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50+ years of service and experience combined with innovative medicine and compassionate care

Internal Medicine

Unfortunately for our pets, some illnesses are elusive and complex in nature, and are not easily detected through routine testing. Even with a confirmed diagnosis, the biologic behavior of certain disease processes just makes them difficult to treat. In these situations, you and your primary care veterinarian might look to the help of a specialist in internal diseases for further evaluation or diagnostic testing.

​Oradell Animal Hospital is home to five board certified veterinary internists, combining decades of clinical expertise and experience in all facets of internal medicine: Endocrinology, Gastroenterology, Hematology, Hepatology, Infectious Diseases, Immunology, Nephrology/Urology and Respiratory Disease. With innovative techniques, direct access to the best screening tools, and your pet’s best interest at heart, our team of specialists take a systematic and comprehensive approach with each and every patient. 

Department Doctors

Alyssa Chandler, DVM, DACVIM

Internal Medicine

Mary Ann Crawford, DVM, DACVIM

Internal Medicine

Deborah Hall, DVM, DACVIM

Internal Medicine

John Lucy, DVM, DACVIM

Internal Medicine

Dara Zerrenner, VMD, DACVIM

Internal Medicine

Areas Of Expertise

Endocrinology – diabetes mellitus, thyroid and parathyroid disorders, feline hyperthyroidism, Addison’s, Cushing’s disease

Gastroenterology – esophageal and gastric disorders, inflammatory bowel disease, pancreatitis

Hematology – anemia, platelet and white blood cell disorders

Hepatology – hepatitis, hepatic lipidosis, portosystemic shunts, biliary obstruction

Immunology – autoimmune blood disorders, polyarthropathy, myasthenia gravis

Nephrology/Urology – acute/chronic kidney disease, glomerulonephritis, urinary tract infections, urinary stones

Nuclear Medicine – I131 – feline hyperthyroidism

Respiratory Disease – asthma, bronchitis, pneumonia

Diagnostics

     Bone Marrow Aspiration

     Bronchoscopy

     Colonscopy

     Cytoscopy

     Computed Tomography

     Endoscopy

Endotracheal Washes

     Esophageal Ballooning

     Feeding tube placement

         Nasogastric   

         Esophagostomy   

         Percutaneous Gastrotomy

     Fluoroscopy

     Joint Fluid Aspiration

     Laparoscopic Liver Biopsy

     Magnetic Resonance Imaging

Metabolic and Endocrine Testing

     Radiography

     Rhinoscopy

     Ultrasonography

Ultrasound-guided Aspirates and Biopsies

Department Doctors

Alyssa Chandler, DVM, Diplomate, ACVIM (Internal Medicine)

Dr. Chandler grew up in Aurora, New York and completed her undergraduate degree at Saint Anselm College in New Hampshire. She earned her DVM at Cornell University College of Veterinary Medicine. Dr. Chandler completed a small animal rotating internship at North Carolina State University College of Veterinary Medicine, and a residency in internal medicine at Cornell. Dr. Chandler is board certified by the American College of Veterinary Internal Medicine. Her special interests include infectious disease and immune mediated disease. She has two cats, Gracie and Violet.

Deborah Hall, DVM, Diplomate, ACVIM (Internal Medicine)

Dr. Hall received her DVM degree from the University of Wisconsin-Madison School of Veterinary Medicine. She completed a general internship at Michigan State University College of Veterinary Medicine and completed a residency in internal medicine at Kansas State University College of Veterinary Medicine. Hall, Deborah, “Hepatocutaneous Syndrome in Shih Tzus, JAVMA, Vol248, No.7, Pp802-813, April 2, 2016

Mary Ann Crawford, DVM, Diplomate, ACVIM (Internal Medicine)

Dr. Crawford received her DVM degree from The Ohio State University College of Veterinary Medicine in 1978. After additional training at The Animal Medical Center and Michigan State University, she achieved board certification in the specialty of Internal Medicine. She was Professor and Head of the Medicine Department at Louisiana State University College of Veterinary Medicine before coming to Oradell Animal Hospital in 1986. Dr. Crawford is a past president of the American College of Veterinary Internal Medicine and a past president of the Northern New Jersey Veterinary Medical Association. She was awarded "Distinguished Alumnus" from The Ohio State University College of Veterinary Medicine in 1995 and in 2004 "Outstanding Alumnus" from the Animal Medical Center in New York City. She is also the recipient of the 1997 Friskies Pet Care Award for Feline Medicine and Nutrition given for outstanding clinical research in the area of feline hepatic lipidosis. Dr. Crawford has been involved in a number of clinical research projects and continues to volunteer for the state, currently acting as chair of the Education Committee of the New Jersey Veterinary Foundation. In her free time she spends time with her family and enjoys swimming and participating in community activities.

John Lucy, DVM, Diplomate, ACVIM (Internal Medicine)

Dr. Lucy grew up in Ocean County, and developed a fondness for working with animals at an early age. After completing his undergraduate training at Rutgers University, he traveled to upstate New York and received his DVM from Cornell’s world-renowned College of Veterinary Medicine. He completed his rotating internship in medicine and surgery at Oradell Animal Hospital and residency in small animal internal medicine at Cornell. Dr. Lucy's medical interests include endocrinology, hepatology, immune-mediated disorders and minimally invasive diagnostics and therapeutics. Dr. Lucy is the director of our Radioiodine Clinic for the treatment of hyperthyroid cats. He was the 2015 recipient of the Society for Comparative Endocrinology’s early career award and his research on feline hyperthyroidism was awarded the prestigious Oxford Award for clinical endocrine publication of the year in 2018. In his spare time, Dr. Lucy enjoys running, swimming, travel and watching copious amounts of HGTV.

 

Dara Zerrenner, VMD, Diplomate, ACVIM (Internal Medicine)

Dr. Zerrenner received her Veterinary degree from the University of Pennsylvania School of Veterinary Medicine. She completed an internship in small animal medicine and surgery at Oradell Animal Hospital and completed her residency in internal medicine at the Animal Medical Center in New York City. Dr. Zerenner is board certified by the American College of Veterinary Internal Medicine. Her professional interests include endocrinology, gastroenterology and nephrology. She loves spending time with her two children and pets. She enjoys travelling anywhere there is a beach!