Welcome to Pearl River Animal Hospital
Your Veterinarian in Pearl River NY

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Pet Emergency? Call us right away at (845) 735-3213!

Pearl River Animal Hospital is a full-service veterinary medical facility, located in Pearl River, NY. The professional and courteous staff at Pearl River Animal Hospital  seeks to provide the best possible medical care, surgical care and dental care for their highly-valued patients.

We are committed to promoting responsible pet ownership, preventative health care and health-related educational opportunities for our clients. Pearl River Animal Hospital  strives to offer excellence in veterinary care to Pearl River and surrounding areas.

Please take a moment to contact us today, to learn more about our veterinary practice and to find out more information about how Pearl River Animal Hospital  can serve the needs of you and your cherished pet.

At Pearl River Animal Hospital, we treat your pets like the valued family members they are.

  • Diane Y. Stenzler, DVM

    Years in Practice: 28

    Education: Cornell University. Ross University

    Dr. Diane Stenzler has been practicing as a Small Animal Veterinarian since 1992.  She has special interests in Dermatology, Dentistry and Ophthalmology. She holds a Bachelor of Science degree in Animal Science from Cornell University (1989) and a DVM degree from Ross University of Veterinary Medicine. After she graduated with honors (1992), Dr. Stenzler completed a course in Human Ultrasonography. She has used her knowledge to perform ultrasounds on canines and felines to this date.

    Dr. Stenzler’s love for animals dates back to her early childhood when she displayed her keen interest in Veterinary Medicine to her father, Dr. Anton Stenzler, a Veterinarian of over 45 years. Dr. D. Stenzler has had the unique pleasure of being able to work in a true family business with her Father. Dr. D Stenzler is a member of the Rockland/Westchester Veterinary and Northern NJ Veterinary Associations, both of which have monthly CE meetings that she regularly attends. She has also been a member of the Rockland/Westchester Executive Board.  Dr. Stenzler is an active member of AVMA and AAHA, and also attends a monthly Radiology meeting for Veterinarians.

    Working side by side with her father at the Pearl River Animal Hospital (Rockland County) since 1992, Dr. D. Stenzler continues to have amazing results treating chronic ear, skin, and paw dermatologic diseases –conditions that had resisted previous treatment attempts. She has developed two ear and skin treatments that she custom designed, which have proven invaluable. She volunteers each year as a Vet on call at the Dog walk for cancer at the Rockland Community College, an event that was previously held at Bear Mountain State Park.

    She owns a lovable and an energetic ferret, who was a rescue. Her green thumb, together with Ball Room Dancing,cooking, jewelry making, reading, riding horses and other interests, occupy her spare time.

  • Dr. Lisa Barnett, VMD

    Years in Practice: 23

    Education: University of Pennsylvania, University of Binghamton

    Dr. Lisa Barnett graduated with honors from University of Pennsylvania School of Veterinary medicine in 1998.  Prior to veterinary school she obtained her Bachelor of Science  degree from University of Binghamton.  A native of New City, Dr Barnett has practiced in Manhattan and Rockland County.  She has been practicing at Pearl River Animal Hospital since 2006.  She is an active member of the AVMA (American Veterinary Medical Association), NYSVMS (New York State Veterinary Association), and WRVMA (Westchester Rockland Veterinary Medical Association). Her passion for veterinary medicine is driven by the human-animal bond and she puts an emphasis on client education. Dr. Barnett is also a Fear Free Certified Professional. Her special interests include preventative and internal medicine. Dr Barnett and her husband have 2 children, 2 dogs (a pug named Finn and a Puggle named Pixie) and a cat  (Gus). When not practicing veterinary medicine she enjoys spending time with her family, traveling and reading.

  • Susan List, LVT

    Years in Practice: 10

    Education: Mercy College

    In 2008, at the age of 49, I decided to go back to school and pursue my passion with animals, becoming a Licensed Veterinary Technician and graduated Mercy College in 2011. My husband Neal, and my kids Pamela and Brandon were my biggest supporters.

    I love what I do. My goal is to always bring a positive attitude and a smiling face to every appointment so both my patient and client have a comforting and welcoming experience. I'm also a Fear Free Certified Professional, helping to create less Fear, Anxiety and Stress for our patients.

    That is my objective each and every day.

  • Kevin Dolan

    Years in Practice: 3

    Hi! My Name is Kevin Dolan, and I am a Veterinary Assistant at Pearl River Animal Hospital, and I am working towards becoming a licensed Veterinary Technician. I first started working here in 2009 while attending college. Although I left to work in laboratory research in 2013, I returned in 2018 and rediscovered my love for veterinary medicine. I work in this field because it is an intersection of two things I genuinely care about, animals and medicine! My father was raised in Pearl River and many of my extended family members still live here, so I have a deep love and connection to the town and area. I hope to continue to serve the members of this community with the compassion their pets deserve!

  • Diane Rypkema-Walter, LVT

    Bio coming soon

  • Dr. Anton M. Stenzler, DVM

    Years in Practice: 58

    Education: Cornell College of Veterinary Medicine

    Sadly, Dr. Stenzler passed due to COVID-19. He will be deeply missed.

    Dr. Anton Stenzler graduated from Cornell College of Veterinary Medicine in 1963. He served as a Veterinarian for two years in the U.S. Air Force, and gained experience working at two busy practices on Long Island. Dr. Stenzler served as president of Westchester/Rockland Veterinary Medical Center for two years and was involved with the Rockland County rabies clinic for many years, as well. He opened up his practice in Pearl River, NY in 1970 and has been an active member of the Pearl River Rotary Club since 1973.


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Hours of Operation

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9:00 am-5:00 pm


9:00 am-5:00 pm




9:00 am-5:00 pm


9:00 am-5:00 pm





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Read What Our Clients Say

  • "My cat had a serious injury to his paw needing drains inserted under anesthesia. They took such good care of him. I’ll be taking him here for all his veterinary appointments."
    Ellie J.
  • "Extremely knowledgeable Doctors & staff very professional & caring ..... i can't say enough good things about Pearl River Animal Hospital or how happy they are there for my best friend"
    John F.
  • "I have been going to this practice since about 1994, I wouldn't go anywhere else. They are the most compassionate and understanding people you could possibly ask for. I have recommended them to 3 people they all go there now."
    Debbie K.
  • "Yesterday I brought my cat, Lucy as she was not feeling well! The diagnosis is not good, we are taking it one step at a time. The care Lucy received and the kindness and support from Dr. Di and the staff was wonderful. I have been going to this practice for over 30 years!"
    Cathy D.