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Dr. John McDermott joined GVS in 1988 and became a practice owner in 1991.  He is a graduate of the University of Florida with a Master's Degree in Reproductive Physiology and from the School of Veterinary Medicine.  His expertise includes reproduction, developmental orthopedic diseases, dentistry, production management, quality milk and dairy farm profit enhancement.

Dr. Sarah Jensen joined GVS in 2007 as a veterinary associate and became a practice owner in 2011. She obtained a bachelors in Animal Science and a Doctorate in Veterinary Medicine from Colorado State University. She has a particular interest in equine lameness and continues to develop new techniques in the pursuit of lameness evaluation and treatment. Dr. Jensen is Medical Acupuncture for Veterinarians (MAV) certified to provide both acupuncture and chiropractic treatments for large animals. She completed training under the International Veterinary Medical Association, Colorado State University, and the Colorado Veterinary Medical Association in the Spring of 2009.

Dr. Jason Weinstein joined GVS in the Fall of 2011 as an associate veterinarian.  Originally from upstate New York, he attended the University of Vermont, focusing his studies on dairy science.  Following college, Jason earned both a Master's degree in Ruminant Nutrition and Physiology and a Doctor of Veterinary Medicine degree from the University of California, Davis. His main interests include dairy cattle nutrition, surgery and medicine, and sheep and goat herd health. Jason is an active member of the American Association of Bovine Practitioners, American Association of Small Ruminant Practitioners and American Dairy Science Association.

Dr. Averi Simpson joined GVS in June of 2017 as an associate veterinarian. She obtained a bachelors in Animal Science from Berry College in Rome, GA and her doctorate of veterinary medicine from the University of Tennessee in Knoxville. She has a particulate interest in equine and bovine reproduction, equine dentistry, and large animal chiropractic and acupuncture. 


Rose Smith - Accounts Payable, Drop Ship Program Coordinator, Business Manager

Melissa Wilber - Accounts Receivable, Customer Care, Laboratory Coordinator

Traci Cleveland - Technician, Lab & Clinic Support Specialist

Brenda Ryan - Customer Care Specialist