We’re Horse People Too
Hello from us
At Full Circle Equine, we believe exceptional veterinary care begins with relationships, with horses, their people, and the teams who support them.
We are an ambulatory equine veterinary practice serving southern Ontario, founded by three veterinary colleagues and friends: Dr. Tovah Caldwell, Dr. Samantha Molson, and Dr. Marisa Markey. After practicing together for years, we came to appreciate how well our different strengths, interests, and approaches complemented one another. Full Circle Equine was created from that shared vision: to build a practice where collaboration, personalized care, and a genuine commitment to our clients and their horses are at the centre of everything we do.
We truly believe that our team is stronger together. One day, you may call on one of us for a lameness evaluation or performance consultation, while another may be the right fit for an on farm surgery, dental procedure, or preventative care appointment. By working together and drawing on each veterinarian’s unique expertise, we are able to provide thoughtful and comprehensive care tailored to each individual horse.
Our goal is to support you and your horse wherever your journey takes you, whether that means enjoying a long, healthy life in the field, competing at the highest levels of sport, or anything in between. Every horse has different needs, and every horse-human partnership has different goals. We are here to listen, collaborate, and help you achieve them.
We invite you to explore our website to learn more about our team, our approach to care, and the services we offer. We look forward to getting to know you and your horse.
OUR VETERINARIANS
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Doctor of Veterinary Medicine
Marisa enjoys all aspects of equine medicine and has a special interest in horse behaviour and mental wellbeing, dentistry, veterinary spinal manipulation therapy, and field surgeries.
Marisa grew up in Burlington, Ontario and was hooked on horses from a young age. She started riding arabian show horses and her show career took her all over Ontario, the Northeastern USA, and out to Canadian Nationals in Saskatchewan. Looking back, she knows her love of ground work and horse behaviour science started with those arabian horses. She attended the University of Guelph gaining a Bachelor of Science, Animal Biology in 2008. Shortly after graduating she worked as a veterinary assistant at a busy equine practice and fell in love with equine veterinary medicine. Marisa then attended the Ontario Veterinary College, graduating in 2015. After graduation she completed a busy and incredible one year internship at Moore Equine in Calgary, Alberta, and stayed for another year as an associate veterinarian. Marisa then came home to practice in Ontario and be closer to family. That same year she married a wonderful man who has supported her through this entire crazy journey. Through her years of practice Marisa has grown to love all aspects of primary equine care, with special passion for veterinary spinal manipulation therapy, geriatric care, dentistry, field surgeries, and equine behaviour. In 2021 Marisa gave birth to a beautiful baby girl in the middle of the pandemic, completing their family. In 2023 Marisa started to apply her continuing education in fear-based behaviours in horses, as well as the fear free approach to equine veterinary medicine, to help her patients overcome phobias and fear responses.
Marisa is a Fear Free certified equine practitioner and works to make veterinary visits a good experience for every horse.
When not working, Marisa can be found being Mom, spending time with her family and wonderful rescue dog, and spending as much time outdoors as possible.
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Fear Free Certification - 2023
Fear Based Behaviours in Horses (IAABC) - 2020
Veterinary Chiropractic Learning Centre - 2019
Dental Extractions VetPD course - 2018
Moore Equine/University of Calgary combined internship - 2015-2016
Ontario Veterinary College - 2011-2015
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Doctor of Veterinary Medicine
Sam grew up in Toronto and fell completely in love with horses during her first riding camp. From there she started weekly riding lessons and joined her local pony club where she developed a strong interest in caring for horses in addition to riding. She competed her OTTB mare Madison in eventing and was fortunate to spend many years working as a groom for hunter/jumper and dressage riders. Sam always wanted to be a veterinarian and completed her undergraduate degree in Animal Biology at the University of Guelph followed by her veterinary degree at the Ontario Veterinary College, graduating in 2015. Following graduation, Sam completed an internship at Mid-Atlantic Equine Medical Center in New Jersey where she was able to hone her skills in all aspects of equine practice. She then returned home to Ontario and joined a large ambulatory practice where she was able to further develop her interests in sports medicine and diagnostic imaging. Sam also completed her certification in veterinary acupuncture from the Chi Institute in 2022 and has greatly enjoyed incorporating this modality into her practice. Sam is an FEI treating veterinarian and is completing courses with International Society of Equine Locomotor Pathology (ISELP) to work towards certification. Her main practice interests include diagnostic imaging, lameness and poor performance evaluations but Sam truly enjoys all aspects of equine practice.
While not working, Sam enjoys hiking with her rescue dog Billie, hot yoga and spending time with her wife Jordan. She also hopes to return to eventing again one day!
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ISELP Fetlock, Carpus, Metacarpus Module- 2024
Certification of Veterinary Acupuncture, Chi Institute- 2022
ISELP Stifle and Thigh Module- 2020
ISELP Pelvis Module- 2019
Mid Atlantic Equine Medical Center - 2015-2016
Ontario Veterinary College - 2011-2015
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Doctor of Veterinary Medicine
Tovah grew up the typical horse crazy little girl. Mucking stalls on weekends in exchange for riding lessons and spending weekends at horse shows. This love for horses started early and eventually led her to the Atlantic Veterinary College where she graduated in 2009. After graduation, Tovah completed an internship at Littleton Equine Medical Center and thereafter spent several years in equine practice in Southern Ontario working alongside Dr. Samantha Molson and Dr. Marisa Markey. In 2022, she moved to Calgary for a teaching role at the University of Calgary School of Veterinary Medicine. Realizing she desperately missed full time practice and missed her colleagues even more, Tovah returned to Ontario in 2025 to join forces with Dr. Molson and Dr. Markey to create Full Circle Equine Veterinary Services.
Tovah enjoys all aspects of equine practice and general care, but has a special interest in sport horse medicine, particularly lameness, performance issues, and understanding how spinal pain (back/neck) affects behaviour and performance. She is certified in both veterinary spinal manipulation therapy and medical acupuncture, and uses these therapies to complement her medical treatment plans. Tovah loves the variety that ambulatory practice provides and also enjoys dentistry, medical work ups, wellness and urgent care. She thrives when working with horse owners to create unique treatment plans tailored to the individual goals of the horse and rider.
Tovah cares deeply about creating a sustainable equine practice for veterinarians, technicians, support staff and clients. She completed a Masters degree in Leadership at the University of Guelph in 2020, studying how mindfulness can support career longevity and wellbeing for equine veterinarians This led her to become a certified Mindfulness Based Stress Reduction facilitator which she offers to support the veterinary community. She has a love for this profession and is so excited to be a part of Full Circle Equine.
When not working you can find Tovah enjoying the local hiking trails with her partner, taking in a hot yoga class, or working out at a ridiculously early hour.
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FEI Official Veterinarian Course - 2024
Equine Instructor at the Veterinary Chiropractic Learning Center - 2016 to Present
Vet PD Advanced Dental Extractions - 2024
Masters in Organizational Leadership - 2020
CuraCore Veterinary Medical Acupuncture - 2016
FEI Treating Veterinarian - 2015 - present
Veterinary Chiropractic Learning Center - 2015
Numerous advanced diagnostic imaging courses 2010 - present
Littleton Equine Medical Center internship - 2009-2010
Atlantic Veterinary College 2005-2009
OUR TEAM
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Equine Veterinary Technician
Sue grew up with a love for horses, dogs, and farm animals. Each one had a paw or hoof in leading her towards a career working with the animals.
Sue graduated with honours from the Veterinary Technician Program at Seneca College in 1994. Fresh out of college, she started her career at the Ontario Veterinary College in the Large Animal Department until her retirement in January 2026.
Sue feels extremely blessed to be able to continue to help support the Veterinary Community as an Equine Veterinary Technician.
Outside of work, Sue enjoys spending her time with her dog Piper, and her horse Desi.
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Office Manager
Jenna has loved horses ever since she can remember. This love for horses lead her to complete her undergraduate degree in Equine Management at the University of Guelph which ignited her passion for equine education. Inspired to learn more, she recently completed her Masters in Education at Wilfrid Laurier University.
Outside of work, Jenna likes to spend time with her dog Murphy relaxing at the cottage. She also loves to go trail riding with her horse Coda.
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Vet Assistant
Stefan’s love for horses goes way back, all the way to his childhood in Bermuda where he grew up. That passion never really faded, bringing him to Ontario, Canada, to learn the ins and outs of equine care and management at the University of Guelph, Ridgetown Campus. On top of his studies, Stefan has been quite active in the riding world, regularly competing the silver circuit in Ontario with his horse, Simon.
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Vet Assistant
Alexis’ passion for horses began at a young age, competing in the hunter/jumper circuit and growing up immersed in the equestrian world. She pursued her love for equine care at the University of Guelph, earning a Bachelor of Bio-Resource Management in Equine Care and Management in 2019.
With a strong interest in equine health, she also obtained a certification in Pulsed Electromagnetic Field Therapy (PEMF). Outside of work, Alexis enjoys spending time with her two dogs, Lulu and Wellesley, and relaxing at the cottage.
The Joy of Veterinary Medicine
“ While you’re here, we want to talk about the profession that we love. Veterinary medicine is in crisis, especially large animal and equine medicine. Fewer and fewer students are choosing equine and large animal, and even fewer stay in this field for more than 5 years after veterinary school. In building this clinic, one of our goals is to build a practice that we can work in for our whole career, and model that to other veterinarians.
There are so many innovative ways that equine vets are making changes for the better within their profession. We are excited to implement some of those new strategies to help us keep the joy in our careers. We have all been doing this for a long time now and the one thing that we know for sure is that there will always be ups, downs, coffee, cookies, and chocolate. We hope that if you come on this ride with us that you’re ready for all of that and more. Horses don’t follow the textbook, after all.”