Mariana Crumley, DVM, MS, DACVAA
Chief Veterinary OfficerSpecialty Medicine Advisor — Small and Large Animal Anesthesia
Behind every PetVet care center is a team of experienced veterinarians committed to delivering the ultimate care experience. They bring clinical guidance, collaboration, and real-world experience to support exceptional patient care.

Our Medical Leadership Team represents general practice, specialty, emergency, and equine medicine, bringing diverse clinical perspectives together to support care center teams across the PetVet network.
Whether mentoring doctors, advising on complex cases, developing clinical programs, or helping hospitals navigate new challenges, they serve as trusted partners to care teams across PetVet.
Because they remain closely connected to the realities of veterinary practice, they understand the opportunities and challenges our care teams experience every day. That firsthand experience helps shape medical standards, clinical initiatives, professional development, and the resources our hospitals need to provide outstanding patient care.
Each Regional Medical Director is supported by Regional Medical Advisors who work closely with their assigned care centers. These relationships deepen understanding of each hospital’s team, culture, and opportunities, enabling more personalized coaching and extending the reach of the Medical Leadership Team.
Above all, they believe the best medical decisions come from listening, collaborating, and putting patients, clients, and care teams first.
Meet the experienced veterinarians who work alongside leaders and care teams to strengthen medical excellence, support clinical decision-making, and advance veterinary medicine throughout our network.
Chief Veterinary OfficerSpecialty Medicine Advisor — Small and Large Animal Anesthesia
Regional Medical DirectorSoutheast (General Practice)
Regional Medical DirectorNortheast (General Practice)
Regional Medical DirectorSpecialty Medicine Advisor — Small Animal Emergency and Critical Care
Regional Medical DirectorCentral (General Practice)
Regional Medical DirectorPacific Northwest (General Practice)
Regional Medical DirectorSouthwest (General Practice)
Regional Medical DirectorEquine
Working alongside the Medical Leadership Team, our Specialty Medicine Board brings together board-certified specialists across multiple disciplines. The Board provides clinical guidance, promotes evidence-based medicine, and serves as a resource for doctors networkwide.
The Board helps develop medical standards, reviews and updates clinical protocols, supports continuing education, and offers expertise on complex cases. It advises our emergency and specialty care centers on medical equipment selection, clinical workflow optimization, and the assessment of new services.
By fostering collaboration between general practitioners and specialists, the Board promotes greater consistency in medical care, supports professional growth, and helps ensure patients receive the highest standard of care at every location.
Chief Veterinary OfficerSpecialty Medicine Advisor — Small and Large Animal Anesthesia
Regional Medical DirectorSpecialty Medicine Advisor — Small Animal Emergency and Critical Care
Recruiting, Retention, and Training AdvisorSpecialty Medicine Advisor — Small Animal Internal Medicine
Specialty Medicine Advisor — Small Animal Oncology
Specialty Medicine Advisor — Small Animal Surgery
Medical excellence at PetVet Care Centers is driven by veterinarians who understand the work because they've lived it. Together, our Medical Leadership Team and Specialty Medical Advisory Board bring diverse expertise, practical experience, and a shared commitment to advancing veterinary medicine through collaboration, continuous learning, and evidence-based care.