History A happy and healthy pet starts with a plan!


Dr. Harry M. Zweig founded Nassau Veterinary Clinic in 1937. It is one of the oldest animal hospitals in New York State!!! Believe it or not, many of our original patients were family cows and sheep! In 1956, Dr. Herbert Dietrich joined Dr. Zweig. Many changes have occurred in our clinic and in veterinary medicine since the 1950's. Dr. Zweig has since passed on and Dr. Herbert Dietrich retired in 1992. In December 1992, the clinic moved from the original location in Nassau to its current state-of-the-art facility, just one and one-half miles east of that original small red brick building. The new clinic is three times larger. In 1996, NVC sold the large animal portion of the practice and made a commitment to focus on the family pet and the Human Animal Bond. Today, NVC, employing six veterinarians, Dr. Lisa Dietrich, Dr. Carolyn Sanford, Dr. Rose Broglio, Dr. Suzy Fink, Dr. Jillian Moser, and Dr. Jennifer Haber. Our talented and compassionate staff of over 40 currently cares for about 24,000 family pets.

Real Stories from Real Owners

  • “I brought my dog to them & they took their time going over everything & treated her with such care & love.”

    - Stacey T
  • “Everyone is always helpful and kind every time we are there.”

    - Jackie B
  • “I have been going to Nassau Vet for decades. They are compassionate, knowledgable, thorough and professional.”

    - Cindy C

More Than Eight Decades of Care.

What Makes Us Different.
  • Experience Worth Trusting

    For over 80 years, Nassau Veterinary Clinic has been going above and beyond for our community's animals' needs.

  • True Animal Lovers

    We are a group of passionate people who love animals. Our employees combined have more than 200 beloved pets.

  • Wide Variety of Care

    Whether your pet needs to be groomed, get their vaccinations, or needs to be watched while you're away, Nassau Veterinary Clinic has you covered.

Does Your Fur-Baby Need Care?