Born and raised in Hamilton, NZ, Bart Karalus has deep roots in the community and a lifelong connection to Newstead Vets. He fondly remembers the clinic's humble beginnings in founder Gwyn Verkerk's basement and has been an integral part of its journey ever since. Since taking ownership in 2014, Bart has cultivated exceptional relationships with clients, emphasising the importance of education in animal care.

Bart has a special interest in complex medical and skin cases, brachycephalic breeds and their many problems, and laparoscopic surgery. He is a proficient operator of Newstead's wide array of flexible and rigid endoscopes and enjoys providing less intrusive methods to diagnose and treat your pets. Bart is dedicated to continuously improving his methods and embracing new technologies to provide the best care for pets. He is the only veterinarian in the greater Waikato offering keyhole desexing, a less invasive option that promotes faster recovery times for your pets.

His commitment to the well-being of pets and their families makes him a beloved figure in both the clinic and the local community. Bart's passion for veterinary medicine and his dedication to providing top-notch care ensure that every visit to Newstead Vets is a positive experience for both pets and their owners.

A proud Hamiltonian, Katrina brings over 20 years of veterinary experience to the Newstead Vets team. She has worked in both rural mixed and dedicated small animal practices, always focusing on companion animal care throughout her career.

Highly skilled in both medicine and surgery, Katrina takes pride in working closely with clients to create tailored diagnostic and treatment plans for each individual pet. Her approachable, upbeat nature and clear communication style—combined with her meticulous attention to detail—have quickly made her a favourite among clients and colleagues alike.

Outside of work, Katrina lives on a lifestyle block where she cares for her eight dogs (six New Zealand Heading Dogs and two Terriers), as well as chickens, cattle, and sheep. A passionate competitor in sheep dog trialling, she not only trains and competes with her dogs but also helps organise events and has recently started judging. When she’s not with her dogs, she enjoys spending time with family and friends.

Hailing from Cambridge, Devin pursued her passion for Veterinary Science at Massey University, graduating in 2022. She seamlessly joined the Newstead Vets team, where her love for companion animals shines through, particularly in the realms of medicine and surgery.

Known for her meticulous approach to veterinary care, Devin ensures that every detail is addressed, providing the highest standard of treatment for her furry patients.

Her gentle and caring personality puts both pets and their owners at ease, creating a nurturing environment for all.

Tina is our friendly and efficient receptionist who ensures every client and their pet feels welcome when they visit Newstead Vets.

With her warm personality and excellent organizational skills, she keeps the front desk running smoothly.

Tina is often the first point of contact for clients, handling appointments, answering queries, and providing that crucial first impression of care and professionalism.

As our Head Nurse, Marama brings exceptional leadership and clinical expertise to the Newstead team.

With years of experience in veterinary nursing, she coordinates our nursing staff and ensures the highest standards of patient care.

Marama has a special interest in surgical nursing and anesthesia monitoring, making her an invaluable asset during complex procedures. Her compassionate approach and technical skills help maintain Newstead's reputation for excellence.

Devon is a dedicated veterinary nurse who brings a calm and caring presence to our practice.

With her gentle handling techniques and attention to detail, she excels at making anxious patients feel comfortable during their visits.

Devon has a particular interest in emergency and critical care, continually expanding her knowledge to provide the best nursing care for our patients when they need it most.

Dulcie is a passionate veterinary nurse who brings warmth and expertise to every interaction at Newstead Vets.

Her natural ability to connect with animals and their families creates a comforting environment during what can often be stressful visits.

Rachael is a compassionate veterinary nurse with a talent for connecting with both animals and their owners.

Her technical skills and empathetic nature make her particularly effective in supporting patients through recovery after surgery or illness.

Rachael takes a special interest in nutrition and weight management, helping owners develop appropriate feeding plans for their pets at all life stages.

Charley is an enthusiastic veterinary nurse assistant who provides essential support to our nursing team at Newstead Vets.

She assists with patient care, helps maintain clean and organised treatment areas, and ensures our veterinary nurses have everything they need to provide excellent care.

As our Practice Manager, Stephanie ensures the smooth day-to-day operation of Newstead Veterinary Services.

Her organizational skills, business acumen, and understanding of veterinary practice make her an essential part of our team.

Stephanie coordinates staff scheduling, manages inventory, and handles administrative responsibilities so our clinical team can focus on providing exceptional care to patients.