EMERGENCY/CRITICAL CARE
CRITICAL CARE/EMERGENCY CENTER


Our Services
Your primary care veterinarian can treat most health problems and handle routine emergencies, but certain situations may require the assistance of a doctor who has had more specialized, intensive training in emergent animal care. Our staff has three board certified specialists in emergency and critical care veterinary medicine that lead a team of emergency doctors with specialty trained technicians.
MEET OUR DOCTORS

BOARD CERTIFICATION
American College of Veterinary Emergency and Critical Care
VETERINARY COLLEGE
University of Missouri
INTERNSHIP
Animal Emergency Center in Glendale, Wisconsin
RESIDENCY
University of Missouri
ADVANCED DEGREE
Master of Science: University of Missouri
Professional Experience
Dr. Greer spent five years as an assistant professor of biology at Union College in Lincoln, Nebraska and private practitioner before completing her internship.
Rebecca J. Greer
DVM, MS Diplomate, ACVECC
A Diplomate of the American College of Veterinary Emergency and Critical Care, Dr. Greer has extensive experience in, but not limited to, the stabilization of severe traumas, intoxications, mechanical ventilation and pain management. As a criticalist, her interests include emergency ultrasound techniques, sepsis and postoperative care.
Dr. Greer is a native Missourian but her family traveled internationally extensively during her
childhood. She returned to Missouri to complete high school and then graduated from Union College in Lincoln, NE. After receiving her Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine, Dr. Greer returned to Lincoln accepting a position as an assistant professor of biology at Union College. During the summers, she worked full time in a mixed animal private practice in Missouri and during the school year, part time in a small animal practice in Lincoln. After five years of teaching and working in private practice, Dr. Greer took an internship at the Animal Emergency Center in Glendale, WI. She returned to the University of Missouri College of Veterinary Medicine to complete her residency in emergency and critical care, concurrently earning a Master of Science degree.
When she is off-duty, Dr. Greer enjoys traveling, hiking and spending time with her husband and two daughters.

BOARD CERTIFICATION
American College of Veterinary Emergency and Critical Care
VETERINARY COLLEGE
University of Missouri
RESIDENCY
University of Missouri
Michael H. Karagiannis
DVM, Diplomate ACVECC
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. As a critical care specialist he has particular interest in sepsis and advanced respiratory disease requiring mechanical ventilation.
Dr. Karagiannis received his Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine in 1998. He began his veterinary career gaining valuable experience in Saint Louis as both an animal emergency and a general practice veterinarian. With the desire to advance his education and training, Dr. Karagiannis completed his residency at the University of Missouri College of Veterinary Medicine in 2006.
Dr. Karagiannis leads the emergency and critical care team and, as such, has mentored three residents here at VSS. He is an adjunct professor for the University of Missouri College of Veterinary Medicine, assisting in the training of veterinary students. Dr. Karagiannis is a native Saint Louis spending any free time with his wife and two sons.

Board Certification
American College of Veterinary Emergency and Critical Care
VETERINARY COLLEGE
University of Illinois
INTERNSHIP
Animal Emergency and Referral Center in Northbrook, Illinois
RESIDENCY
Veterinary Specialty Services in Manchester, Missouri
Professional Experience
Dr. Koors spent two years at an emergency practice in St. Louis before completing an internship.
Timothy Koors
DVM, Diplomate ACVECC
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. His professional interests include trauma, sepsis, and cardiovascular emergencies.
Dr. Koors received his Doctor of Veterinary Medicine from the University of Illinois College of Veterinary Medicine in 2005. He moved to Saint Louis after graduation and began his career as an emergency doctor gaining valuable experience at a local emergency clinic. In 2008, Dr. Koors
accepted a one year rotating internship in small animal medicine and surgery at Animal Emergency and Referral Center in Northbrook, Illinois. He then moved back to Saint Louis and commenced a three year residency in emergency and critical care here at Veterinary Specialty Services. After successful completion of his residency, Dr. Koors remained on staff at VSS to provide the highest level of care to the most critical patients in the Saint Louis area.
When not at work, Dr. Koors enjoys spending time with his wife (who is also a veterinarian), three kids, and Labrador retriever. You may find him attending a Cardinals game, or traveling the world in search of the perfect beach or bottle of wine.

Board Certification
American College of Veterinary Emergency and Critical Care
Veterinary College
University of Illinois
Internship
Department of Defense Military Working Dog Veterinary Service, Lackland AFB
Critical Care Specialty Internship
North Carolina State University
Residency
North Carolina State University
Erin Mays
DVM, DIPLOMATE ACVECC
Dr. Mays is a Diplomate of the American College of Veterinary Emergency and Critical Care and has special clinical interest and research experience in trauma resuscitation, transfusion therapy, and disorders of coagulation. Following graduation from University of Illinois in 2008, she was commissioned as an Officer in the U.S. Army Veterinary Corps. She completed a year-long internship at the Military Working Dog Veterinary Service, a specialty hospital exclusively for government-owned animals. The following year she was deployed to Iraq where she served as the Officer in charge of the sole working dog medical and surgical hospital in Iraq. Following her return, she spent time as Commander of a deployable veterinary unit before transitioning to U.S. Army Special Operations Command as a Civil Affairs Veterinarian. She deployed to Afghanistan during this assignment where she worked with government officials and rural Afghan farmers, veterinarians and midwives to develop sustainable agriculture and public health programs.
After over five years in the Army, Dr. Mays returned to academia to pursue her passion for critical care medicine at NC State University. She has ongoing research in trauma hemostasis and development of novel transfusion products and strategies. She serves as a consultant for a biotechnology company dedicated to blood cell stabilization for both humans and animals. Additional clinical and research interests include implementation of ICU quality improvement programs, geriatric medicine, and delivery of humane and ethical critical care.
Dr. Mays enjoys laughing and hanging out with her husband and extended family, running, cycling, and pursuing sustainable agriculture on their homestead. She feels blessed to be able to care for people and their pets in times of greatest need. Dr. Mays continues her military service as a veterinarian in the Army Reserves.

Board Certification
American College of Veterinary Emergency and Critical Care
VETERINARY COLLEGE
University of Missouri
RESIDENCY
Veterinary Specialty Services in Manchester, Missouri
Robyn Sherman
DVM, Diplomate ACVECC
Dr. Sherman joined VSS on May 20, 2013 as an emergency and critical care veterinarian.
A native Saint Louisan, Dr. Sherman graduated from Westminster Christian Academy. She received her Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine in 2013. After graduation, Dr. Sherman began her career as an emergency doctor gaining valuable experience at Veterinary Specialty Services. With a desire to advance her medical skills and a dedication to the human-animal bond, Dr. Sherman choose VSS for her three year residency in emergency and critical care because of their commitment to and advance of the team approach for exceptional veterinary care.
Dr. Sherman and her husband currently have two hound dogs and a cat who runs the show.

VETERINARY COLLEGE
UNIVERSITY OF ILLINOIS
INTERNSHIP
VCA AURORA
Dr. Blake Sutton
DVM
Dr. Blake Sutton grew up in Everett, Washington. Dr. Sutton received his bachelors of science from the University of Notre Dame and his doctorate from the University of Illinois College of Veterinary Medicine. He completed a one-year small animal rotating internship at VCA Aurora outside of Chicago and plans to pursue a residency in emergency and critical care.
Dr. Sutton shares his home with his wife, a pediatric resident as St. Louis Children’s Hospital, and his cat Eevee. He enjoys cooking and traveling in his free time.

VETERINARY COLLEGE
University of Missouri
Professional Experience
Dr. Broyles has worked as a veterinarian in the emergency field in Saint Louis since 2000.
Shannon Broyles
DVM
Dr. Broyles joined VSS on April 4, 2009 as an emergency and critical care veterinarian driven by the desire to work collaboratively with specialists in order to optimize patient care. She has an undying compassion and her commitment to provide excellent care for her patients is of highest priority.
Dr. Broyles received her Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine. In veterinary school, Dr. Broyles took both emergency and surgical electives during her clinical rotations. She also used her off-site rotations to observe emergency surgeries and medical cases at a local emergency facility. With over seventeen years of emergency experience, she is thankful for the opportunity at VSS to work with such dedicated doctors and technicians and is proud to be able to provide emergency care after hours.
Dr. Broyles’ husband, Damon, is a primary care physician in town. In their free time, they enjoy hiking, sailing, camping and rock climbing with their three children. Dr. Broyles is also involved in church activities, is a Girl Scout leader, room mom and chauffeur for multiple sports and music activities. At home they have two dogs, three cats (all rescues) and twelve chickens.

VETERINARY COLLEGE
University of Missouri
Kristen Dellacamera
DVM

VETERINARY COLLEGE
University of Missouri
Professional Experience
Dr. Eisele spent five years in private practice in both Charlotte, North Carolina and Saint Louis before joining VSS.
Jennifer M. Eisele
DVM
Dr. Jennifer Eisele graduated cum laude from the University of Missouri College of Veterinary Medicine in 2006. After completing her doctoral degree, she went into private practice for 5.5 years before joining Veterinary Specialty Services Emergency Center in 2012. She loves bringing the highest quality of care to her patients and having the support of the doctors and staff at VSS. She finds that emergency care can be very complicated but rewarding as the collaborative approach employed at VSS provides the patient with the best care.
Dr. Eisele’s husband, Dr. Howard Eisele, is also a veterinarian who currently works in private practice. They have 2 children and love outdoor activities such as horseback riding and travelling in their free time. They currently enjoy the company of two dogs, one cat and six horses.

VETERINARY COLLEGE
University of Misssouri
Sarah Zufall
DVM
Dr. Zufall joined VSS on June 5, 2015 as an emergency and critical care veterinarian. Her professional areas of interest include surgery, trauma and intoxications.
Dr. Zufall earned her Bachelor of Science in pre-medicine from the University of Dayton. She then received her Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine. After graduation, Dr. Zufall began her career as an emergency doctor at VSS.
Dr. Zufall was born and raised in Ballwin, Missouri. She and her husband recently welcomed a baby boy. They have an eleven year old poodle mix named Josie and a one year old cat named Chloe. In her free time, Dr. Zufall enjoys spending time with her twin sister and family, restoring furniture and watching Friends.

VETERINARY COLLEGE
St. Matthew’s University
David Nichols
DVM
Dr. Nichols received his Doctor of Veterinary Medicine from St. Matthew’s University and completed his clinical rotation at North Carolina State University. During his time at St. Matthew’s, he volunteered with the Grand Cayman Department of Environment assisting in monitoring, cataloging, and releasing green sea turtles.
After completing his doctorate, he moved back home to St. Louis in 2011 where he joined VSS as an emergency doctor and has been practicing with us ever since.
Outside of emergency medicine, Dr. Nichols enjoys scuba diving, nature and wildlife photography, backpacking through national parks, and spending time at home with his dogs Sashi, Cookie, and Jack, and cat Tinkerbell.

VETERINARY COLLEGE
University Of Missouri
Beverly Thompson
DVM
Dr. Beverly Thompson has always been a science and animal lover. After she received her Bachelor’s degree, she earned a Post Baccalaureate in Zoos and Aquaria at Shedd Aquarium prior to deciding to return to academia for her doctorate degree. She studied Veterinary Medicine at University of Missouri. During her time there, she was a part of several research projects working with criticalists in the ICU. She dabbled in general practice following graduation, but her desire and love for emergency medicine brought her to VSS.
During her time away from work, she enjoys traveling, tennis, hiking and exploring new places. She has two dogs who are very demanding of her time, Oreo Francis and Gemma Marie.

VETERINARY COLLEGE
University of Illinois
Katrina Black
DVM
Dr. Katrina Black earned her Doctor of Veterinary Medicine from the University of Illinois College of Veterinary Medicine. In addition to her academic and clinical work at the University of Illinois, Dr. Black gained valuable surgical experience at the University of Illinois Veterinary Teaching Hospital. Also, Dr. Black has travelled internationally to provide animal care and surgical services in under-served areas.
Prior to attending veterinary medicine school, Dr.Black earned her Bachelor of Science in animal sciences with a minor in chemistry. During her undergraduate education, Dr. Black worked at the University of Illinois Dairy Research Farm and also earned a biology research fellowship.
Outside of work, Dr. Black enjoys exploring St. Louis parks and trails with her two dogs, Clark and Kenyon.

VETERINARY COLLEGE
University of Illinois
Kelly Joseph
DVM
Dr. Kelly Joseph received her veterinary degree from the University of Illinois. She has had a passion for emergency medicine since the beginning of her veterinary career and has a special interest in shelter medicine and animal rescue.
Before becoming an Illini, Dr. Joseph attended Iowa State University for three years where she received a Bachelor’s degree in Biology.
In her free time, Dr. Joseph enjoys gardening, reading, exploring new places with her dogs, and trail running. She lives with her husband and two black lab mixes, Lotus and Dahlia.

Veterinary College
University of Missouri
Melinda Bowen
DVM
Dr. Bowen joined VSS on August 15,
Dr. Bowen received her Doctor of Veterinary Medicine from the University of Missouri College of Veterinary Medicine in 2013. She began her veterinary career at a busy private practice in Brentwood, Missouri, where she gained three years of valuable general practice experience. Dr. Bowen brought to VSS her a passion for educating pet parents and providing the gold standard of medical care in a team-oriented environment.
Prior to beginning her veterinary studies, Dr. Bowen worked as an administrative assistant for the University of Missouri-Saint Louis, and she has over ten years of professional experience outside of veterinary medicine. Growing up in rural Missouri, Dr. Bowen was always surrounded by the family’s menagerie of animals, which included their pet cats and dogs, in addition to the cows, pigs, and chickens raised for food. She even helped care for an occasional orphaned squirrel and raccoon. While working at the University of Missouri, Dr. Bowen attended evening classes to complete her undergraduate studies. In 2008, she graduated summa cum laude with a Bachelor of Science in Biology and was accepted into veterinary school the following year.
Dr. Bowen currently resides in Maplewood with her two cats, a hound mix and an energetic Labrador retriever mix, all rescues. In her free

Veterinary College
University of Missouri College of Veterinary Medicine
Abby Whiting
DVM
Dr. Abby Whiting earned her bachelor’s from Saint Louis University and her DVM from the University of Missouri College of Veterinary Medicine.
She joined Veterinary Specialty Services in March of 2018 after 7 years in private practice. Her areas of special interest
She was the previous recipient of the Student Surgery Award for excellence in small animal surgery, The Mary T. Wernert Award for exhibiting a high standard of patient care, and the Virginia Busch scholarship for integrity, leadership, and character.
She spends her days with her two Boston Terriers, “Piglet” (an albino) and “Bean”. When not at work she enjoys hiking, kayaking, cooking, and traveling.

Veterinary College
University of Missouri College of Veterinary Medicine
BRIA Ozment
Dr. Bria Ozment earned her Doctorate from the University of Missouri College of Veterinary Medicine. Dr. Ozment grew to love emergency medicine as well as surgery, taking elective courses and completing externships in emergency and critical care as well as shelter medicine.
Dr. Ozment received her Bachelor of Science in Zoology from Southern Illinois University. She received a research grant for work on a mouse model of neurodegenerative disease during her undergraduate education.
In her free time, Dr. Ozment enjoys spending time outdoors, gardening, and trying new restaurants in the St. Louis area with her Fiancé. They live with a menagerie of rescue pets including four hounds, three felines, and a hedgehog.

Veterinary College
University of Illinois at Urbana-Champaign
Elizabeth Fesser
Dr. Elizabeth Fesser grew up in central Illinois. She received a Bachelor of Science degree and a Bachelor of Fine Arts degree from Washington University in St. Louis. She went on to earn her Doctor of Veterinary Medicine degree from the University of Illinois at Urbana-Champaign in 2010.
Dr. Fesser started her professional career as an emergency veterinarian in the St. Louis area. She then changed to general practice for multiple years. In fall of 2017, she started at VSS as an emergency veterinarian.
Dr. Fesser lives with her husband, Martin, and her black lab, Blink. In her free time, she enjoys gardening and teaching herself how to do various home improvement projects.

Veterinary College
Tufts University
Internship
Veterinary Specialists and Emergency Services
Meghan Seymour
DVM
Dr. Meghan Seymour grew up in Jupiter, Florida. She received her Bachelor of Science in Biology from the University of Central Florida where she also served as the Captain of the Western Equestrian team, competing in Western Horsemanship and Reining all over the state of Florida. She then went on to earn her Doctor of Veterinary Medicine degree from Tufts Cummings School of Veterinary Medicine in Grafton, Massachusetts. Following graduation, she completed a 1-year rotating internship at Veterinary Specialists and Emergency Services in Rochester, NY prior to joining the VSS team.
Dr. Seymours’ husband, Dustin, is an active duty United States Coastguardsman stationed in St. Louis. They have 2 rescue pups, a lab mix named Cuda and a terrier mix named Fisher Price. In her free time, Dr. Seymour enjoys gardening, hiking, and spending time with her family.
APPOINTMENTS & OFFICE HOURS
APPOINTMENTS
Patient visits are by appointment only or can be seen in association with an emergency or critical care appointment.
For an appointment: (636) 227-9400.
After hours/weekend emergencies: (636) 227-6100.
APPOINTMENTS
Patient visits are by appointment only or can be seen in association with an emergency or critical care appointment.
For an appointment: (636) 227-9400.
After hours/weekend emergencies: (636) 227-6100.
REFERRAL PRACTICE Hours
Monday - Friday: 9:00am - 5:00pm
Emergency Hours
Weekdays, Weekends, & Holidays: 24 Hours