about us

Veterinary Oncology Partners was established by a group of board certified small animal specialists. Our goal is increasing access to cancer care and treatment options from within a general veterinary practice setting. VOP works directly with primary care veterinarians to provide guidance and treatment options for even the most complicated cancer diagnoses.  

Many pet owners find themselves located hours from a veterinary oncologist.  This distance is challenging as many pet owners are unable to travel for repeated appointments.  Safe chemotherapy administration is another challenge in primary care veterinary practices.
​  
Traditionally, veterinarians administering chemotherapy are required to have containment hoods and dedicated, specially-designed, negative pressure treatment rooms in order to be in compliance with safety guidelines. VOP's proprietary consultation and pharmacy fulfillment system allows individually prepared chemotherapy doses to be packaged in a closed delivery system and shipped directly to primary care veterinarians for administration.  

​VOP provides onsite and online staff training to ensure the highest level of safety for every patient and staff member.  Each step of a patient's cancer therapy journey is guided by VOP specialists to ensure the best possible outcome while receiving care in the comfort of the primary care veterinarian's office.

Meet the founders:

M.J. Hamilton, DVM, DACVIM (onc)

Chief Medical Officer
Dr. Hamilton is a board certified veterinary oncologist treating patients in the northeast since 2011. Dr. Hamilton has been commissioned to start multiple oncology departments in the northeast, participate in clinical trials and is asked to lecture frequently. He became the first mobile oncologist in the country and is excited to bring oncology to the general practice setting in a new way.

Erik Mayes, PharmD

Director of Pharmacy
A Kentucky Native, Erik graduated from the University of Kentucky College of Pharmacy an is an owner and operator of Louisville Compounding Pharmacy located in Louisville, KY.  Erik loves being able to work closely with patients and providers to help come up with creative solutions for treatment.  

Dr. Scott Rizzo, DVM, MS, DACVIM

​Chief Executive Officer
Dr. Rizzo is board-certified in small animal internal medicine and has been practicing oncology in the state of Kentucky for last 12 years.   Building veterinary specialty hospital teams and services has been a passion and he is excited to be a part of VOP and its mission to provide specialist guided oncology care to general practice veterinarians all over the country. 

Grace Clark, DVM, DACVIM

Chief Operations Officer
Dr. Clark is a board-certified internal medicine specialist who owns a specialty medicine practice with multiple locations in the Kentucky-Indiana area. She has been offering medical oncology services to these patients for the last 9 years. She is thrilled to be part of a company that facilitates providing the best possible care for oncology patients by working with veterinarians to bridge the gap between general and specialty practice.