Our Story
Veterinary Specialist Partners (VSP) is a board certified specialty veterinary hospital founded in 2018 by Dr. Grace Clark, DVM, DACVIM, and Dr. Scott Rizzo, DVM, DACVIM (SAIM), MBA.
Drs. Clark and Rizzo are two board certified veterinary internal medicine specialists who set out to bring advanced, hospital level specialty care to Kentucky and Southern Indiana without losing the independence and personal attention of an independently owned practice.
VSP operates in Louisville, Kentucky, which offers emergency and urgent care every day until 10 PM plus specialty services including endoscopy, interventional radiology, CT imaging, I-131 therapy, laser lithotripsy, ureteral stenting and feeding tube placement, and in Evansville, Indiana, which currently offers internal medicine, oncology (including chemotherapy), cardiology, medical neurology and ultrasound by appointment. Our new Evansville hospital at 1120 Professional Blvd opens in early December 2026 with emergency and urgent care, CT and endoscopy (rhinoscopy, cystoscopy, otoscopy and GI). As Kentucky's only I-131 treatment provider, VSP gives primary care veterinarians a single specialty partner for the complex medical, urgent, and interventional cases that go beyond general practice.
Board certification in veterinary internal medicine is earned only after a multiyear residency and rigorous examination process. Drs. Clark and Rizzo are among fewer than 3,800 ACVIM board certified diplomates worldwide across all six recognized specialties, and among a limited number practicing in the Louisville and Southern Indiana regions. Their leadership drives VSP's collaborative model, combining specialty internal medicine and cancer care, with emergency and urgent care coming to our new Evansville hospital in December. Everything we do is built to support, not replace, the primary care veterinarians who refer us.
Whether you're navigating a complex diagnosis or facing an urgent situation, our team is here to help you move forward with clarity, confidence, and compassion. We can help. Learn more about Dr. Clark and Dr. Rizzo, or see what we treat and how we work with your primary care veterinarian.What Makes VSP
Different
Veterinary Specialist Partners is one of the region’s top centers for advanced veterinary care, home to the largest veterinary cancer center in Kentucky and the state’s only iodine (I-131) radiation therapy service. Our urgent and specialty services are directly supported by board-certified specialists, allowing for faster diagnoses, more effective treatments, and better outcomes for pets who need us most.
One Team. One Goal. Healthier Pets.
At Veterinary Specialist Partners, every patient benefits from a unified team approach. Our specialists, urgent care doctors, and support staff share one goal: restoring your pet’s health with efficiency, compassion, and expert care. With open communication and shared expertise across services, we ensure no detail is missed and every pet receives the continuity of care they deserve.
Advanced Minimally
Invasive Treatments
At VSP, Dr. Clark and Dr. Rizzo offer advanced procedures that help pets heal with less pain, fewer risks, and quicker recovery. These minimally invasive options—like endoscopy, bladder stone removal (ex. PCCL), urethral stenting, and treatments for parathyroid conditions—allow us to treat complex health problems in a gentler, safer way for your pet.
Clear Communication &
Personalized Support
We’re committed to strong, transparent communication with both pet parents and referring veterinarians. Our team provides clear updates throughout your pet’s care, with medical records emailed within 24 hours of each visit. Referring DVMs also have access to our Shareville portal for real-time case updates, ensuring seamless collaboration every step of the way.