New clients will receive a Free first exam valued at $71.00.

New clients must mention this offer when booking your first appointment.

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Trumbull Animal Hospital


As with most every business now, Trumbull Animal Hospital is working to find ways to safely and effectively provide care to our clients during the human medical crisis of coronavirus (COVID-19). Keeping our clients, their pets and our staff safe and healthy is our upmost priority.

Trumbull Animal Hospital is open for sick appointments, emergencies, medications, and food. At this time, we will temporarily suspend wellness appointments and elective surgeries. We will return to providing these services as soon as possible. We will be happy to reschedule any appointments that are cancelled as a result of these necessary actions.

In an effort to reduce the possibility of viral transmission and to allow for adequate disinfecting of the hospital, we will be operating on a reduced schedule. Please continue to check our Facebook page and/or call us for updates on our daily hours.

For your safety and the safety of our staff, we request the following of our valued clients:

· If you are experiencing symptoms of COVID-19 or are feeling ill, please stay home and seek medical attention. We are asking the same of our staff.

· If you are ill and your pet needs medical attention, please call us at 203-268-6231. We will do our best to work with you to make a plan to care for your pet.

· When you arrive for a scheduled appointment, please call our receptionists at 203-268-6231. One of our assistants or technicians will meet you at your car or at the door. They will bring your pet in for the appointment. Following an examination, the doctor will call your or come to your car to discuss treatment. Approved treatments will be completed and medication will be prescribed as appropriate. All payments can be made over the phone. Our assistants or technicians will return your pet to the car following the appointment.

· If you need food or medication, please call us at 203-268-6231. Together we will make a plan to get these to you. As with medical appointments, all payments can be made over the phone.

We appreciate your understanding during this unprecedented time. Please take COVID-19 seriously. Take this time to be at home with your family and pets. It is not necessary to panic, but the most vulnerable among us need the rest of us to come together in the interest of the whole community. #STAYHOME

Stay safe, Trumbull Animal Hospital

Trumbull Animal Hospital prides itself on being a veterinary center serving Trumbull, CT. It is our veterinarian team’s goal to provide our clients and their pets with the quality vet healthcare and consideration they deserve. We understand that your pets are more than just animals, they are family members. We hope that your family will choose to become part of our vet family as well. We are currently providing healthcare services for cats, dogs, rabbits, reptiles, pocket pets, and exotic pets. 

Our Veterinarian Staff

Our team of trained animal experts has founded their practice on a love of animals. Our clinic is headed by Dr. Ian Ostrover, Dr. Wendy Roberston, Dr. Melissa DeFabrizio, Dr. Hellthaler, Dr. Tarsi and Dr. Carmella. This team is made up of licensed, experienced and passionate individuals. Our first priority is always your pet’s well-being. You can always rest assured that your pet will receive the attention and professional treatment they deserve during exams and procedures.

Our Approach to Healthcare

In our clinic, we believe that pet owner education is the foundation to promote the long term health benefits for pets. This is why we love to take the time to invest in educating our clients on how to maintain a healthy lifestyle for their animals. This education includes discussing your pet’s nutrition, exercise and other lifestyle habits that can greatly affect their health. This type of education is crucial to your confidence as a pet owner. Beyond this, we take the time and attention to customize a treatment plan to help your pet get back to their healthy self as quickly as possible.

Whether your pet needs regular check-ups, routine exams, or you need advice on how to best maintain your pet’s health and wellness, you will find our clinic to be your veterinary care headquarters for domestic and exotic pets.

In addition to these services, we also offer boarding and grooming services for our clients. Our newly remodeled facility provides a welcoming environment in which your pets will love to call a home away from home. During their stay, your pets will be treated with the same care and concern that you would provide at home.

Emergencies and Surgeries

If your pet’s health takes a turn, and you find that they are in need of surgery or emergency care, you can rest assured that we have the staff, knowledge, and equipment to provide everything that your pet needs. Our staff is trained to handle most pet emergencies as well as surgical procedures. In addition, our staff will provide a positive and supportive environment for your family during this stressful time.

Your Local Veterinarian in Trumbull

If you are a pet owner living in the Trumbull area, call Trumbull Animal Hospital at (203) 268-6231 to book an appointment. We hope that you choose to be a part of our family and that we can help provide your pet with a healthy and happy life.

  • Dr. Danielle Hellthaler, DVM

    Dr. Hellthaler grew up in Trumbull, CT before attending Stockton University in New Jersey, where she graduated summa cum laude with a Bachelor of Science in biology. During school breaks, she worked as a veterinary assistant, and also coached gymnastics at the local YMCA. She then went on to pursue her Doctorate of Veterinary Medicine from the University of Missouri. After graduating she moved back to Trumbull, where she now lives with her cat, Maya.

  • Dr. Katherine Tarsi, DVM

    Dr. Tarsi grew up in upstate New York and graduated with commendation from the University of Glasgow School of Veterinary Medicine. She has a special interest in the human-animal bond and a passion for helping people take the best care of their pets. She had the pleasure of participating in the foundation of a program to assist homeless owners take care of their dogs while at Glasgow. Her other interests include diagnostic imaging and soft tissue surgery. Dr. Tarsi lives at home with her husband Grant, her daughter Eloise and their 12-year-old Brittany Spaniel named Hunter.

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  • Dr.
    Ian Ostrover,

    Dr. Ostrover grew up in Easton and Trumbull.  He earned a biology degree from Eastern Connecticut State University. He attended Ross University School of Veterinary Medicine and completed his clinical rotations at Colorado State University. In 2010, Dr. Ostrover moved back to Connecticut and started working at Trumbull Animal Hospital. He purchased the practice from Dr. Kellner in 2014. Dr. Ostrover’s interests are surgery, injuries and treatments associated with athletic/working dogs, medicine, exotic species, ultrasound and just about anything else that is challenging or out of the ordinary. His goal as a practice owner is to provide the best medical care to his patients.  He strives to create an environment at Trumbull Animal Hospital that allows for a cohesive enjoyable work experience for the entire staff and ultimately builds a strong animal care team. 

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  • Dr.
    Wendy Robertson

    Dr. Wendy Robertson, an associate small animal veterinarian at Trumbull Animal Hospital,already knew as a ten-year-old growing up in Ridgefield, CT, that being a vet was her dream.That’s the year she became involved with the local dog shelter and a non-profit cat rescueorganization. From her volunteer work there with homeless dogs and cats, her true passion anddesire to become a veterinarian sprang.Early on her mother warned her that veterinary medicine is not an easy job of “playing withkittens and puppies all day.” Taking hold of that challenge, Dr. Robertson found a localveterinarian who allowed her to volunteer in his practice at the age of 14. She has worked insmall animal veterinary practice ever since.After her growing up years in Ridgefield, Dr. Robertson moved to Virginia during high schoolfollowed by undergraduate studies in microbiology at Virginia Polytechnic Institute and StateUniversity (VA Tech). 

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  • Dr.
    Melissa DeFabrizio

    Dr. De Fabrizio attended Rhodes College in Memphis, TN where she obtained her Bachelor of Science in biology while also volunteering at local animal hospitals and shelters. She worked as a veterinary assistant in her hometown of Toronto, Ontario before attending Tufts University, where she received her doctorate in Veterinary Medicine.

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  • Dr.
    Vickie Carmella

    Dr. Carmella, known by clients and staff as Dr. Vickie, grew up in Fairfield County prior to matriculating at Wheaton College (MA), where she majored in Psychobiology with a double focus in Environmental Studies and Anthropology. Dr. Vickie graduated Magna Cum Laude from Wheaton College and was awarded the Julia Lange Fellowship for excellence in Science. She then continued to pursue her Doctorate of Veterinary Medicine from Ross University and completed her clinical studies at Auburn University, a premier referral University. 

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Read What Our Clients Say

  • "Dr. O and staff are wonderful. Everyone takes the time to listen to concerns and truly care for their patients."
    Carol K.- Trumbull, CT
  • "Great doctor and nurses. Made my new puppy feel like he was home. I won't have an issue getting him back here!"
    Matthew S

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Office Hours

Our Regular Schedule


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-7:00 pm


8:00 am-5:00 pm


8:00 am-1:00 pm