Veterinarians and Staff

Staff at Ironstone

  • sherilyn
    Sherilyn Allen

    Sherilyn Allen, VMD, U of PA Vet 1974, founded Ironstone Veterinary Hospital in 1982. An equine practitioner for many years before establishing small animal veterinary hospitals in Lansdale, PA and then Boyertown, Dr. Allen also raised three children and engaged in breeding and showing of Neapolitan Mastiffs, and other dogs, horses, various farm animals species, and exotic birds, while managing and maintaining Ironstone Farm.

    Now that her children are grown and gone, when Dr. Allen is not in the clinic consulting and treating patients with allopathic or holistic methods, or doing specialty surgeries on the Mastiff breed dogs, she can usually be found on the back of a horse.

  • PKazmierczak
    Pat Kazmierczak

    When not here at Ironstone, I enjoy time with my family and friends, snuggling on the couch with my Bernese Mountain Dogs, Cash and Ember. I also love camping and going to dog shows.

  • Bwilliamson
    Brittany Williamson
    Veterinary Assistant

    There's never a dull moment for me here at Ironstone. From being in the exam room for appointments to being outside tending to dogs, cows, goats or the occasional horse duties, Ironstone has not only become my second home, but my Son's as well! 

  • Julian
    Julian Barranco
    Horse Caretaker

    Julian is the Horse Care Taker here at Ironstone. He has been with Ironstone Veterinary Hospital for three years.

  • theresa
    Theresa Esbach
    Technician/Office Manager

    I have been a technician for over 15 years when I eagerly chose to make Ironstone Veterinary Hospital my home in 2004. I all enjoy all facets of this profession but I am truly passionate about dentistry and cold laser therapy. Working with a great team makes my job that much more enjoyable. When I am not at work I spend my free time taking my Doberman, Terra, for hikes, soaking up the sun or just snuggling on the sofa.

  • barbara
    Barbara Stiefel

    I have lived in the Boyertown area most of my life. I have worked at Ironstone as a tech and pet groomer since 1982. I raise Newfoundlands and have additional dogs, cats, and birds of my own.  

Ironstone Hospital and Farm Staff (for best viewing put video in full screen)


Blossom, our adorable though sleepy barn cat, loves to wave hello to all the families that come through Ironstone's door.  

Cow Heard


These are some pictures of the cows and goats that call Ironstone their home. They roam in the vast fields around the veterinary hospital.


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