Meet Our Team

Dr. Pacevicius founded Halton Hills Veterinary Clinic (HHVC). A graduate of the University of Guelph, he has been a veterinarian for over 40 years. His love for animals and the outdoors extends into his hobbies. When not at the clinic you will find him outside; fishing, skiing, gardening or boating. 

Dr. Aviva Rothman-Wielinga joined the Halton Hills Veterinary Clinic family in 1995. A graduate of the University of Guelph, she considers it a privilege to be participating in the care of our clients' furry family members. It is Aviva’s goal to make sure that the human-animal bond is protected so that our clients know that their pets are well cared for.

JoAnne Patterson has been with Halton Hills Veterinary for almost 40 years.  She assumes the role of Clinic manager and Chief Technician.  Her high energy, passion and care for the pets are only surpassed by her exemplary customer service skills.  JoAnne is a Certified Registered Veterinary Technician.