Justin Thomason, DVM, DACVIM
Justin Thomason, DVM, DACVIMCardiology Specialist - Stillwater, OK
Dr. Justin D. Thomason received his DVM degree from Oklahoma State University. He completed a small animal internship at the University of Missouri and residency in internal medicine and cardiology at the University of Georgia.
Justin’s professional missions are:  clinical teaching, fear-free veterinary visits, providing excellent clinical service and consultations, and advancement of cardiology utilizing clinical research.  His dedication to these missions have earned him the 3rd Year Veterinary Teaching Award (2014), Pet Tribute Award (2014), Zoetis Veterinary Distinguished Teaching Award (2015), and a net promoter score of 94% compared to the industry average of 77% for clinical cardiology service.


A board certified veterinary cardiologist has advanced training and knowledge of the heart and circulatory systems of your pets.  Focusing on the treatment and diagnosing of heart and lung abnormalities and diseases, a boarded cardiologist can work to help your pets live longer, healthier lives.

Some of the treatment and testing options performed by cardiologists include:

  • Echocardiopraphy
  • Electrocardiography
  • Blood pressure evaluation
  • Holter monitor
  • X-rays
  • Surgery on congenital defects
  • Cardiac catheterization procedures
  • Dilating valves
  • Pacemakers implantation
  • OFA heart registry certification

Some reasons to see a board certified Cardiology Specialist include:

  • heart failure, congestion
  • Heart muscle disease
  • Aging of the heart
  • Breathing Issues
  • Congenital heart defects (sometimes from birth)
  • Abnormal cardiac rhythms
  • Tumors
  • High blood pressure
  • Pulmonary hypertension (high blood pressure in the lungs)