Long Island Veterinarians
Nassau County Veterinarian

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Dr. Frank DeFeis, DVM, CVA

Chief Operating Officer
Director of Oncology
Certified Veterinary Acupuncturist
Homeopathic Medicine
Practitioner of Veterinary Medicine

My name is Dr. Frank J DeFeis. I have been practicing for 20 years. I graduated from Ross University in 1990 and did my internships in Oklahoma and Guelph. My main interests are in companion animals with a special interest in internal medicine. I like to try and figure out the cases that aren't straight forward.  I am a member of AAHA , LIVMA, and CVA.  I have a special interest in herbology and acupuncture.  I have completed the acupuncture course at the Chi institute in Floridia. I am currently completing my herbology courses and hopefully will get a masters in chinese medicine in the future.  My hobbies are fishing, boating, quading and spending all my free time with my family and pets.  I  look forward to helping you and your pet in the future.