Dr. Justus Tremblay, DMD

Dr. Tremblay was born and raised in Niagara Falls and is excited to be back in his hometown to care for the community he knows and loves. He graduated from St. Paul High School in 2014, earned an Honours Bachelor of Science in Medical Sciences from Brock University in 2019, and completed his Doctor of Dental Medicine (DMD) at the University of Saskatchewan in 2025.

Outside of dentistry, Dr. Tremblay enjoys playing hockey and soccer, catching a good game, and spending time at the cottage fishing. He also loves golfing and exploring the city with his wife, Ally. Together, they share their home with their beautiful Shih Tzu, Luna.

Dr. Tremblay is passionate about creating a comfortable and positive dental experience for his patients, and is proud to be providing quality care to families across the Niagara region.

  • Family Dentistry

    The McCullough Group has proudly provided dentistry for families in the Niagara area since 1952 and new patients are always welcome. More...

  • Implants

    Dental implants are substitutes for teeth and are today’s best alternative to your natural teeth. They are specialized titanium fixtures placed into the jaw underneath the gum that biologically bond to living bone. More...

  • Whitening

    As well as providing teeth whitening at The McCullough Group we offer a more comprehensive smile makeover service. More...

  • Dentures

    Are you looking for a dentist with a full-service denture repair lab? McCullough Dental Group can take care of your denture needs right inside of our offices. More...

  • Dentistry Asleep

    If you’re one of the numerous patients who feel pain or anxiety during dentistry, Dentistry Asleep can allow you to receive dental care in complete comfort. More...