Assisi Veterinary Hospital

Is this your veterinarian?

250 Hempstead Ave
Malverne, NY 11565

Driving Directions

(516) 256-0022


  • Hours:
  • Mon-Fri: 8:00am - 9:00pm
  • Sat: 9:00am - 5:00pm
  • Sun: 9:00am - 5:00pm

The professional and courteous staff at Assisi Veterinary Hospital is committed to providing your pet with the very best medical care available. Our extensive list of services demonstrates our dedication to meeting your pet’s needs. Our staff is what makes our practice truly unique. Our knowledgeable staff will treat you and your pet with the compassion, respect, and professionalism you deserve. Whether your pet is a youngster, a senior, or anything in between, our focus is on promoting your pet’s health and longevity. Call today to learn more about our services and how we can help promote better health for your pet.

Assisi Veterinary Hospital Services

  • Anesthesia
  • Bathing
  • Behavioral Medicine
  • Birds (Avian Medicine)
  • Blood Transfusions
  • Boarding
  • Dental Care
  • Emergency and Critical Care
  • Fully Stocked Pharmacy
  • Grooming
  • Hospice and Euthanasia Services
  • House Calls
  • Laboratory
  • Laser Therapy
  • Microchipping
  • Nutritional Counseling
  • Pain Management
  • Parasite Prevention and Control
  • Puppy and Kitten Care
  • Rabbits and Small Mammals
  • Radiology (Digital X-Rays)
  • Reptiles
  • Senior Care
  • Surgery
  • Ultrasound
  • Vaccinations
  • Wellness Exams

Assisi Veterinary Hospital Staff Profiles

Dr. Ricarlos Guzman

Owner / Veterinarian
Dr. Ricarlos Guzman is the founder and owner of Assisi Veterinary Hospital. Born in Brooklyn and raised in Queens, Dr. Guzman is proud to establish a hospital serving Long Island and our neighboring boroughs. After graduating from Florida Southern College and completing his prerequisites at the University of Florida, he continued his education at Tuskegee University School of Veterinary Medicine. While completing his degree, Dr. Guzman participated in multiple externships including one at The Animal Medical Center in New York City. After his graduation from Tuskegee University, Dr. Guzman participated in a fourteen month internship at the West Palm Beach Veterinary Referral Service. This internship was focused on surgery, internal and emergency medicine. Dr. Guzman also worked as a general practitioner in Long Beach, New York prior to founding Assisi in 2007. Also in 2007, Dr. Guzman received accreditation from the United States Department of Agriculture to perform services in connection with interstate and international animal travel.
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Tuskegee University School of Veterinary Medicine

Surgery, internal and emergency medicine

Dr. Chen

Dr. Chen was raised in Huntington Beach, California. He attended University of California at Berkeley for his undergraduate work and majored in integrated biology. After completing his bachelor's degree, he went on to earn a master's degree in laboratory animal science from Hahnemann University in Philadelphia, PA before attending Ross University School of Veterinary Medicine. Upon completing his education in 2004, Dr. Chen went on to do an internship at Long Island Veterinary Specialty Hospital in Plainview. During his internship, he rotated through emergency, oncology, ophthalmology, dermatology, internal medicine and surgery before going on to practice at a small animal hospital in Halesite, NY before joining us here at Assisi. Dr. Chen enjoys every aspect being a Veterinarian and has a special interest in ophthalmology and surgery. At home, he has a 3 year old son named Tyler and a 10 year old mixed breed dog named Maximus who he rescued from the Island of Saint Kitts. He also enjoys doing home improvements, cooking, and gardening as well as skiing, snowboarding, working out, and playing basketball and softball. Dr. Chen also speaks fluent Mandarin!
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Years in Practice: 12

Hahnemann University

Dr. Laura D'Onofrio

Dr. Laura D'Onofrio was born and raised in Brooklyn, NY. Her love for animals started at an early age and she has now worked in the veterinary field for almost 15 years. Laura started as a kennel assistant in early high school and quickly excelled to veterinary technician. She attended Wagner College as an undergraduate majoring in chemistry. Laura began her veterinary studies at St. George's University in Grenada, West Indies and then completed her veterinary studies at Kansas State University in May 2010. At home, Laura has four rescue animals, a weimaraner named Phantom and a mix named Lira, along with 2 cats, Suzy and Gabby.
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Years in Practice: 18

Kansas State University