About Us
Founded in 1993, Great Brook Veterinary Clinic has and will always strive to provide the very best veterinary care possible for pets and their families in Antrim, NH.
We only accept walk-ins and we invite you to call our office at 603-588-3460. Our veterinarian and staff look forward to meeting you!
The Difference at Great Brook Veterinary Clinic
We treat your entire family and accommodate your budget, lifestyle, and needs. We only recommend veterinary services and products that promote the health and safety of your entire family. Our goal is to educate our clients to help them make the best-informed health care choices for their animal companions.
When our doors are open, your animals are always welcome. No appointments necessary!
Our Veterinarians
Nikolas Kokal, BVMS - Owner/Veterinarian
Kristina Hewitt, BVMS - Owner/Veterinarian
Dr. Kokal and Dr. Hewitt both graduated from the University of Glasgow in 2016. They are passionate about providing high-quality, personalized veterinary care to the pets of Antrim and surrounding areas. As the new owners of Great Brook Veterinary Clinic, they are deeply committed to maintaining a family-owned and operated clinic that prioritizes both the well-being of pets and the peace of mind of their owners.
Dr. Hewitt brings a wealth of expertise in cardiology, ultrasound, internal medicine, and advanced surgery. She completed her internship training at Piper-Olsen Memorial Hospital, where she honed her skills in surgery, internal medicine, and emergency/critical care, further solidifying her dedication to advanced care.
Dr. Kokal has a strong interest in general practice, wellness care, dentistry and general surgery. He loves helping pets thrive at every stage of life, his compassionate approach to wellness emphasizes keeping pets healthy and happy for years to come. Dr. Kokal has also proudly served as a Captain in the United States Air Force for the Massachusetts Air National Guard.
Together, Dr. Kokal and Dr. Hewitt are dedicated to offering high-quality veterinary care at a fair price, in contrast to the growing trend of corporate-owned clinics that can lead to increased costs and a more impersonal experience. They are proud to run a privately owned practice where quality is prioritized over profits.
When they’re not at the clinic, Dr. Kokal and Dr. Hewitt are the busy parents of their three young boys. As a family, they enjoy spending time on their family farm and are excited to be part of the Antrim community.
Great Brook and Dr. Nik, as well as the other staff members were amazing. Dixie felt comfortable with the staff and was able to get a thorough exam. This is not always the case if she is not comfortable. As soon as they walked into the exam room, both the doctor and the nurse sat on the ground and patted Dixie (which she loved), being very strategic about checking the things they needed to while keeping Dixie calm. I left feeling confident with the care plan. Dixie will be returning for any follow up/future visits. THANK YOU SO MUCH!
Leah H.
Have questions for our veterinarian? Get in touch with us! We’ll reach out to you shortly.
Antrim, NH 03440
9:00 AM–12:00 PM
3:00 PM–6:00 PM
Tuesday, Wednesday, Saturday
9:00 AM–12:00 PM
Thursday & Sunday
Closed