Our vets.

Holley “Jo” Eike

DVM

Emergency Medicine
On the job

As an emergency clinician, Dr. Holley “Jo” Eike enjoys working on new diabetes cases and the client conversations relating to this condition. She also finds wound management and laceration repair cases particularly gratifying.

Education
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Animal Science, Oklahoma Panhandle State University, Goodwell
Off duty

Dr. Eike’s hobbies include fitness and longbow archery. She has three cats, Smokey, Thetford and Teton, and a ball python, Britney Spears.

Nicole Griffith

DVM

Emergency Medicine
Education
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Science, Veterinary Medical Technology, Wilson College, Chambersburg, PA

Kaylee Hass

MS, DVM

Emergency Medicine
Education
  • Doctor of Veterinary Medicine, University of Arizona, Tucson
  • Master of Science, Microbiology - Cell and Molecular Biology, Oklahoma State University, Stillwater
  • Bachelor of Science, Animal Science, Oklahoma State University, Stillwater

Aubrey Hnatusko

DVM, DACVECC
Board Certified in Veterinary Emergency & Critical Care

Critical Care
On the job

The fast pace of emergency and critical care medicine, as well as the diversity and complexity of the cases, are Dr. Aubrey Hnatusko’s favorite aspects of the field. Her clinical interests include:

  • Anaphylaxis
  • Sepsis
  • Diabetic ketoacidosis
  • Hypoadrenocorticism
  • Fluid therapy

She is the only full-time practicing criticalist in Oklahoma.

Education
  • Diplomate, American College of Veterinary Emergency & Critical Care
  • Residency, Emergency & Critical Care, BluePearl Pet Hospital, Tampa, FL
  • Internship, Small Animal Medicine & Surgery, BluePearl Pet Hospital, Northfield, IL
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Science, Biochemistry and Molecular Biology, Oklahoma State University, Stillwater
Off duty

Dr. Hnatusko loves hiking, running 5K and obsessing over her West Highland White Terrier – Kenzie and her German Shorthaired Pointer puppy – Gunner. She is working on building her mini-ranch, and also loves reading, drinking wine, whiskey tasting, listening to Red Dirt country music and cheering on the OSU Cowboys!

Brandon Murray

DVM, CVA

Emergency Medicine
On the job

Dr. Brandon Murray’s clinical interests include emergency medicine, fracture repair and soft tissue surgery. He has practiced emergency medicine since 2024 and has advanced training in fracture repair and axial pattern flaps.

Education
  • Certified Veterinary Acupuncturist, Chi Institute, Reddick, FL
  • Doctor of Veterinary Medicine, Ross University, St. Kitts & Nevis, West Indies
Off duty

Born and raised in Oklahoma, Dr. Murray enjoys spending time with his wife, their two children and their five dogs. He likes working on home improvement projects and creating Star Wars replicas.

Kassidy Treanor-Roettger

DVM, CVA, CPEV

Emergency Medicine
On the job

Dr. Kassidy Treanor-Roettger’s clinical interests and experience include triage and stabilization, catheter placement (including to unblock male cats or “blocked toms”), fluid therapy and transfusion monitoring, feeding tube placement, anesthesia monitoring and CPR. She also has experience with emergency surgeries like GDV/bloat, splenectomy (spleen removal), pyometra (infected uterus), foreign object removal, as well as treating urinary blockages, bladder stones, breathing complications, poisoning, seizures, heat stroke and diabetic emergencies.

In addition to emergency medicine, she enjoys holistic and integrative medicine as well as acupuncture. Dr. Treanor-Roettger is Fear Free certified.

Education
  • Certified Peaceful Euthanasia Veterinarian
  • Certified Veterinary Acupuncturist, Chi University, Reddick, FL
  • Doctor of Veterinary Medicine, Oklahoma State University, Stillwater
  • Bachelor of Science, Biochemistry and Molecular Biology, Oklahoma State University, Stillwater
Off duty

Outside of the hospital, Dr. Treanor-Roettger enjoys spending time with her friends and family on the farm, riding horses, going to the lake, camping, movies and a good comedy series. She and her husband share their home with a domestic shorthair cat named Pebbles and two dogs, a miniature Australian shepherd named Flynn and a golden retriever named Yoshi.

Cecilia Winthrop

MS, DVM

Surgery
On the job

Dr. Cecilia Winthrop is particularly interested in orthopedic procedures like TPLOs and FHOs (femoral head ostectomies). She also enjoys soft tissue procedures such as splenectomy, foreign body removal, amputations, mass removals and GDV (bloat) treatment.

Education
  • Residency, Small Animal Surgery, BluePearl Pet Hospital, Southfield, MI
  • Internship, Small Animal Surgery, Dallas Veterinary Surgical Center, TX
  • Internship, Small Animal Medicine & Surgery, BluePearl Pet Hospital, Southfield, MI
  • Clinical Rotation, University of Florida, Gainesville
  • Doctor of Veterinary Medicine, St. George’s University, Grenada, West Indies
  • Master of Arts, Liberal Studies, Creighton University, Omaha, NE
  • Bachelor of Science, Animal Science, Colorado State University, Fort Collins
Off duty

Dr. Winthrop is an arts and sailing enthusiast. She can be found spending time with family and friends or planning her next trip abroad.