Meet Our Skilled Veterinarians

A Diplomate of the American College of Veterinary Emergency and Critical Care, Dr. Karagiannis has extensive experience in, but not limited to, the stabilization of severe traumas, intoxications, envenomations, transfusion medicine, cardiac emergencies and acute pancreatitis.

A Diplomate of the American College of Veterinary Surgeons, Dr. Anderson has extensive experience in general soft tissue, oncologic and orthopedic surgery, including total hip replacement, with a special interest in minimally invasive surgical techniques such as laparoscopy and arthroscopy.

Dr. Cletzer is originally from Vermont. She attended the University of New Hampshire for her undergraduate degree, and then attended Cornell University for veterinary school. After graduating veterinary school, she completed her rotating internship at Tufts University.

Dr. Yarnall was born and raised in the St. Louis area. He received his Doctor of Veterinary Medicine degree from the University of Missouri College of Veterinary Medicine.

A Diplomate of the American College of Veterinary Emergency and Critical Care, Dr. Koors has extensive experience in, but not limited to, the stabilization of severe traumas, intoxications, mechanical ventilation and pain management.

Jill Luther is a graduate of Southwest Missouri State University who received her DVM from the University of Missouri.

Dr. Mary Jean Gorse knew at a very early age that she wanted to be a veterinarian; however, she never dreamed that she would build one of the largest veterinary referral and emergency centers in the Midwest. Dr.

Dr. Bonnie E Smith obtained a Bachelor of Science in Biology, as well as her veterinary medical degree, from the University of Missouri-Columbia. She then completed a one year rotating medicine and surgery internship at The Animal Medical Center in New York, New York. Dr.

Dr. Sherman joined VSS on May 20, 2013 as an emergency and critical care veterinarian.

Dr. Coletti joined VSS on January 15, 2009 after being selected for a small animal surgery residency.