Dilliway, Bosley & Walker Ltd

At Dilliway, Bosley & Walker we aim to provide the best in veterinary care for your horses in the Devon and Somerset area. Normally we will visit your stables or premises, but where specialised equipment or treatments or required we have a well equipped facility at Holcome Rogus, near Wellington, Somerset.

Meet The Team.


Graduated from the Royal Veterinary College in 1982 and has been working in Ireland and South East England as an equine vet, with a large degree of this work in the racing industry. In 1989 Ray started a practice in Devon working almost exclusively for a large National Hunt racing yard but now his work load has expanded to a large client base.

Ray has gained considerable experience in all aspects of horse care, but developed particular fields of interest in lameness, tendon treatments, endoscopy and preventative medicine aiming to improve the performance of horses in training.

Ray Dilliway


Graduated from the Royal Veterinary College in 2001 and worked in Devon doing large animal and equine work before taking a job in New Zealand for nearly 4 years doing solely equine work.

James has experience in all aspects of horse care but developing interests are studwork, radiography (X-rays) and dentistry. James is currently chairman of the Association of Racecourse Veterinary Surgeons.

James Bosley


Andrew graduated from Edinburgh University in 1980. He then went on to practice in Lancashire, Scotland (2 years) and Somerset (4 years).

Andrew set up Acorn Veterinary Clinic in 1990 which then developed into Western Counties Equine Hospital. In 2012 Andrew joined to form what is now Dilliway, Bosley & Walker ltd.

Andrew Walker


Anja has worked in Equine practice since graduating from Liverpool University in 1999, both in hospital and ambulatory practice. She enjoys working with all types of horse from Shetlands to competition horses.

Anja's personal interest is in carriage driving and she has been fortunate to be a team vet for the British Carriage Driving team for 6 years. She competes in driving trials with her young Dutch Warmblood as often as she can.

Anja Walker

Alessia Sorrentino DVM MRCVS

Dr Sorrentino graduated from the University of Naples Veterinary School in 2008 and research was a comparison between the reproductive efficiency of using frozen and chilled semen to AI mares considering the influence of several factors. After an Internship in an Equine Practise in North of Italy, she decided to go back to her main field of interest, Equine Reproduction and Neonatal care. Therefore, she moved to Ireland where she spent the breeding season working alongside worldwide renowned specialist in Equine Reproduction with both thoroughbred and sport horses. Since then she has been working in Stud farms and AI/ET Centre in Italy, Jordan and Saudi Arabia and UK where she gained a good experience in equine Embryo Transfer.

She was the stud vet in charge at Pool House Equine Clinic in 2017 before joining Twemlows stud farm in February 2018 where she had a very successful season with amongst scanning up to 80 mares daily, she gained further experience of embryo transfer work: involving the synchronisation of donor and recipient mares and donor mare embryo flushing with subsequent embryo searching and recipient transfer of the embryo.

Alessia joined Dilliway, Bosley & Walker Equine Vets in March 2019 as an ambulatory Vet.

Alissia Sorrentino
Alissia Sorrentino

CLAIR PARNHAM – General Secretary & Stable Manager

Clair joined Dilliway, Bosley & Walker in April 2013. She has worked with horses on & off in all spheres since the age of 10. Predominantly working with racehorses for the last 25 years and now enjoying the R.O.R (retraining of racehorses) showing and challenge series.

James Bosley has however renamed R.O.R as "really old riders". Clair's horse Curlew qualified for Hickstead 2016.

Anja Walker

JENNY SAMPSON – Receptionist

Jenny joined the Practice in June 2018 after supplying holiday cover and having previously worked in Equine Practice on Reception for 16 years prior and now works on a Monday for us combining it with her other job as a Doctors Receptionist.

She has a busy family life with two boys aged 7 and 2 and a farmer partner to cater for.

She enjoyed riding Hunting before the children came along and have taken over the weekends.

When time permits she enjoys Hunting, Point to Points and Netball.

Jenny Sampson

HEATHER GREENSLADE – General Secretary & Nurse RVN & REVN

Trained as a Vet Nurse in 1976 & Equine Veterinary Nurse in 2007, she now combines working at the practise with lecturing at Bicton College. Heather has experience in all equine aspects.

Heathers hobbies include National Hunt racing & walking in the countryside. She has ridden and produced Point to Point winners, helped to produce international Pony Club horses & ponies for children to ride, and is a member of the National Pony Club Tetrathlon Committee.

Heather Greenslade