Internal Medicine


Your family veterinarian may choose to refer you to our Internal Medicine department if your pet is experiencing unexplained weight loss, heavy or labored breathing, fever, vomiting or diarrhea, abdominal pain or distension, anemia, or various other symptoms. Our Internist analyzes the complex systems of the body, their interactions and their dysfunctions, and is specially trained to discover any imbalances or disorders that may be making your pet ill. The Internal Medicine team of Pieper Memorial employs advanced medical knowledge and uses state-of-the-art technology to diagnose your pet’s disorder.

Working with your primary care veterinarian, our internist will gather pertinent case information, obtain a medical history, perform a complete physical exam, then recommend advanced medical tests or procedures to diagnose your pet’s condition. Once a diagnosis has been made, a medical treatment plan will be prepared by our internist. All medical findings will be reported to your regular veterinarian who will, in many cases, continue with follow up care. This effective collaboration between the specialist and primary care veterinarian supplies your pet with the most ideal medical outcome.

Frequently Asked Questions

Internal Medicine Diseases

  • Diabetes
  • Anemia
  • Liver and Gall Bladder
  • Kidney and Urinary Bladder
  • Gastrointestinal tract and pancreas
  • Lungs and Upper Airways
  • Hormonal Disease
  • Immune System and Bone Marrow
  • Infectious Disease

    Dr. Carolyn Gross, DCVIM

    Dr. Carolyn Gross first discovered her passion for veterinary medicine during her undergraduate research on frog embryos at the University of Massachusetts Amherst.

    From there, she attended Tufts University, earning her DVM and graduating as her class speaker in 2011. Following a rotating small animal emergency focused internship through VCA Norwalk and Shoreline practices, Dr. Gross went on to complete a residency in Internal Medicine at the University of Pennsylvania. She joined the team of specialists at Pieper Memorial in July 2015 and has a special interest in endocrine diseases (Diabetes Mellitus, Cushing’s Disease, Addison’s Disease, and Thyroid Disorders) as well as kidney and liver disease.

    Throughout her career, Dr. Gross has also taken opportunities to study and work on elephants in the wild, completing an expedition to track migration patterns in Africa as well as research on behavior and vocalizations in Nepal. When not in the office at Pieper Memorial, Dr. Gross enjoys spending time with her furry family (three cats and two dogs) as well as outdoor activities (hiking and kayaking). She also writes in her spare time – you can check out her first novel, Preda’s Voice on

    Sarah Winzelberg, VMD, DACVIM

    Sarah Winzelberg VMD is an Internal Medicine specialist who has worked at our Pieper Memorial location since 2017. Originally from Pittsburgh and Manhattan, Dr. Winzelberg received her VMD from the University of Pennsylvania and completed her internship and Internal Medicine residency at the Animal Medical Center in NY, NY, where she specialized in the study of infectious diseases. Her other medical interests include renal disease, hematology, and gastroenterology. When not working, she enjoys biking, yoga, gardening, cooking, and spending time with her family.