Dr. Heather Hannah


A few years after I was born, my parents bought a beef cattle farm. At age five, I had a “veterinary epiphany”. I watched as a visiting veterinarian placed his arm inside a cow. From that, he could predict future events and conditions. Wow! This was the job for me! Since that time, my arms and hands have been many places as I practice the traditional skills of palpation. Fancy technology is necessary and good, but a skilled hand on your pet can tell me a lot about its health, and is a lot cheaper.

Dr. Marinella Scalzo

Associate Veterinarian

Growing up, visiting my nonno (grandfather) was extra special. I could play with his cats. Mom’s allergies kept them out of our house. But we did have dogs to enrich our lives. I can’t remember a time when animals were not the great joy of my life. And now, as a veterinary surgeon, I can use my healing skills to keep that joyous bond alive between human and pet. I love the work I do and what it means for others.

Dr. Nancy Miller

Associate Veterinarian

I have been a veterinarian for 34 years, having graduated from Ontario Vet College in 1988. My early clinical experience was heavily concentrated in emergency medicine. For the last 10 years, I’ve been a general practitioner at St Clair Vet facilities. As well as being a veterinarian, I am also a professional photographer, with expertise in dog portrait and dog sports photography. I am the proud mom of Holly, a 4 year old Whippet, as well as a rag doll cat named Walter.



Some of you may know me as that old guy who does no work around the place. That wouldn’t be inaccurate, because St. Clair Veterinary is an all-lady-run operation for everything involving medical treatment of your pets. You go, girls! I’m usually hiding in the basement, working on paperwork or bookkeeping or repairs to items. When I am upstairs to work on a computer or other device, I’m the guy who offers to haul food or carriers to clients’ cars. I spent my early years on a dairy farm, so I know animals, big and small. Some type of creature has always been in my life, and I believe that’s the way it should be.



I am the Manager here, and have been part of this amazing St. Clair Vet family since 1995.

I work in reception, where I spend time with our clients and their loved ones. Over the years, I have had the pleasure to also see their children grow up and become pet parents!

Outside the office, I juggle a very busy household being a mother of 3 amazing boys, as well as being a grandmother. I am also the proud owner of a loving snuggle bug American Bully and a feisty Chihuahua whose bond is truly amazing.


Assistant Manager

While some of you already know me, others may not, so let me introduce myself.

My name is Cassandra and I’ve been a team member with SCV since 2001. I started off as an Animal Care Attendant, then got transferred to Receptionist. I am now the Assistant Manager.

I do have a mad passion for Forensic Science and hold a degree with high honours predominately in the fields of Blood Splatter Analysis, Ballistics and Psychology of the Criminal Mind. But it is working close to animals that truly makes my soul sing. I am most happy when surrounded by these wonderful beings we call our “Fur Family”.

I am also a pet Mama to one adorable black cat Draconis, whom I named after a binary star system in the Constellation Draco (which translates to Dragon)

During my time away from work, and if a clear night sky permits me, I practice as an Amateur Astronomer where I enjoy observing and imaging celestial objects using my telescope and camera.


Registered Veterinary Technician

I am a Registered Veterinary Technologist and an Elite Free Fear-certified professional. St. Clair Veterinary has been my home since high school co-op days! All my life, I have always wanted to work with animals. Interestingly, being unable to have many pets while growing up has solidified my desire to be in an animal-based career! Every day I am grateful and happy to be fulfilling my childhood dream by taking care of furry companions such as yours. I am roommates with a toothless, domestic short-haired cat named Zucchini. In my off hours, I enjoy baking, puzzle solving, and playing fetch with Zucchini.



RVT/Assistant Manager

I am a Registered Veterinary Technician, Assistant Manager, and work reception here at St Clair Veterinary. I am also Fear Free Level 2 certified. My favorite part of the job is getting to know all the wonderful clients and their adorable pets. I have always been a huge animal lover, and have had pets my whole life. Even as a young child, I knew that I wanted to work with animals. I have now been in the veterinary field for over 10 years. I currently have a sweet, snuggly kitty named Gracie. When I’m not at work, you can usually find me at home with a good book, or spending time with my loved ones.


Veterinary Technician

I graduated the Northern College Veterinary Technician program in 2005. I am also Fear Free Level 2 certified. I’ve been working as the Head Veterinary Technician at St Clair Veterinary since 2006. My policy is to treat your fur babies as I treat my own, or how I would like to be treated. I’m always available for your pet or if you need an ear/shoulder.

My home is a menagerie. It’s heaven! Both my two-legged children are upsetting this mama by growing up way too fast. Among my adoptees are Jaeger, a feisty timid outdoorsy Artemis, and my big goof, Rookie. The girls at St Clair Veterinary convinced my son to adopt Tweet Tweet, the love bird from the hospital. My flock of hens share their house with a cuddly bunny named Kiko. Favorite activities include spending time with family (swimming, skating, and camping), and watching my children play sports like hockey. I also volunteer to coach my children’s baseball league. St Clair Veterinary is not just a hospital. We are a team and a family that works hard for our furry friends!


Animal Care Attendant

I graduated from the Animal Care Program at Durham College in 2016, and shortly after, joined St. Clair Veterinary as an Animal Care Attendant. I am Fear Free Level 3 certified, and am always learning something new. I like to use a gentle, compassionate touch to help our team tend to the needs of our furry companion patients. I’m an upbeat person, and I always try to bring sunshine to everyone’s day. In my off time, I enjoy learning new recipes, reading, and attending live music.


Animal Care Attendant

I’ve been working at St. Clair Vets as an Animal Care Attendant for a little bit over a year now. I am currently working part time while also attending Seneca for veterinary assisting.

One of my favorite parts of this job is getting to see all the different animals that walk through our clinic doors! I was never allowed to own pets so this job let’s me take care of all types of animals and give them all the hugs and scratches they want.

When I’m not at work or attending classes, I’ll be at home relaxing with my family and friends.



Your pet’s will recognize me as the “Treat Lady” – bribing them for tail wags and snuggles. I’ve always had an admiration for animals of all kinds, but a very special place in my heart for the large breed canines. More dog to love! I’ve called St. Clair West my home for the past 13 years, living in “The Woods”, where my husband and I have raised our two daughters.  In 2020, I convinced my family to welcome a Great Dane puppy, Boston, into our lives and I can honestly say, he is my biggest Baby.  The large ones always are!  I can’t imagine a world without our furry companions.

When I’m not in clinic, I enjoy spending time with my family and friends, watching Formula 1 racing, and hiking with my big guy, Boston.  If you see us around the neighborhood, come say hi! I feel incredibly grateful to be part of such an awesome, all star all-female team.  I look forward to helping you and your animal at your next visit!



I have lived at St Clair Vets for a few years now. I was dropped off at the front door early one morning with my two young kittens. They were both adopted out, but everyone grew to love me so I made it my home. I like to hang out in reception most days, looking for lots of love and conning everyone into giving me extra treats!