Medivet Ashtead

Michael Fassas

Partner

I qualified in 1999 from Aristotle University of Thessaloniki, Greece and completed an internship in small animal surgery and anaesthesia in 2002. I moved to the UK in 2003 to work as a small animal vet for two other practices in Sussex and Surrey, and joined Medivet 24 Hour Sutton in August 2008. I became a Partner there in August 2017, and Partner at Medivet Ashtead in July 2026. Over the years I’ve gained knowledge and expertise in all aspects of surgery; soft tissue and orthopaedics, radiography, analgesia and rehabilitation following musculoskeletal disorders. I also recently completed a Certificate in Small Animal Surgery.

DVM PGCertSAS MRCVS

Paolo Balocchi

Partner

I graduated from the University of Parma, Italy in 2014. I then completed an internship in Oncology before moving to the UK in 2016. I previously worked in another veterinary practice in Kent before joining Medivet 24 Hour Sutton in 2019. I am working towards the completion of an internal medicine certificate. I have a particular interest in internal medicine, ultrasonography and endoscopy. I became Partner at Medivet 24 Hour Sutton in 2023, and Partner at Medivet Ashtead in July 2026.

DVM GPCert(SAM) MRCVS

Sam Law

Partner

Since I could talk, I’ve been obsessed with animals - from cats, dogs, seals, and even woodlice, I was determined to help them all. I’m not sure my two childhood cats were big fans of my enthusiasm, or being my “patients” at home! I spent my teens volunteering at Wingrave Sutton and spent a year at the clinic gaining experience prior to attending university. I graduated from the University of Nottingham in July 2020 and since then, have developed a keen interest in surgery, emergency medicine, and providing compassionate end of life care. In January 2024 I returned to Medivet 24 Hour Sutton as a vet after spending time in other small animal clinics in Kent and Surrey, and in November 2025 I became a Partner. I also became Partner at Medivet Ashtead in July 2026. I am a self proclaimed mad cat lady, with four rescue cats at home, as well as a very sassy tortoise. I’m also a big dog fan, with two very cheeky Frenchies that keep me busy! In my free time I enjoy keeping fit, crochet, and reading.

BVMedSci BVM BVS MRCVS

Sarah Walford

Head Veterinary Nurse

I have over 25 years' experience as a veterinary nurse although originally qualified as a human nurse. I now love working with the pets and their owners of Ashtead helping the vets provide the best quality veterinary care possible. In my spare time when not caring for 3 bossy cats. Isaac, Caleb and Eli, I can be found crafting and reading.

Isabella Clifton

Practice Manager

My name is Isabella, but everyone knows me as Bella. I began my journey with Medivet in 2018 as a Mobile Veterinary Care Assistant (VCA) and have since worked my way up through several roles, including Student Veterinary Nurse, Practice Coordinator, Registered Veterinary Nurse, and Head Nurse. I joined Medivet Ashtead as a Practice Manager in July 2026. Animals have always been a huge part of my life, and over the years I’ve owned many. I currently have two French Bulldogs, Roddy and Bambi, who are my babies.