24 Hour Emergency Vet Hospital and Urgent Pet Care in Commack, New York

Dr. Mario Costa
Medical Director
Binghamton University; Western University of Health Sciences; West Hills Animal Hospital and Emergency Center/Gold Coast Center for Veterinary Care - small animal rotating internship
Dr. Costa was born and raised in Queens, NY and has practiced medicine at a general practice for two years before returning to emergency medicine. A VEG ER doctor since 2021, Dr. Costa became a Medical Director in 2024. He is committed to providing excellent medical quality and superior customer service to people and their pets when they need us most. He enjoys playing the guitar, reading, woodworking, exercising, and spending time with his wife, two children, and two dogs.
VEG emergency veterinary hospital in Commack, Long Island, New York is open 24 hours, 7 days a week, offering the highest quality of pet ER care in Suffolk County. Our team provides prompt, compassionate care to all pets, including dogs, cats, birds, and exotics.
24-HOUR WALK-IN EMERGENCY VET CARE IN COMMACK
We’re conveniently located on Jericho Turnpike, accessible from Elwood, Hauppauge, Kings Park, and Smithtown. Call us or just walk in — no appointments taken.
PARKING INFORMATION FOR OUR VET HOSPITAL
You’ll find parking directly outside our VEG veterinary emergency hospital entrance with additional spots around back, as well as an accessible space right by the front door. Need help bringing your pet inside? Give us a call – one of our VEGgies will gladly meet you at the door.
EMERGENCY VET CARE WHEN YOU NEED IT MOST
From treating your puppy for dehydration after a day of play at Sunshine Acres Park to helping a rabbit with head tilt, VEG in Commack is ready 24/7 for any emergency. Our reliable care team of ER-trained vets, veterinary nurses, and vet assistants are here day and night to help with your pet’s emergency or urgent care needs.
why choose veg
customer-focused veterinary emergency care
call us 24/7
Pet emergencies shouldn’t be put on hold. Call and speak with a veterinarian to get your medical questions answered.
see a vet now
No appointment needed, come in 24/7. Emergency vet care starts the moment you walk in the door.
stay together
No waiting and wondering in a lobby. Stay with your pet the entire time and get as involved as you like in their care.
stress less
At VEG, we make a scary situation less stressful. We sit on the floor with your pet, or wherever they’re most comfortable.
open now for:
Emergencies
High-quality critical care for when the unexpected happens.
point-of-care ultrasound
Non-invasive, soft-tissue imaging with same-day results.
urgent care
For injuries or illnesses that simply cannot wait.
x-rays
Performed on site to immediately diagnose fractures, stones, foreign ingestions, and more.
diagnostics + testing
Done right in our hospital for less wait time and fast results.
end-of-life care
Comfortable, compassionate, close-to-home care during the most difficult time.
surgery
A high-quality veterinarian is on site for emergency operations.
treatment + hospitalization
Care starts right away; if your pet needs to stay overnight, you can too.
the reviews are in!
June 1, 2025

charline charles
May 31, 2025

Paola Spicer
May 12, 2025
