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Our Veterinarians

Dr. Erin Black is an emergency medicine veterinarian.
Erin Black
DVM
Emergency Medicine
Erin Black
DVM
Emergency Medicine
Servicing Locations
Dr. Erin Black enjoys stabilizing patients in hypovolemic shock and diagnosing and performing initial treatment for immune-mediated anemia and thrombocytopenia. She is also interested in soft tissue surgical emergencies, including splenectomy, dystocia, gastric dilatation volvulus (GDV) and gastrointestinal (GI) foreign bodies.
  • Doctor of Veterinary Medicine, Texas A&M University, College Station
  • Bachelor of Science, Biomedical Science, Texas A&M University, College Station
Outside of work, Dr. Black likes teaching all forms of Pilates, cycling medium distances, cooking flavorful, health-conscious foods and spending time outdoors with her family. She has a laid-back, quirky Lab/hound mix, Leeloo Dallas.
Dr. Valerie Case is board certified in small animal internal medicine.
Valerie Case
DVM, DACVIM (SAIM)
Internal Medicine
Valerie Case
DVM, DACVIM (SAIM)
Board Certified in Veterinary Small Animal Internal Medicine
Internal Medicine
Servicing Locations
Dr. Valerie Case has learned new techniques, such as tracheal and urethral stenting and pulmonary ultrasound, to best serve her patients. She enjoys working with the cardiology and oncology services to provide comprehensive care.

Her professional interests include feline medicine, cardiology, respiratory disease, diagnostic imaging, and interventional radiology. She enjoys guiding clients toward the best diagnostic and treatment decisions for their pets.
  • Diplomate, American College of Veterinary Internal Medicine (Small Animal Internal Medicine)
  • Residency, Small Animal Internal Medicine, California Animal Hospital, Los Angeles
  • Internship, Small Animal Medicine & Surgery, California Animal Hospital, Los Angeles
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Science, Zoology, University of Oklahoma, Norman
Outside of work, Dr. Case enjoys attending spin and yoga classes, studying wine, trying new restaurants, and watching football with family and friends. She shares her home with her husband and two “very silly felines,” Marshawn and Sarah Thomas.
Dr. Julie Ducote is board certified in veterinary neurology.
Julie Ducote
DVM, DACVIM (Neurology), MA
Neurology
Julie Ducote
DVM, DACVIM (Neurology), MA
Board Certified in Veterinary Neurology
Neurology
Servicing Locations
Dr. Julie Ducote has special interest in leadership development in the veterinary world. As an experienced veterinary neurologist, she is passionate about mentoring the next generation of neurology clinicians and providing valuable training for interns and residents.
  • Master of Arts, Organizational Leadership, Gonzaga University, Spokane WA
  • Diplomate, American College of Veterinary Internal Medicine (Neurology)
  • Residency, Neurology/Neurosurgery, Texas A&M University, College Station
  • Internship, Small Animal Medicine & Surgery, Michigan State University, East Lansing
  • Doctor of Veterinary Medicine, Texas A&M University, College Station
  • Bachelor of Science, Veterinary Science, Texas A&M University, College Station
In her spare time, Dr. Ducote likes hiking, reading, meditating and spending time in nature. She has a wonderful spouse and two cats who fill her life with joy.
Dr. Keven Gulikers is board certified in small animal internal medicine.
Keven Gulikers
DVM, MS, DACVIM (SAIM)
Internal Medicine
Keven Gulikers
DVM, MS, DACVIM (SAIM)
Board Certified in Veterinary Small Animal Internal Medicine
Internal Medicine
Servicing Locations
Dr. Keven Gulikers’ professional interests include gastroenteritis, liver disease, endocrinology, diagnostic procedures (such as endoscopy and laparoscopy) and tracheal stent placement for dogs with collapsing trachea.
  • Diplomate, American College of Veterinary Internal Medicine (Small Animal Internal Medicine)
  • Residency, Small Animal Internal Medicine, Virginia Polytechnic Institute and State University, Blacksburg
  • Master of Science, Veterinary Medical Sciences, Virginia Polytechnic Institute and State University, Blacksburg
  • Internship, Small Animal Medicine & Surgery, Coral Springs Animal Hospital, FL
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Science, Entomology and Biology, Oklahoma State University, Stillwater
In his spare time, Dr. Gulikers enjoys playing soccer, traveling, scuba diving and spending time with his wife and daughter.
Dr. Sonya Hansen is board certified in veterinary emergency & critical care.
Sonya Hansen
DVM, MS, DACVECC
Critical Care
Sonya Hansen
DVM, MS, DACVECC
Board Certified in Veterinary Emergency & Critical Care
Critical Care
Servicing Locations
Dr. Sonya Hansen has a strong interest in educating others through hands-on teaching and lectures. She particularly enjoys treating trauma, acute kidney injuries, and endocrine emergencies, as well as tailoring fluid therapy for her patients’ individual needs.
  • Diplomate, American College of Veterinary Emergency and Critical Care
  • Residency, Emergency & Critical Care, Auburn University, AL
  • Master of Science, Veterinary Biomedical Sciences, Auburn University, AL
  • Internship, Emergency & Critical Care, Auburn University, AL
  • Internship, Small Animal Medicine & Surgery, Michigan State University, East Lansing
  • Doctor of Veterinary Medicine, University of Minnesota, St. Paul
  • Bachelor of Arts, Anthropology, Grinnell College, IA
Outside of work, Dr. Hansen enjoys spending time with her husband, daughter, two dogs, and two cats. She also likes exercising, traveling, and trying new breweries and restaurants.
Photo coming soon.
Megan Harbison
DVM
Emergency Medicine
Megan Harbison
DVM
Emergency Medicine
Servicing Locations
diabetic ketoacidosis, heat trauma and emergency surgery.
  • Internship, Small Animal Medicine & Surgery, VCA Emergency Animal Hospital and Referral Center, San Diego CA
  • Doctor of Veterinary Medicine, Louisiana State University, Baton Rouge
  • Bachelor of Science, Ecology and Evolutionary Biology, Tulane University, New Orleans LA
Outside of work, Dr. Harbison enjoys gardening, watching films, reading and taking road trips with her wife. She has two cats, Oscar and Perry, and a ball python, Sir Hiss.
Dr. Barbara Lindsay is a veterinarian in our neurology and neurosurgery service.
Barbara Lindsay
BVM&S, BVSc
Neurology, Neurosurgery
Barbara Lindsay
BVM&S, BVSc
Neurology, Neurosurgery
Servicing Locations
Dr. Barbara Lindsay has a strong interest in training the next generation of veterinarians. She works closely with other specialty clinicians and referring veterinarians to provide comprehensive treatment plans for her patients. Her special interests include neuro-oncology cases and meningitis treatment.
  • Residency, Neurology & Neurosurgery, Center for Veterinary Specialty and Emergency Care, Lewisville TX
  • Internship, Neurology, Center for Veterinary Specialty and Emergency Care, Lewisville TX
  • Internship, Neurology, VCA Animal Specialty Center, Yonkers NY
  • Internship, Surgery, Animal Referral Hospital, Sydney, Australia
  • Internship, Small Animal Medicine & Surgery, Veterinary Specialist Services, Brisbane, Australia
  • Bachelor of Science, Veterinary Medicine & Surgery, Murdoch University, Perth, Australia
  • Bachelor of Science, Veterinary Biology, Murdoch University, Perth, Australia
Dr. Lindsay enjoys running, practicing barre Pilates, drinking espresso and spending time with her cat. She grew up on a sheep farm in Australia, and while she misses her sheep dogs, she loves exploring the “Lone Star State” and meeting local people.
Dr. Maggie Mezzles is a veterinarian in our surgery service. She is holding a gray cat.
Maggie Mezzles
DVM
Surgery
Maggie Mezzles
DVM
Surgery
Servicing Locations
Dr. Maggie Mezzles has a strong interest in soft tissue surgery, wound management and surgical oncology.
  • Residency, Small Animal Surgery, Summit Veterinary Referral Center, Tacoma, WA
  • Internship, Small Animal Surgery, Las Vegas Veterinary Specialty Center, NV
  • Internship, Small Animal Surgery, Animal Specialty and Emergency Center, Los Angeles, CA
  • Internship, Small Animal Medicine & Surgery, Oklahoma State University, Stillwater
  • Clinical Rotation, Small Animal Medicine & Surgery, Texas A&M, College Station
  • Doctor of Veterinary Medicine, Ross University, St. Kitts, West Indies
  • Bachelor of Science, Animal Science, Texas A&M, College Station
Outside of work, Dr. Mezzles enjoys music, painting, quilting, traveling, reading, theater and anything relating to sports or water. She and her husband have two cats.
Dr. Victoria Schwertner is an emergency medicine veterinarian.
Victoria Schwertner
VMD
Emergency Medicine
Victoria Schwertner
VMD
Emergency Medicine
Servicing Locations
As an emergency clinician, Dr. Victoria Schwertner is particularly interested in trauma.
  • Doctor of Veterinary Medicine, University of Pennsylvania, Philadelphia
  • Bachelor of Science, Biology, Florida Atlantic University, Boca Raton
In her spare time, Dr. Schwertner enjoys horseback riding, hiking and traveling. She has a dog, Missy, a cat, CiCi, and a horse, Darryl.
Dr. Teresa Seyfert is board certified in veterinary internal medicine.
Teresa Seyfert
DVM, DACVIM (SAIM)
Internal Medicine
Teresa Seyfert
DVM, DACVIM (SAIM)
Board Certified in Small Animal Internal Medicine
Internal Medicine
Servicing Locations
Dr. Teresa Seyfert has extensive experience performing abdominal ultrasound tests, and she continues to advance her training in ultrasound technique and sampling. She has also completed additional training in laparoscopic liver biopsy, tracheal stenting, and echocardiogram.

Her professional interests include gastrointestinal (GI) disorders, hematologic and autoimmune disease, and endocrine disease.
  • Diplomate, American College of Veterinary Internal Medicine (Small Animal Internal Medicine)
  • Residency, Small Animal Internal Medicine, Oklahoma State University, Stillwater
  • Internship, Small Animal Internal Medicine, Oklahoma State University, Stillwater
  • Internship, Small Animal Medicine & Surgery, The Ohio State University, Columbus
  • Doctor of Veterinary Medicine, Kansas State University, Manhattan
  • Bachelor of Science, Animal Science & Industry, Kansas State University, Manhattan
Outside of work, Dr. Seyfert enjoys watching movies, walking, attending college football games, and visiting amusement parks with her husband and two daughters. She has two dogs and a hamster.