Internal Medicine Specialist

Dr. Claire Johnston

DVM (Practice Limited to Internal Medicine)

My Commitment To You

To our referring partner veterinarians, my commitments to you all are; to be a resource, support system and ear/voice whenever needed. I value the partnership and relationship we create while caring for our patients.
To our pet owners, my commitments to you are vast. I vow to communicate, be patient and care for your animals as if they are my own. I vow to continue to build my education and update my knowledge based on new literature and the ever-changing knowledge of medicine when treating and caring for your family members.
– Dr. Claire Johnston


Dr. Claire Johnston grew up in a small town in Northern California and initially developed a love for mixed animal medicine during her undergraduate education. Advancing through veterinary school, small animal medicine and specifically Internal Medicine became her passion.  Dr. Johnston loves the relationships she builds with her patients and owners and her primary focus is on improving their daily quality of life. Dr. Johnston enjoys numerous aspects of internal medicine with a special interest in gastrointestinal disease and nutrition along with respiratory impairments and immune diseases. At home, Dr. Johnston has two cats (Tortellini and Alfredo) which keep her busy with their mischief.

Dr. Johnston is thrilled to be living in the Pacific Northwest and has developed a love for paddleboarding, hiking and backpacking. When not working or outdoors, you can find Dr. Johnston spinning on her stationary bike at home, while rocking out and dancing with the music!

Dr. Johnston is ecstatic to join the community/family at Boundary Bay, coming from a busy privately owned hospital in Seattle, WA. She looks forward to practicing at an independently owned hospital that allows her to focus on patient care and quality medicine first.


  • Veterinary School: Western University of Health Sciences
  • Internship: VCA, San Francisco (VCA SFVS)
  • Residency: 2 years at UC Davis and completed the final year at Iowa State University
  • In the process of finalizing/publishing her research project on the effects of anemia on the heart

To Referring Vets

Request an Internal Medicine Consult

Come visit us or ask us to visit you!


Pet Owners:


Contact us to inquire about our experience with a particular procedure or any other question that will help you make an informed decision.

Request a Vet to Vet Consult

Our specialists see themselves as extensions of your team and that means you can count on them like teammates. If you would like to speak to a specialist about a challenging case please phone our reception and ask for a doctor by name or by department.

(604) 514-8383

Come Visit Us

Boundary Bay is an extension of your team and teammates should get to know one another. We invite you to arrange a time to tour our facility and get to know some of the specialists. Fill in the form below to get the process started.

    We’ll Visit You

    We’re committed to helping your clinic succeed. If possible, we’ll come visit you in person to establish a relationship and/or to arrange CE sessions for your staff (lunch ‘n learns, etc). Fill in the form below to start a conversation about what your clinic needs.

      Ask Us a Question

      We’ll do everything in our power to help you make an informed decision!

        We are now located in Surrey.
        Please take all emergencies and appointments directly to our new address at 10436 173rd St., Surrey