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About Us

Winchester Veterinary Group was founded in 1989 by Dr. Stephen W. Zanotti and Dr. Jonathan E. Diehl.

We offer an extensive range of medical services for your pet. We have in-house digital radiology, surgery, laboratory and ultrasound, as well as a pharmacy to provide the vast majority of medications your pet may need. Additionally, we have board-certified specialists and consultants with advanced training in cardiology, ultrasound, and surgery.

In Memory of Jonathan E. Diehl, VMD 1953-2013
Co-founder, Winchester Veterinary Group
Veterinarian Extraordinaire

Nothing can take their place – no layman or lawmaker – no clinic or council. For those who can, with gentle hands and soothing words calm the fears of a stricken animal, have a gift reserved for few.
Those who can diagnose the sickness of a creature that cannot speak – one that cannot by sign nor gesture give any indication of the seat of illness – are endowed with knowledge, sympathy and understanding far beyond that reached by ordinary people.
Those who can, with the aid of medical science, brighten the eyes, stay the fever, energize the pulse, build resistance against diseases in an animal, have reached the goal only a favored few attain.
And what are their rewards? The knowledge that they have lived a life of true usefulness in helping creatures that cannot help themselves.
– Anonymous

I expect to pass through this world but once. Any good therefore that I can do, or any kindness or abilities that I can show to any fellow creature, let me do it now. Let me not defer it or neglect it, for I shall not pass this way again.
– William Penn