prides herself on treating each animal with love and respect while providing them with the high-quality care that they need.

In her free time, Sarah enjoys spending time with her two daughters, her husband, and their golden retriever, Bentley. Their favourite place to be is either at the cottage or the gym. Sarah is currently on maternity leave after the birth of her second daughter, but we are all looking forward to her return later in 2023.

Christiana has loved animals for as long as they can remember. They have a passion for practicing Fear Free medicine and strive to make every visit to the clinic a positive one. They moved from the small town of Tillsonburg to St. Catharines in 2016 to begin a career in veterinary medicine. They worked as a Veterinary Assistant for six years while attending school to become a Veterinary Technician. They graduated in 2022 and soon after obtained their RVT license.

In their spare time, Christiana has their hands full with all of their furry critters at home. Including five cats, a bunny, four guinea pigs, three rats, and the newest addition, Summer, the beagle! When they aren’t taking care of their zoo, they enjoy hiking, boxing, playing the piano, and exploring the many wineries and breweries the Niagara region has to offer!

Hannah has always loved animals and feels great empathy towards them. She strives to help pets and their owners have as positive of an experience as possible when they come to Lock One and takes pride in being part of a team that values thoughtful and respectful care.

Hannah is very interested in dog training and animal behaviour and after years of experience apprenticing and studying dog training she started her own dog training business, Fischer’s Family Dogs. In her free time she loves hiking with her husband and their dog May, travelling, reading, and spending quality time with family and friends.

In her free time, Sarah likes to do yoga, hiking, kayaking, photography, and spending time with her two cats, Mimi and Peep Peeps.

Jade was born and raised in north-end St. Catharines. She has worked extensively with local wildlife organizations, providing medical care to injured and orphaned animals, and advocating for conservation efforts. Jade’s commitment to wildlife welfare is matched by a deep compassion for pets, ensuring that all animals receive the best treatment and care possible.

Jade loves to spend her free time with her fiance, and their two cats, Moon and Bean, at their family cottage on Gould Lake. You can find her enjoying swimming, boating, wakeboarding and watching the sunset next to a campfire.