Phone: (631) 473-0942| Fax: (631) 473-6980 | Monday - Friday: 8:30AM - 3PM | Saturday & Sunday: Closed | *Call between the hours of 8am - 3pm to get evening hours.

Online Pharmacy

Wellness Wednesdays are here! Receive a free heartworm test or free feline leukemia test + a $25 credit for a future exam (up to $100 total value) when you bring your pet in for a wellness exam on Wednesdays in February!

Boarding

Boarding in Port Jefferson, NY

If you are going out of town, board your pet at Countryside Animal Hospital. We are proud to offer pet boarding under the supervision of our veterinary team. We cater to all of your pet’s needs including food, play, a complimentary nail trim, several walks, and lots of fun! By choosing us, you can rest assured that if your pet has a health concern while you are away, they will be in the best hands possible.